Parav Pandit [Tue, 14 Nov 2017 12:52:00 +0000 (14:52 +0200)]
RDMA/cma: Set default GID type as RoCE when resolving RoCE route
As the function name suggests cma_resolve_iboe_route() resolves RoCE
route. However, its default GID type is IB_GID_TYPE_IB and not
IB_GID_TYPE_ROCE, even though both are mapped to the same enum value.
Change default GID type to IB_GID_TYPE_ROCE.
cma_iboe_set_mgid() is updated to reflect the RoCEv2 GID check.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Artemy Kovalyov [Tue, 14 Nov 2017 12:51:59 +0000 (14:51 +0200)]
IB/umem: Fix use of npages/nmap fields
In ib_umem structure npages holds original number of sg entries, while
nmap is number of DMA blocks returned by dma_map_sg.
Fixes:
c5d76f130b28 ('IB/core: Add umem function to read data from user-space')
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Daniel Jurgens [Tue, 14 Nov 2017 12:51:58 +0000 (14:51 +0200)]
IB/cm: Add debug prints to ib_cm
Add debug prints to the error paths in the connection manager control
flows, to help debug connection management problems.
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Matan Barak [Tue, 14 Nov 2017 12:51:57 +0000 (14:51 +0200)]
IB/core: Fix memory leak in cm_req_handler error flows
In cm_req_handler error flows, sometimes cm_id_priv->timewait_info
isn't free'd.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Parav Pandit [Tue, 14 Nov 2017 12:51:55 +0000 (14:51 +0200)]
RDMA/cma: Use correct size when writing netlink stats
The code was using the src size when formatting the dst. They are almost
certainly the same value but it reads wrong.
Fixes:
ce117ffac2e9 ("RDMA/cma: Export AF_IB statistics")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Erez Shitrit [Tue, 14 Nov 2017 12:51:54 +0000 (14:51 +0200)]
IB/ipoib: Update pathrec field if not valid record
In case that the PathRecord is not valid (SM changed its network prefix)
ipoib will continue issue PathQuery requests with the same parameters
that are in its database, which are no longer valid anymore.
Now the driver in that case will re-initialize the record from a valid
place (the priv structure keeps the updated values), and a valid request
will be issued.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Erez Shitrit [Tue, 14 Nov 2017 12:51:53 +0000 (14:51 +0200)]
IB/ipoib: Avoid memory leak if the SA returns a different DGID
The ipoib path database is organized around DGIDs from the LLADDR, but the
SA is free to return a different GID when asked for path. This causes a
bug because the SA's modified DGID is copied into the database key, even
though it is no longer the correct lookup key, causing a memory leak and
other malfunctions.
Ensure the database key does not change after the SA query completes.
Demonstration of the bug is as follows
ipoib wants to send to GID fe80:0000:0000:0000:0002:c903:00ef:5ee2, it
creates new record in the DB with that gid as a key, and issues a new
request to the SM.
Now, the SM from some reason returns path-record with other SGID (for
example, 2001:0000:0000:0000:0002:c903:00ef:5ee2 that contains the local
subnet prefix) now ipoib will overwrite the current entry with the new
one, and if new request to the original GID arrives ipoib will not find
it in the DB (was overwritten) and will create new record that in its
turn will also be overwritten by the response from the SM, and so on
till the driver eats all the device memory.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Erez Alfasi [Tue, 14 Nov 2017 12:51:52 +0000 (14:51 +0200)]
IB/mlx4: Remove unused ibpd parameter
Remove unused ibpd parameter from create_qp_rss() function.
Signed-off-by: Erez Alfasi <ereza@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Parav Pandit [Tue, 14 Nov 2017 12:51:51 +0000 (14:51 +0200)]
IB/core: Avoid exporting module internal function
ib_security_modify_qp and ib_security_pkey_access are core internal
function. So avoid exporting them.
ib_security_pkey_access is used only when secuirty hooks are enabled so
avoid defining it otherwise.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Parav Pandit [Tue, 14 Nov 2017 12:51:50 +0000 (14:51 +0200)]
IB/core: Depend on IPv6 stack to resolve link local address for RoCEv2
RoCEv1 does not use the IPv6 stack to resolve the link local DGID since it
uses GID address. It forms the DMAC directly from the DGID.
The code became confused and also tried to use this bypass for RoCEv2
packets, however RoCEv2 always uses a IP address in the GID and must
always use ARP or neighbor discovery to get the DMAC address.
Now that rdma_addr_find_l2_eth_by_grh() supports resolving link local
address to find destination mac address, lets make use of it.
This aligns it to how the rest of the IPv6 stack resolves link local
destination IPv6 address.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Parav Pandit [Tue, 14 Nov 2017 12:51:49 +0000 (14:51 +0200)]
IB/{core/cm}: Fix generating a return AH for RoCEE
When computing a UD reverse path (return AH) from a WC the code was not
doing a route lookup anchored in a specific netdevice. This caused several
bugs, including broken IPv6 link-local address support in RoCEv2. [1]
This fixes the lookup by determining the GID table entry that the HW
matched to the SGID for the WC and then using the netdevice from that
entry to perform the route and ND lookup for the 'DGID' to build a return
AH.
RoCE GID table management ensures that right upper netdevices of the
physical netdevices are added. Therefore init_ah_from_wc doesn't need to
perform such check.
Now that route lookup is done based on the netdevice of the GID entry,
simplify code to not have ifindex and vlan pointers. As part of that,
refactor to have netdevice as input parameter. This is already discussed
at [2].
Finally ib_init_ah_from_wc resolves dmac for unicast GID in similar way as
what ib_resolve_eth_dmac() does. So ib_resolve_eth_dmac is refactored to
split for unicast and non unicast GIDs, so that it can be reused by
ib_init_ah_from_wc.
While we are at refactoring ib_resolve_eth_dmac(), it is further
simplified
(a) to avoid hoplimit as optional parameter, as there is only one
user who always queries hoplimit.
(b) for empty line.
(c) avoided zero initialization of ret.
(d) removed as exported symbol as only ib core uses it.
For IPv6, this is tested using simple rping test as below.
rping -sv -a ::0
rping -c -a fe80::268a:7ff:fe55:4661%ens2f1 -C 1 -v -d
[1] https://www.spinics.net/lists/linux-rdma/msg45690.html
[2] https://www.spinics.net/lists/linux-rdma/msg45710.html
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Reported-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Andrew F. Davis [Tue, 5 Dec 2017 19:15:53 +0000 (13:15 -0600)]
IB/ocrdma: Remove unneeded conversions to bool
Found with scripts/coccinelle/misc/boolconv.cocci.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Dan Carpenter [Tue, 5 Dec 2017 14:39:23 +0000 (17:39 +0300)]
IB/mlx4: Potential buffer overflow in _mlx4_set_path()
Smatch complains about this code:
drivers/infiniband/hw/mlx4/qp.c:1827 _mlx4_set_path()
error: buffer overflow 'dev->dev->caps.gid_table_len' 3 <= 255
The mlx4_ib_gid_index_to_real_index() does check that "port" is within
bounds, but we don't check the return value for errors. It seems simple
enough to add a check for that.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Dan Carpenter [Tue, 5 Dec 2017 14:36:54 +0000 (17:36 +0300)]
RDMA/cxgb4: Add a sanity check in process_work()
The story is that Smatch marks skb->data as untrusted so it generates
a warning message here:
drivers/infiniband/hw/cxgb4/cm.c:4100 process_work()
error: buffer overflow 'work_handlers' 241 <= 255
In other places which handle this such as t4_uld_rx_handler() there is
some checking to make sure that the function pointer is not NULL. I
have added bounds checking and a check for NULL here as well.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Colin Ian King [Thu, 30 Nov 2017 13:30:06 +0000 (13:30 +0000)]
iw_cxgb4: make pointer reg_workq static
The pointer reg_workq is local to the source and does not need to be
in global scope, so make it static.
Cleans up sparse warning:
drivers/infiniband/hw/cxgb4/device.c:69:25: warning: symbol 'reg_workq'
was not declared. Should it be static?
Fixes:
1c8f1da5d851 ("iw_cxgb4: Fix possible circular dependency locking warning")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Arnd Bergmann [Mon, 27 Nov 2017 11:44:53 +0000 (12:44 +0100)]
infiniband: cxgb4: use ktime_get for timestamps
The debugfs file prints the difference between host timestamps as a
seconds/nanoseconds tuple, along with a 64-bit nanoseconds hardware
timestamp. The host time is read using getnstimeofday() which is
deprecated because of the y2038 overflow, and it suffers from time jumps
during settimeofday() and leap seconds.
Converting to ktime_get_ts64() would solve those two, but I'm going
a little further here by changing to ktime_get() and printing 64-bit
nanoseconds on both host and hw timestamps. This simplifies the code
further and makes the output easier to understand.
The format of the debugfs file obviously changes here, but this should
only be read by humans and not scripts, so I assume it's fine.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Geert Uytterhoeven [Wed, 29 Nov 2017 08:47:33 +0000 (09:47 +0100)]
RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo()
With gcc-4.1.2:
drivers/infiniband/core/iwpm_util.c: In function ‘iwpm_send_mapinfo’:
drivers/infiniband/core/iwpm_util.c:647: warning: ‘ret’ may be used uninitialized in this function
Indeed, if nl_client is not found in any of the scanned has buckets, ret
will be used uninitialized.
Preinitialize ret to -EINVAL to fix this.
Fixes:
30dc5e63d6a5ad24 ("RDMA/core: Add support for iWARP Port Mapper user space service")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Yuval Shaia [Wed, 29 Nov 2017 06:34:02 +0000 (08:34 +0200)]
IB/ipoib: Warn when one port fails to initialize
If one port fails to initialize an error message should indicate the
reason and driver should continue serving the working port(s) and other
HCA(s).
Fixes:
e4b2d06892c7 ("IB/ipoib: Remove device when one port fails to init").
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Arvind Yadav [Tue, 14 Nov 2017 12:50:56 +0000 (18:20 +0530)]
RDMA/bnxt_re: Remove redundant bnxt_qplib_disable_nq() call
The bnxt_qplib_disable_nq() call is redundant as it occurs
after 'goto fail' and hence it called twice. Remove it.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Andy Shevchenko [Mon, 11 Dec 2017 13:05:05 +0000 (15:05 +0200)]
IB/srp: replace custom implementation of hex2bin()
There is no need to have a duplication of the generic library, i.e.
hex2bin().
Replace the open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Arnd Bergmann [Mon, 11 Dec 2017 11:45:44 +0000 (12:45 +0100)]
IB/mlx5: revisit -Wmaybe-uninitialized warning
A warning that I thought I had fixed before occasionally comes
back in rare randconfig builds (I found 7 instances in the last
100000 builds, originally it was much more frequent):
drivers/infiniband/hw/mlx5/mr.c: In function 'mlx5_ib_reg_user_mr':
drivers/infiniband/hw/mlx5/mr.c:1229:5: error: 'order' may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (order <= mr_cache_max_order(dev)) {
^
drivers/infiniband/hw/mlx5/mr.c:1247:8: error: 'ncont' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/infiniband/hw/mlx5/mr.c:1247:8: error: 'page_shift' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/infiniband/hw/mlx5/mr.c:1260:2: error: 'npages' may be used uninitialized in this function [-Werror=maybe-uninitialized]
I've looked at all those findings again and noticed that they are all
with CONFIG_INFINIBAND_USER_MEM=n, which means ib_umem_get() returns
an error unconditionally and we never initialize or use those variables.
This triggers a condition in gcc iff mr_umem_get() is partially but not
entirely inlined, which in turn depends on the exact combination of
optimization settings. This is a known problem with gcc, with no
easy solution in the compiler, so this adds another workaround that
should be more reliable than my previous attempt.
Returning an error from mlx5_ib_reg_user_mr() earlier means that we
can completely bypass the logic that caused the warning, the compiler
can now see that the variable is never accessed.
Fixes:
14ab8896f5d9 ("IB/mlx5: avoid bogus -Wmaybe-uninitialized warning")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Mustafa Ismail [Fri, 8 Dec 2017 20:34:29 +0000 (14:34 -0600)]
i40iw: Reinitialize add_sd_cnt
add_sd_cnt in info structure passed to i40iw_create_hmc_obj_type
must be 0 and since it is modified during the call, it must be
reset in the loop. This avoids unnecessarily reprogramming the
SDs multiple times with the same values.
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Chien Tin Tung [Fri, 8 Dec 2017 20:34:28 +0000 (14:34 -0600)]
i40iw: Use sqsize to initialize cqp_requests elements
Use sqsize instead of I40IW_CQP_SW_SQSIZE_2048 to initialize
cqp_requests elements in the for-loop as sqsize is used
to allocate memory for cqp_requests.
Signed-off-by: Chien Tin Tung <chien.tin.tung@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Yuval Shaia [Wed, 29 Nov 2017 09:24:29 +0000 (11:24 +0200)]
IB/ipoib: Replace printk with pr_warn
pr_* is the preferred way to print messages, replace all
printk(KERN_WARN, ...) with pr_warn.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Gomonovych, Vasyl [Tue, 28 Nov 2017 15:18:07 +0000 (16:18 +0100)]
IB/core: Use PTR_ERR_OR_ZERO()
Fix ptr_ret.cocci warnings:
drivers/infiniband/core/uverbs_cmd.c:1156:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Arnd Bergmann [Mon, 27 Nov 2017 11:38:10 +0000 (12:38 +0100)]
nes: remove unused 'timeval' struct member
There is a stale entry in nes_cm_tcp_context that has apparently
never been used in mainline linux.
I'm trying to kill off all users of timeval as part of the
y2038-safety work, so let's just remove this one.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Arnd Bergmann [Mon, 27 Nov 2017 11:38:09 +0000 (12:38 +0100)]
i40iw: remove unused 'timeval' struct member
There is a stale entry in i40iw_cm_tcp_context that apparently
was copied from the 'nes' driver but never used in i40iw.
I'm trying to kill off all users of timeval as part of the
y2038-safety work, so let's just remove this one.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Yuval Shaia [Sun, 26 Nov 2017 11:51:35 +0000 (13:51 +0200)]
RDMA/vmw_pvrdma: Do not re-calculate npages
There is no need to re-calculate the number of pages since it is already
done in ib_umem_get.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Acked-by: Adit Ranadive <aditr@vmware.com>
Tested-by: Adit Ranadive <aditr@vmware.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Geert Uytterhoeven [Sun, 19 Nov 2017 18:59:21 +0000 (19:59 +0100)]
i40w: Remove garbage at end of INFINIBAND_I40IW Kconfig section
Remove leftover garbage (containing Kconfig dependencies for another
symbol?)
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Joe Perches [Tue, 14 Nov 2017 21:29:41 +0000 (16:29 -0500)]
IB/qib: Cleanup qib_set_part_key() with direct returns
Perhaps the function is better written without
the empty bail: label and without setting ret
and just using return.
Combining the int/bool conversion of any and the
direct returns makes the resulting code clearer.
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Colin Ian King [Tue, 14 Nov 2017 21:29:36 +0000 (16:29 -0500)]
IB/qib: remove redundant setting of any in for-loop
The variable all is being set but is never read after this
hence it can be removed from the for loop initialization.
Cleans up clang warning:
drivers/infiniband/hw/qib/qib_file_ops.c:640:7: warning: Value
stored to 'any' is never read
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Mike Marciniszyn [Tue, 14 Nov 2017 12:34:52 +0000 (04:34 -0800)]
IB/qib: Fix comparison error with qperf compare/swap test
This failure exists with qib:
ver_rc_compare_swap:
mismatch, sequence 2, expected
123456789abcdef, got 0
The request builder was using the incorrect inlines to
build the request header resulting in incorrect data
in the atomic header.
Fix by using the appropriate inlines to create the request.
Cc: <stable@vger.kernel.org> # 4.9.x+
Fixes:
261a4351844b ("IB/qib,IB/hfi: Use core common header file")
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Jan Sokolowski [Tue, 14 Nov 2017 12:34:45 +0000 (04:34 -0800)]
IB/hfi1: Use 4096 for default active MTU in query_qp
Currently, if a port is queried that has an invalid
Maximum Transmission Unit, driver reports default MTU of 2048.
This in incorrect.
Use default value of 4096 if invalid.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Don Hiatt [Tue, 14 Nov 2017 12:34:38 +0000 (04:34 -0800)]
IB/CM: Change sgid to IB GID when handling CM request
ULPs do not understand OPA GIDs and will reject CM requests
if the sgid does not match the local_gid. In order to
fix this behavior we convert the OPA GID back to an IB GID.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Don Hiatt [Tue, 14 Nov 2017 12:34:16 +0000 (04:34 -0800)]
IB/hfi1: Mask the path bits with the LMC for 16B RC Acks
16B packets require that the path bits are masked with the LMC.
This mask is done correctly in all 16B header creation but was
left out for the RC Acknowledge.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Linus Torvalds [Sun, 3 Dec 2017 16:01:47 +0000 (11:01 -0500)]
Linux 4.15-rc2
Linus Torvalds [Sun, 3 Dec 2017 15:51:08 +0000 (10:51 -0500)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fix from Russell King:
"Just one fix this time around, for the late commit in the merge window
that triggered a problem with qemu. Qemu is apparently also going to
receive a fix for the discovered issue"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: avoid faulting on qemu
Linus Torvalds [Sun, 3 Dec 2017 15:48:24 +0000 (10:48 -0500)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Here are two bugfixes for I2C, fixing a memleak in the core and irq
allocation for i801.
Also three bugfixes for the at24 eeprom driver which Bartosz collected
while taking over maintainership for this driver"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
eeprom: at24: check at24_read/write arguments
eeprom: at24: fix reading from 24MAC402/24MAC602
eeprom: at24: correctly set the size for at24mac402
i2c: i2c-boardinfo: fix memory leaks on devinfo
i2c: i801: Fix Failed to allocate irq -
2147483648 error
Linus Torvalds [Sun, 3 Dec 2017 15:46:16 +0000 (10:46 -0500)]
Merge tag 'hwmon-for-linus-v4.15-rc2' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fixes:
- Drop reference to obsolete maintainer tree
- Fix overflow bug in pmbus driver
- Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this
should be considered a bug fix or a feature. Peter says "it fixes real
problems where the application misbehave due to faulty content when
reading from an eeprom", and he needs the patch in his company's v4.14
images. This is good enough for me and warrants backport to stable
kernels"
* tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) optionally try to disable the SMBUS timeout
hwmon: (pmbus) Use 64bit math for DIRECT format values
hwmon: Drop reference to Jean's tree
Wolfram Sang [Sat, 2 Dec 2017 22:32:13 +0000 (23:32 +0100)]
Merge tag 'at24-4.15-fixes-for-wolfram' of git://git./linux/kernel/git/brgl/linux into i2c/for-current
Please consider pulling the following fixes for v4.15. While it doesn't
fix any regression introduced in the v4.15 merge window, we have a
feature in at24 since linux v4.8 - reading the mac address block from
at24mac series - which turned out to be not working.
This pull request contains changes that fix it together with a patch
that hardens the read and write argument sanitization with
out-of-bounds checks that were missing.
Linus Torvalds [Sat, 2 Dec 2017 01:04:20 +0000 (20:04 -0500)]
Merge tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"These patches fix a problem with compiling using an old version of
gcc, and also fix up error handling in the SUNRPC layer.
- NFSv4: Ensure gcc 4.4.4 can compile initialiser for
"invalid_stateid"
- SUNRPC: Allow connect to return EHOSTUNREACH
- SUNRPC: Handle ENETDOWN errors"
* tag 'nfs-for-4.15-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: Handle ENETDOWN errors
SUNRPC: Allow connect to return EHOSTUNREACH
NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid"
Linus Torvalds [Sat, 2 Dec 2017 01:00:19 +0000 (20:00 -0500)]
Merge tag 'xfs-4.15-fixes-4' of git://git./fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are some bug fixes for 4.15-rc2.
- fix memory leaks that appeared after removing ifork inline data
buffer
- recover deferred rmap update log items in correct order
- fix memory leaks when buffer construction fails
- fix memory leaks when bmbt is corrupt
- fix some uninitialized variables and math problems in the quota
scrubber
- add some omitted attribution tags on the log replay commit
- fix some UBSAN complaints about integer overflows with large sparse
files
- implement an effective inode mode check in online fsck
- fix log's inability to retry quota item writeout due to transient
errors"
* tag 'xfs-4.15-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: Properly retry failed dquot items in case of error during buffer writeback
xfs: scrub inode mode properly
xfs: remove unused parameter from xfs_writepage_map
xfs: ubsan fixes
xfs: calculate correct offset in xfs_scrub_quota_item
xfs: fix uninitialized variable in xfs_scrub_quota
xfs: fix leaks on corruption errors in xfs_bmap.c
xfs: fortify xfs_alloc_buftarg error handling
xfs: log recovery should replay deferred ops in order
xfs: always free inline data before resetting inode fork during ifree
Linus Torvalds [Sat, 2 Dec 2017 00:39:12 +0000 (19:39 -0500)]
Merge tag 'riscv-for-linus-4.15-rc2_cleanups' of git://git./linux/kernel/git/palmer/linux
Pull RISC-V cleanups and ABI fixes from Palmer Dabbelt:
"This contains a handful of small cleanups that are a result of
feedback that didn't make it into our original patch set, either
because the feedback hadn't been given yet, I missed the original
emails, or we weren't ready to submit the changes yet.
I've been maintaining the various cleanup patch sets I have as their
own branches, which I then merged together and signed. Each merge
commit has a short summary of the changes, and each branch is based on
your latest tag (4.15-rc1, in this case). If this isn't the right way
to do this then feel free to suggest something else, but it seems sane
to me.
Here's a short summary of the changes, roughly in order of how
interesting they are.
- libgcc.h has been moved from include/lib, where it's the only
member, to include/linux. This is meant to avoid tab completion
conflicts.
- VDSO entries for clock_get/gettimeofday/getcpu have been added.
These are simple syscalls now, but we want to let glibc use them
from the start so we can make them faster later.
- A VDSO entry for instruction cache flushing has been added so
userspace can flush the instruction cache.
- The VDSO symbol versions for __vdso_cmpxchg{32,64} have been
removed, as those VDSO entries don't actually exist.
- __io_writes has been corrected to respect the given type.
- A new READ_ONCE in arch_spin_is_locked().
- __test_and_op_bit_ord() is now actually ordered.
- Various small fixes throughout the tree to enable allmodconfig to
build cleanly.
- Removal of some dead code in our atomic support headers.
- Improvements to various comments in our atomic support headers"
* tag 'riscv-for-linus-4.15-rc2_cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux: (23 commits)
RISC-V: __io_writes should respect the length argument
move libgcc.h to include/linux
RISC-V: Clean up an unused include
RISC-V: Allow userspace to flush the instruction cache
RISC-V: Flush I$ when making a dirty page executable
RISC-V: Add missing include
RISC-V: Use define for get_cycles like other architectures
RISC-V: Provide stub of setup_profiling_timer()
RISC-V: Export some expected symbols for modules
RISC-V: move empty_zero_page definition to C and export it
RISC-V: io.h: type fixes for warnings
RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros
RISC-V: use generic serial.h
RISC-V: remove spin_unlock_wait()
RISC-V: `sfence.vma` orderes the instruction cache
RISC-V: Add READ_ONCE in arch_spin_is_locked()
RISC-V: __test_and_op_bit_ord should be strongly ordered
RISC-V: Remove smb_mb__{before,after}_spinlock()
RISC-V: Remove __smp_bp__{before,after}_atomic
RISC-V: Comment on why {,cmp}xchg is ordered how it is
...
Linus Torvalds [Sat, 2 Dec 2017 00:37:03 +0000 (19:37 -0500)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The critical one here is a fix for fpsimd register corruption across
signals which was introduced by the SVE support code (the register
files overlap), but the others are worth having as well.
Summary:
- Fix FP register corruption when SVE is not available or in use
- Fix out-of-tree module build failure when CONFIG_ARM64_MODULE_PLTS=y
- Missing 'const' generating errors with LTO builds
- Remove unsupported events from Cortex-A73 PMU description
- Removal of stale and incorrect comments"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: context: Fix comments and remove pointless smp_wmb()
arm64: cpu_ops: Add missing 'const' qualifiers
arm64: perf: remove unsupported events for Cortex-A73
arm64: fpsimd: Fix failure to restore FPSIMD state after signals
arm64: pgd: Mark pgd_cache as __ro_after_init
arm64: ftrace: emit ftrace-mod.o contents through code
arm64: module-plts: factor out PLT generation code for ftrace
arm64: mm: cleanup stale AIVIVT references
Palmer Dabbelt [Fri, 1 Dec 2017 21:31:31 +0000 (13:31 -0800)]
RISC-V: Fixes for clean allmodconfig build
Olaf said: Here's a short series of patches that produces a working
allmodconfig. Would be nice to see them go in so we can add build
coverage.
I've dropped patches 8 and 10 from the original set:
* [PATCH 08/10] (RISC-V: Set __ARCH_WANT_RENAMEAT to pick up generic
version) has a better fix that I've sent out for review, we don't want
renameat.
* [PATCH 10/10] (input: joystick: riscv has get_cycles) has already been
taken into Dmitry Torokhov's tree.
Palmer Dabbelt [Fri, 1 Dec 2017 21:16:15 +0000 (13:16 -0800)]
move libgcc.h to include/linux
Palmer Dabbelt [Fri, 1 Dec 2017 21:14:36 +0000 (13:14 -0800)]
RISC-V: __io_writes should respect the length argument
Palmer Dabbelt [Fri, 1 Dec 2017 21:12:10 +0000 (13:12 -0800)]
RISC-V: User-Visible Changes
This merge contains the user-visible, ABI-breaking changes that we want
to make sure we have in Linux before our first release. Highlights
include:
* VDSO entries for clock_get/gettimeofday/getcpu have been added. These
are simple syscalls now, but we want to let glibc use them from the
start so we can make them faster later.
* A VDSO entry for instruction cache flushing has been added so
userspace can flush the instruction cache.
* The VDSO symbol versions for __vdso_cmpxchg{32,64} have been removed,
as those VDSO entries don't actually exist.
Conflicts:
arch/riscv/include/asm/tlbflush.h
Palmer Dabbelt [Fri, 1 Dec 2017 21:10:42 +0000 (13:10 -0800)]
RISC-V Atomic Cleanups
This patch set is the result of some feedback that filtered through
after our original patch set was reviewed, some of which was the result
of me missing some email. It contains:
* A new READ_ONCE in arch_spin_is_locked()
* __test_and_op_bit_ord() is now actually ordered
* Improvements to various comments
* Removal of some dead code
Palmer Dabbelt [Tue, 28 Nov 2017 22:15:32 +0000 (14:15 -0800)]
RISC-V: __io_writes should respect the length argument
Whoops -- I must have just been being an idiot again. Thanks to Segher
for finding the bug :).
CC: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Christoph Hellwig [Wed, 22 Nov 2017 10:47:28 +0000 (11:47 +0100)]
move libgcc.h to include/linux
Introducing a new include/lib directory just for this file totally
messes up tab completion for include/linux, which is highly annoying.
Move it to include/linux where we have headers for all kinds of other
lib/ code as well.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Linus Torvalds [Fri, 1 Dec 2017 13:40:17 +0000 (08:40 -0500)]
Merge tag 'powerpc-4.15-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two fixes for nasty kexec/kdump crashes in certain configurations.
A couple of minor fixes for the new TIDR code.
A fix for an oops in a CXL error handling path.
Thanks to: Andrew Donnellan, Christophe Lombard, David Gibson, Mahesh
Salgaonkar, Vaibhav Jain"
* tag 'powerpc-4.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Do not assign thread.tidr if already assigned
powerpc: Avoid signed to unsigned conversion in set_thread_tidr()
powerpc/kexec: Fix kexec/kdump in P9 guest kernels
powerpc/powernv: Fix kexec crashes caused by tlbie tracing
cxl: Check if vphb exists before iterating over AFU devices
Linus Torvalds [Fri, 1 Dec 2017 13:36:27 +0000 (08:36 -0500)]
Merge tag 'afs-fixes-
20171201' of git://git./linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
"Two fix patches for the AFS filesystem:
- Fix the refcounting on permit caching.
- AFS inode (afs_vnode) fields need resetting after allocation
because they're only initialised when slab pages are obtained from
the page allocator"
* tag 'afs-fixes-
20171201' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Properly reset afs_vnode (inode) fields
afs: Fix permit refcounting
Linus Torvalds [Fri, 1 Dec 2017 13:14:22 +0000 (08:14 -0500)]
Merge tag 'mmc-v4.15-2' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Ensure that debugfs files are removed properly
- Fix missing blk_put_request()
- Deal with errors from blk_get_request()
- Rewind mmc bus suspend operations at failures
- Prepend '0x' to ocr and pre_eol_info in sysfs to identify as hex
MMC host:
- sdhci-msm: Make it optional to wait for signal level changes
- sdhci: Avoid swiotlb buffer being full"
* tag 'mmc-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: core: prepend 0x to OCR entry in sysfs
mmc: core: prepend 0x to pre_eol_info entry in sysfs
mmc: sdhci: Avoid swiotlb buffer being full
mmc: sdhci-msm: Optionally wait for signal level changes
mmc: block: Ensure that debugfs files are removed
mmc: core: Do not leave the block driver in a suspended state
mmc: block: Check return value of blk_get_request()
mmc: block: Fix missing blk_put_request()
Linus Torvalds [Fri, 1 Dec 2017 13:10:09 +0000 (08:10 -0500)]
Merge tag 'drm-fixes-for-v4.15-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes and cleanups from Dave Airlie:
"The main thing are a bunch of fixes for the new amd display code, a
bunch of smatch fixes.
core:
- Atomic helper regression fix.
- Deferred fbdev fallout regression fix.
amdgpu:
- New display code (dc) dpms, suspend/resume and smatch fixes, along
with some others
- Some regression fixes for amdkfd/radeon.
- Fix a ttm regression for swiotlb disabled
bridge:
- A bunch of fixes for the tc358767 bridge
mali-dp + hdlcd:
- some fixes and internal API catchups.
imx-drm:
-regression fix in atomic code.
omapdrm:
- platform detection regression fixes"
* tag 'drm-fixes-for-v4.15-rc2' of git://people.freedesktop.org/~airlied/linux: (76 commits)
drm/imx: always call wait_for_flip_done in commit_tail
omapdrm: hdmi4_cec: signedness bug in hdmi4_cec_init()
drm: omapdrm: Fix DPI on platforms using the DSI VDDS
omapdrm: hdmi4: Correct the SoC revision matching
drm/omap: displays: panel-dpi: add backlight dependency
drm/omap: Fix error handling path in 'omap_dmm_probe()'
drm/i915: Disable THP until we have a GPU read BW W/A
drm/bridge: tc358767: fix 1-lane behavior
drm/bridge: tc358767: fix AUXDATAn registers access
drm/bridge: tc358767: fix timing calculations
drm/bridge: tc358767: fix DP0_MISC register set
drm/bridge: tc358767: filter out too high modes
drm/bridge: tc358767: do no fail on hi-res displays
drm/bridge: Fix lvds-encoder since the panel_bridge rework.
drm/bridge: synopsys/dw-hdmi: Enable cec clock
drm/bridge: adv7511/33: Fix adv7511_cec_init() failure handling
drm/radeon: remove init of CIK VMIDs 8-16 for amdkfd
drm/ttm: fix populate_and_map() functions once more
drm/fb_helper: Disable all crtc's when initial setup fails.
drm/atomic: make drm_atomic_helper_wait_for_vblanks more agressive
...
Linus Torvalds [Fri, 1 Dec 2017 13:05:45 +0000 (08:05 -0500)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A selection of fixes/changes that should make it into this series.
This contains:
- NVMe, two merges, containing:
- pci-e, rdma, and fc fixes
- Device quirks
- Fix for a badblocks leak in null_blk
- bcache fix from Rui Hua for a race condition regression where
-EINTR was returned to upper layers that didn't expect it.
- Regression fix for blktrace for a bug introduced in this series.
- blktrace cleanup for cgroup id.
- bdi registration error handling.
- Small series with cleanups for blk-wbt.
- Various little fixes for typos and the like.
Nothing earth shattering, most important are the NVMe and bcache fixes"
* 'for-linus' of git://git.kernel.dk/linux-block: (34 commits)
nvme-pci: fix NULL pointer dereference in nvme_free_host_mem()
nvme-rdma: fix memory leak during queue allocation
blktrace: fix trace mutex deadlock
nvme-rdma: Use mr pool
nvme-rdma: Check remotely invalidated rkey matches our expected rkey
nvme-rdma: wait for local invalidation before completing a request
nvme-rdma: don't complete requests before a send work request has completed
nvme-rdma: don't suppress send completions
bcache: check return value of register_shrinker
bcache: recover data from backing when data is clean
bcache: Fix building error on MIPS
bcache: add a comment in journal bucket reading
nvme-fc: don't use bit masks for set/test_bit() numbers
blk-wbt: fix comments typo
blk-wbt: move wbt_clear_stat to common place in wbt_done
blk-sysfs: remove NULL pointer checking in queue_wb_lat_store
blk-wbt: remove duplicated setting in wbt_init
nvme-pci: add quirk for delay before CHK RDY for WDC SN200
block: remove useless assignment in bio_split
null_blk: fix dev->badblocks leak
...
Will Deacon [Thu, 30 Nov 2017 18:25:17 +0000 (18:25 +0000)]
arm64: context: Fix comments and remove pointless smp_wmb()
The comments in the ASID allocator incorrectly hint at an MP-style idiom
using the asid_generation and the active_asids array. In fact, the
synchronisation is achieved using a combination of an xchg operation
and a spinlock, so update the comments and remove the pointless smp_wmb().
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Yury Norov [Wed, 29 Nov 2017 14:03:03 +0000 (17:03 +0300)]
arm64: cpu_ops: Add missing 'const' qualifiers
Building the kernel with an LTO-enabled GCC spits out the following "const"
warning for the cpu_ops code:
mm/percpu.c:2168:20: error: pcpu_fc_names causes a section type conflict
with dt_supported_cpu_ops
const char * const pcpu_fc_names[PCPU_FC_NR] __initconst = {
^
arch/arm64/kernel/cpu_ops.c:34:37: note: ‘dt_supported_cpu_ops’ was declared here
static const struct cpu_operations *dt_supported_cpu_ops[] __initconst = {
Fix it by adding missed const qualifiers.
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Xu YiPing [Wed, 15 Nov 2017 07:39:26 +0000 (15:39 +0800)]
arm64: perf: remove unsupported events for Cortex-A73
bus access read/write events are not supported in A73, based on the
Cortex-A73 TRM r0p2, section 11.9 Events (pages 11-457 to 11-460).
Fixes:
5561b6c5e981 "arm64: perf: add support for Cortex-A73"
Acked-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Dave Martin [Thu, 30 Nov 2017 11:56:37 +0000 (11:56 +0000)]
arm64: fpsimd: Fix failure to restore FPSIMD state after signals
The fpsimd_update_current_state() function is responsible for
loading the FPSIMD state from the user signal frame into the
current task during sigreturn. When implementing support for SVE,
conditional code was added to this function in order to handle the
case where SVE state need to be loaded for the task and merged with
the FPSIMD data from the signal frame; however, the FPSIMD-only
case was unintentionally dropped.
As a result of this, sigreturn does not currently restore the
FPSIMD state of the task, except in the case where the system
supports SVE and the signal frame contains SVE state in addition to
FPSIMD state.
This patch fixes this bug by making the copy-in of the FPSIMD data
from the signal frame to thread_struct unconditional.
This remains a performance regression from v4.14, since the FPSIMD
state is now copied into thread_struct and then loaded back,
instead of _only_ being loaded into the CPU FPSIMD registers.
However, it is essential to call task_fpsimd_load() here anyway in
order to ensure that the SVE enable bit in CPACR_EL1 is set
correctly before returning to userspace. This could use some
refactoring, but since sigreturn is not a fast path I have kept
this patch as a pure fix and left the refactoring for later.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes:
8cd969d28fd2 ("arm64/sve: Signal handling support")
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Jinbum Park [Wed, 22 Nov 2017 12:43:59 +0000 (21:43 +0900)]
arm64: pgd: Mark pgd_cache as __ro_after_init
pgd_cache is setup once while init stage and never changed after
that, so it is good candidate for __ro_after_init
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Ard Biesheuvel [Mon, 20 Nov 2017 17:41:30 +0000 (17:41 +0000)]
arm64: ftrace: emit ftrace-mod.o contents through code
When building the arm64 kernel with both CONFIG_ARM64_MODULE_PLTS and
CONFIG_DYNAMIC_FTRACE enabled, the ftrace-mod.o object file is built
with the kernel and contains a trampoline that is linked into each
module, so that modules can be loaded far away from the kernel and
still reach the ftrace entry point in the core kernel with an ordinary
relative branch, as is emitted by the compiler instrumentation code
dynamic ftrace relies on.
In order to be able to build out of tree modules, this object file
needs to be included into the linux-headers or linux-devel packages,
which is undesirable, as it makes arm64 a special case (although a
precedent does exist for 32-bit PPC).
Given that the trampoline essentially consists of a PLT entry, let's
not bother with a source or object file for it, and simply patch it
in whenever the trampoline is being populated, using the existing
PLT support routines.
Cc: <stable@vger.kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Ard Biesheuvel [Mon, 20 Nov 2017 17:41:29 +0000 (17:41 +0000)]
arm64: module-plts: factor out PLT generation code for ftrace
To allow the ftrace trampoline code to reuse the PLT entry routines,
factor it out and move it into asm/module.h.
Cc: <stable@vger.kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
David Howells [Fri, 1 Dec 2017 11:40:43 +0000 (11:40 +0000)]
afs: Properly reset afs_vnode (inode) fields
When an AFS inode is allocated by afs_alloc_inode(), the allocated
afs_vnode struct isn't necessarily reset from the last time it was used as
an inode because the slab constructor is only invoked once when the memory
is obtained from the page allocator.
This means that information can leak from one inode to the next because
we're not calling kmem_cache_zalloc(). Some of the information isn't
reset, in particular the permit cache pointer.
Bring the clearances up to date.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
David Howells [Fri, 1 Dec 2017 11:40:43 +0000 (11:40 +0000)]
afs: Fix permit refcounting
Fix four refcount bugs in afs_cache_permit():
(1) When checking the result of the kzalloc(), we can't just return, but
must put 'permits'.
(2) We shouldn't put permits immediately after hashing a new permit as we
need to keep the pointer stable so that we can check to see if
vnode->permit_cache has changed before we decide whether to assign to
it.
(3) 'permits' is being put twice.
(4) We need to put either the replacement or the thing replaced after the
assignment to vnode->permit_cache.
Without this, lots of the following are seen:
Kernel BUG at
ffffffffa039857b [verbose debug info unavailable]
------------[ cut here ]------------
Kernel BUG at
ffffffffa039858a [verbose debug info unavailable]
------------[ cut here ]------------
The addresses are in the .text..refcount section of the kafs.ko module.
Following the relocation records for the __ex_table section shows one to be
due to the decrement in afs_put_permits() and the other to be key_get() in
afs_cache_permit().
Occasionally, the following is seen:
refcount_t overflow at afs_cache_permit+0x57d/0x5c0 [kafs] in cc1[562], uid/euid: 0/0
WARNING: CPU: 0 PID: 562 at kernel/panic.c:657 refcount_error_report+0x9c/0xac
...
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
Linus Torvalds [Thu, 30 Nov 2017 23:56:41 +0000 (18:56 -0500)]
Merge tag 'apparmor-pr-2017-11-30' of git://git./linux/kernel/git/jj/linux-apparmor
Pull apparmor bugfix from John Johansen:
"Fix oops in audit_signal_cb hook marked for stable"
* tag 'apparmor-pr-2017-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: fix oops in audit_signal_cb hook
Linus Torvalds [Thu, 30 Nov 2017 23:49:50 +0000 (18:49 -0500)]
Merge tag 'acpi-4.15-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix a regression related to the ACPI EC handling during system
suspend/resume on some platforms and prevent modalias from being
exposed to user space for ACPI device object with "not functional and
not present" status.
Specifics:
- Fix an ACPI EC driver regression (from the 4.9 cycle) causing the
driver's power management operations to be omitted during system
suspend/resume on platforms where the EC instance from the ECDT
table is used instead of the one from the DSDT (Lv Zheng).
- Prevent modalias from being exposed to user space for ACPI device
objects with _STA returning 0 (not present and not functional) to
prevent driver modules from being loaded automatically for hardware
that is not actually present on some platforms (Hans de Goede)"
* tag 'acpi-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / EC: Fix regression related to PM ops support in ECDT device
ACPI / bus: Leave modalias empty for devices which are not present
Linus Torvalds [Thu, 30 Nov 2017 23:45:55 +0000 (18:45 -0500)]
Merge tag 'pm-4.15-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
- add missing module information to the Mediatek cpufreq driver module
(Jesse Chan)
- fix config dependencies for the Loongson cpufreq driver (James Hogan)
- fix two issues related to CPU offline in the cpupower utility
(Abhishek Goel).
* tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: mediatek: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
cpufreq: Add Loongson machine dependencies
cpupower : Fix cpupower working when cpu0 is offline
cpupowerutils: bench - Fix cpu online check
Linus Torvalds [Thu, 30 Nov 2017 23:38:47 +0000 (18:38 -0500)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs
Pull quota & reiserfs changes from Jan Kara:
- two error checking improvements for quota
- remove bogus i_version increase for reiserfs
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: Check for register_shrinker() failure.
quota: propagate error from __dquot_initialize
reiserfs: remove unneeded i_version bump
Dave Airlie [Thu, 30 Nov 2017 23:15:57 +0000 (09:15 +1000)]
Merge branch 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Fixes for 4.15. Highlights:
- DC fixes for S3, gamma, audio, pageflipping, etc.
- fix a regression in radeon from kfd removal
- fix a ttm regression with swiotlb disabled
- misc other fixes
* 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux: (36 commits)
drm/radeon: remove init of CIK VMIDs 8-16 for amdkfd
drm/ttm: fix populate_and_map() functions once more
drm/amd/display: USB-C / thunderbolt dock specific workaround
drm/amd/display: Switch to drm_atomic_helper_wait_for_flip_done
drm/amd/display: fix gamma setting
drm/amd/display: Do not put drm_atomic_state on resume
drm/amd/display: Fix couple more inconsistent NULL checks in dc_resource
drm/amd/display: Fix potential NULL and mem leak in create_links
drm/amd/display: Fix hubp check in set_cursor_position
drm/amd/display: Fix use before NULL check in validate_timing
drm/amd/display: Bunch of smatch error and warning fixes in DC
drm/amd/display: Fix amdgpu_dm bugs found by smatch
drm/amd/display: try to find matching audio inst for enc inst first
drm/amd/display: fix seq issue: turn on clock before programming afmt.
drm/amd/display: fix memory leaks on error exit return
drm/amd/display: check plane state before validating fbc
drm/amd/display: Do DC mode-change check when adding CRTCs
drm/amd/display: Revert noisy assert messages
drm/amd/display: fix split viewport rounding error
drm/amd/display: Check aux channel before MST resume
...
Dave Airlie [Thu, 30 Nov 2017 23:15:31 +0000 (09:15 +1000)]
Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-fixes
mali-dp interface cleanups.
* 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld:
drm: mali-dp: Disable planes when their CRTC gets disabled.
drm: mali-dp: Separate static internal data into a read-only structure.
drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
drm: mali-dp: switch to drm_*_get(), drm_*_put() helpers
Dave Airlie [Thu, 30 Nov 2017 23:14:46 +0000 (09:14 +1000)]
Merge tag 'drm-amdkfd-fixes-2017-11-26' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
This is amdkfd pull request for -rc2. It contains three small fixes to the
CIK SDMA code, compilation error fix in kfd_ioctl.h and fix to accessing
a pointer after it was released.
* tag 'drm-amdkfd-fixes-2017-11-26' of git://people.freedesktop.org/~gabbayo/linux:
uapi: fix linux/kfd_ioctl.h userspace compilation errors
drm/amdkfd: fix amdkfd use-after-free GP fault
drm/amdkfd: Fix SDMA oversubsription handling
drm/amdkfd: Fix SDMA ring buffer size calculation
drm/amdgpu: Fix SDMA load/unload sequence on HWS disabled mode
Dave Airlie [Thu, 30 Nov 2017 23:14:18 +0000 (09:14 +1000)]
Merge branch 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld into drm-fixes
3 hdlcd fixes/cleanups
* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
drm: Fix checkpatch issue: "WARNING: braces {} are not necessary for single statement blocks."
drm: hdlcd: Update PM code to save/restore console.
Dave Airlie [Thu, 30 Nov 2017 23:11:13 +0000 (09:11 +1000)]
Merge tag 'imx-drm-fixes-2017-11-30' of git://git.pengutronix.de/git/pza/linux into drm-fixes
drm/imx: fix commit_tail for new drm_atomic_helper_setup_commit
Since commit
080de2e5be2d ("drm/atomic: Check for busy planes/connectors before
setting the commit"), drm_atomic_helper_setup_commit expects that blocking
commits have completed flipping before the commit_tail returns. Add the missing
wait_for_flip_done to commit_tail to ensure this.
* tag 'imx-drm-fixes-2017-11-30' of git://git.pengutronix.de/git/pza/linux:
drm/imx: always call wait_for_flip_done in commit_tail
Dave Airlie [Thu, 30 Nov 2017 23:10:32 +0000 (09:10 +1000)]
Merge tag 'drm-intel-fixes-2017-11-30' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Disable transparent huge pages for now until we have a W/A
- Building fix when CONFIG_BACKLIGHT_CLASS_DEVICE is not selected
- GMBUS communication robustness
- Fbdev hotplug handling fix
gvt-fixes-2017-11-28
- regression fix for sane request alloc (Fred)
- locking fix (Changbin)
- fix invalid addr mask (Xiong)
- compression regression fix (Weinan)
- fix default pipe enable for virtual display (Xiaolin)
* tag 'drm-intel-fixes-2017-11-30' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Disable THP until we have a GPU read BW W/A
drm/i915/gvt: Correct ADDR_4K/2M/1G_MASK definition
drm/i915/gvt: enabled pipe A default on creating vgpu
drm/i915/gvt: Move request alloc to dispatch_workload path only
drm/i915/gvt: remove skl_misc_ctl_write handler
drm/i915/gvt: Fix unsafe locking caused by spin_unlock_bh
drm/i915: fix intel_backlight_device_register declaration
drm/i915/fbdev: Serialise early hotplug events with async fbdev config
drm/i915: Prevent zero length "index" write
drm/i915: Don't try indexed reads to alternate slave addresses
Dave Airlie [Thu, 30 Nov 2017 23:09:52 +0000 (09:09 +1000)]
Merge tag 'omapdrm-4.15-fixes' of git://git./linux/kernel/git/tomba/linux into drm-fixes
omapdrm fixes for 4.15
* Fix platform detection issue causing OMAP3 DPI output to have missing color bits
* Fix platform detection issue causing OMAP4 HDMI audio not to work
* tag 'omapdrm-4.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
omapdrm: hdmi4_cec: signedness bug in hdmi4_cec_init()
drm: omapdrm: Fix DPI on platforms using the DSI VDDS
omapdrm: hdmi4: Correct the SoC revision matching
drm/omap: displays: panel-dpi: add backlight dependency
drm/omap: Fix error handling path in 'omap_dmm_probe()'
Dave Airlie [Thu, 30 Nov 2017 23:09:30 +0000 (09:09 +1000)]
Merge tag 'drm-misc-fixes-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for -rc2
- big pile of bridge driver (mostly tc358767), all handled by Archit
and Andrez
- rockchip dsi fix
- atomic helper regression fix for spurious -EBUSY (Maarten)
- fix deferred fbdev fallout (Maarten)
* tag 'drm-misc-fixes-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc:
drm/bridge: tc358767: fix 1-lane behavior
drm/bridge: tc358767: fix AUXDATAn registers access
drm/bridge: tc358767: fix timing calculations
drm/bridge: tc358767: fix DP0_MISC register set
drm/bridge: tc358767: filter out too high modes
drm/bridge: tc358767: do no fail on hi-res displays
drm/bridge: Fix lvds-encoder since the panel_bridge rework.
drm/bridge: synopsys/dw-hdmi: Enable cec clock
drm/bridge: adv7511/33: Fix adv7511_cec_init() failure handling
drm/fb_helper: Disable all crtc's when initial setup fails.
drm/atomic: make drm_atomic_helper_wait_for_vblanks more agressive
drm/rockchip: dw-mipi-dsi: fix possible un-balanced runtime PM enable
Peter Rosin [Mon, 27 Nov 2017 16:31:00 +0000 (17:31 +0100)]
hwmon: (jc42) optionally try to disable the SMBUS timeout
With a nxp,se97 chip on an atmel sama5d31 board, the I2C adapter driver
is not always capable of avoiding the 25-35 ms timeout as specified by
the SMBUS protocol. This may cause silent corruption of the last bit of
any transfer, e.g. a one is read instead of a zero if the sensor chip
times out. This also affects the eeprom half of the nxp-se97 chip, where
this silent corruption was originally noticed. Other I2C adapters probably
suffer similar issues, e.g. bit-banging comes to mind as risky...
The SMBUS register in the nxp chip is not a standard Jedec register, but
it is not special to the nxp chips either, at least the atmel chips
have the same mechanism. Therefore, do not special case this on the
manufacturer, it is opt-in via the device property anyway.
Cc: stable@vger.kernel.org # 4.9+
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Palmer Dabbelt [Tue, 21 Nov 2017 15:59:28 +0000 (07:59 -0800)]
RISC-V: Clean up an unused include
We used to have some cmpxchg syscalls. They're no longer there, so we
no longer need the include.
CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Andrew Waterman [Wed, 25 Oct 2017 21:32:16 +0000 (14:32 -0700)]
RISC-V: Allow userspace to flush the instruction cache
Despite RISC-V having a direct 'fence.i' instruction available to
userspace (which we can't trap!), that's not actually viable when
running on Linux because the kernel might schedule a process on another
hart. There is no way for userspace to handle this without invoking the
kernel (as it doesn't know the thread->hart mappings), so we've defined
a RISC-V specific system call to flush the instruction cache.
This patch adds both a system call and a VDSO entry. If possible, we'd
like to avoid having the system call be considered part of the
user-facing ABI and instead restrict that to the VDSO entry -- both just
in general to avoid having additional user-visible ABI to maintain, and
because we'd prefer that users just call the VDSO entry because there
might be a better way to do this in the future (ie, one that doesn't
require entering the kernel).
Signed-off-by: Andrew Waterman <andrew@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Andrew Waterman [Wed, 25 Oct 2017 21:30:32 +0000 (14:30 -0700)]
RISC-V: Flush I$ when making a dirty page executable
The RISC-V ISA allows for instruction caches that are not coherent WRT
stores, even on a single hart. As a result, we need to explicitly flush
the instruction cache whenever marking a dirty page as executable in
order to preserve the correct system behavior.
Local instruction caches aren't that scary (our implementations actually
flush the cache, but RISC-V is defined to allow higher-performance
implementations to exist), but RISC-V defines no way to perform an
instruction cache shootdown. When explicitly asked to do so we can
shoot down remote instruction caches via an IPI, but this is a bit on
the slow side.
Instead of requiring an IPI to all harts whenever marking a page as
executable, we simply flush the currently running harts. In order to
maintain correct behavior, we additionally mark every other hart as
needing a deferred instruction cache which will be taken before anything
runs on it.
Signed-off-by: Andrew Waterman <andrew@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:20 +0000 (17:55 -0800)]
RISC-V: Add missing include
Fixes:
include/asm-generic/mm_hooks.h:20:11: warning: 'struct vm_area_struct' declared inside parameter list will not be visible outside of this definition or declaration
include/asm-generic/mm_hooks.h:19:38: warning: 'struct mm_struct' declared inside parameter list will not be visible outside of this definition or declaration
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:18 +0000 (17:55 -0800)]
RISC-V: Use define for get_cycles like other architectures
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:17 +0000 (17:55 -0800)]
RISC-V: Provide stub of setup_profiling_timer()
Fixes the following on allmodconfig build:
profile.c:(.text+0x3e4): undefined reference to `setup_profiling_timer'
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:16 +0000 (17:55 -0800)]
RISC-V: Export some expected symbols for modules
These are the ones needed by current allmodconfig, so add them instead
of everything other architectures are exporting -- the rest can be
added on demand later if needed.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:15 +0000 (17:55 -0800)]
RISC-V: move empty_zero_page definition to C and export it
Needed by some modules (exported by other architectures).
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:14 +0000 (17:55 -0800)]
RISC-V: io.h: type fixes for warnings
include <linux/types.h> for __iomem definition. Also, add volatile to
iounmap() like other architectures have it to avoid "discarding
volatile" warnings from some drivers.
Finally, explicitly promote the base address for INB/OUTB functions to
avoid some old legacy drivers complaining about int-to-ptr promotions.
The drivers are unlikely to work but they're included in allmodconfig
so the warnings are noisy.
Fixes, among other warnings, these with allmodconfig:
../arch/riscv/include/asm/io.h:24:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
extern void __iomem *ioremap(phys_addr_t offset, unsigned long size);
sound/pci/echoaudio/echoaudio.c: In function 'snd_echo_free':
sound/pci/echoaudio/echoaudio.c:1879:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers]
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:13 +0000 (17:55 -0800)]
RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros
INT and SHORT are used by some drivers that pull in the include files,
so prefixing helps avoid namespace conflicts. Other constructs in the
same file already uses this.
Fixes, among others, these warnings with allmodconfig:
../sound/core/pcm_misc.c:43:0: warning: "INT" redefined
#define INT __force int
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Olof Johansson [Thu, 30 Nov 2017 01:55:12 +0000 (17:55 -0800)]
RISC-V: use generic serial.h
Fixes this from allmodconfig:
drivers/tty/serial/earlycon.c:27:10: fatal error: asm/serial.h: No such file or directory
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Trond Myklebust [Thu, 30 Nov 2017 12:21:33 +0000 (07:21 -0500)]
SUNRPC: Handle ENETDOWN errors
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Carlos Maiolino [Tue, 28 Nov 2017 16:54:10 +0000 (08:54 -0800)]
xfs: Properly retry failed dquot items in case of error during buffer writeback
Once the inode item writeback errors is already fixed, it's time to fix the same
problem in dquot code.
Although there were no reports of users hitting this bug in dquot code (at least
none I've seen), the bug is there and I was already planning to fix it when the
correct approach to fix the inodes part was decided.
This patch aims to fix the same problem in dquot code, regarding failed buffers
being unable to be resubmitted once they are flush locked.
Tested with the recently test-case sent to fstests list by Hou Tao.
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Darrick J. Wong [Tue, 28 Nov 2017 05:40:19 +0000 (21:40 -0800)]
xfs: scrub inode mode properly
Since we've used up all the bits in i_mode, the existing mode check
doesn't actually do anything useful. However, we've not used all the
bit values in the format portion of i_mode, so we /do/ need to test
that for bad values.
Fixes:
80e4e1268 ("xfs: scrub inodes")
Fixes-coverity-id: 1423992
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Darrick J. Wong [Mon, 27 Nov 2017 17:50:22 +0000 (09:50 -0800)]
xfs: remove unused parameter from xfs_writepage_map
The first thing that xfs_writepage_map does is clobber the offset
parameter. Since we never use the passed-in value, turn the parameter
into a local variable. This gets rid of an UBSAN warning in generic/466.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Darrick J. Wong [Mon, 27 Nov 2017 17:50:17 +0000 (09:50 -0800)]
xfs: ubsan fixes
Fix some complaints from the UBSAN about signed integer addition overflows.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Linus Torvalds [Thu, 30 Nov 2017 16:15:19 +0000 (08:15 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
- x86 bugfixes: APIC, nested virtualization, IOAPIC
- PPC bugfix: HPT guests on a POWER9 radix host
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits)
KVM: Let KVM_SET_SIGNAL_MASK work as advertised
KVM: VMX: Fix vmx->nested freeing when no SMI handler
KVM: VMX: Fix rflags cache during vCPU reset
KVM: X86: Fix softlockup when get the current kvmclock
KVM: lapic: Fixup LDR on load in x2apic
KVM: lapic: Split out x2apic ldr calculation
KVM: PPC: Book3S HV: Fix migration and HPT resizing of HPT guests on radix hosts
KVM: vmx: use X86_CR4_UMIP and X86_FEATURE_UMIP
KVM: x86: Fix CPUID function for word 6 (80000001_ECX)
KVM: nVMX: Fix vmx_check_nested_events() return value in case an event was reinjected to L2
KVM: x86: ioapic: Preserve read-only values in the redirection table
KVM: x86: ioapic: Clear Remote IRR when entry is switched to edge-triggered
KVM: x86: ioapic: Remove redundant check for Remote IRR in ioapic_set_irq
KVM: x86: ioapic: Don't fire level irq when Remote IRR set
KVM: x86: ioapic: Fix level-triggered EOI and IOAPIC reconfigure race
KVM: x86: inject exceptions produced by x86_decode_insn
KVM: x86: Allow suppressing prints on RDMSR/WRMSR of unhandled MSRs
KVM: x86: fix em_fxstor() sleeping while in atomic
KVM: nVMX: Fix mmu context after VMLAUNCH/VMRESUME failure
KVM: nVMX: Validate the IA32_BNDCFGS on nested VM-entry
...
Linus Torvalds [Thu, 30 Nov 2017 16:13:36 +0000 (08:13 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
- SPDX identifiers are added to more of the s390 specific files.
- The ELF_ET_DYN_BASE base patch from Kees is reverted, with the change
some old 31-bit programs crash.
- Bug fixes and cleanups.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (29 commits)
s390/gs: add compat regset for the guarded storage broadcast control block
s390: revert ELF_ET_DYN_BASE base changes
s390: Remove redundant license text
s390: crypto: Remove redundant license text
s390: include: Remove redundant license text
s390: kernel: Remove redundant license text
s390: add SPDX identifiers to the remaining files
s390: appldata: add SPDX identifiers to the remaining files
s390: pci: add SPDX identifiers to the remaining files
s390: mm: add SPDX identifiers to the remaining files
s390: crypto: add SPDX identifiers to the remaining files
s390: kernel: add SPDX identifiers to the remaining files
s390: sthyi: add SPDX identifiers to the remaining files
s390: drivers: Remove redundant license text
s390: crypto: Remove redundant license text
s390: virtio: add SPDX identifiers to the remaining files
s390: scsi: zfcp_aux: add SPDX identifier
s390: net: add SPDX identifiers to the remaining files
s390: char: add SPDX identifiers to the remaining files
s390: cio: add SPDX identifiers to the remaining files
...
Lucas Stach [Thu, 30 Nov 2017 13:31:46 +0000 (14:31 +0100)]
drm/imx: always call wait_for_flip_done in commit_tail
drm_atomic_helper_wait_for_vblanks will go away in the future.
The new drm_atomic_helper_setup_commit in 4.15 expects that blocking commits
have completed flipping before the commit_tail returns. This must be ensured
by calling wait_for_vblanks or wait_for_flip_done, where flip_done might do
a less agressive wait, which is fine for imx-drm.
Fixes:
080de2e5be2d (drm/atomic: Check for busy planes/connectors before
setting the commit)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Rafael J. Wysocki [Thu, 30 Nov 2017 12:37:29 +0000 (13:37 +0100)]
Merge branch 'acpi-ec' into acpi
* acpi-ec:
ACPI / EC: Fix regression related to PM ops support in ECDT device
Rafael J. Wysocki [Thu, 30 Nov 2017 12:29:56 +0000 (13:29 +0100)]
Merge branch 'pm-tools'
* pm-tools:
cpupower : Fix cpupower working when cpu0 is offline
cpupowerutils: bench - Fix cpu online check
Dan Carpenter [Fri, 27 Oct 2017 06:27:05 +0000 (09:27 +0300)]
omapdrm: hdmi4_cec: signedness bug in hdmi4_cec_init()
"ret" needs to be signed for the error handling to work.
Fixes:
8d7f934df8d8 ("omapdrm: hdmi4_cec: add OMAP4 HDMI CEC support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>