qed (gcc13): use u16 for fid to be big enough
authorJiri Slaby (SUSE) <jirislaby@kernel.org>
Mon, 31 Oct 2022 11:43:54 +0000 (12:43 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 31 Dec 2022 12:33:00 +0000 (13:33 +0100)
[ Upstream commit 7d84118229bf7f7290438c85caa8e49de52d50c1 ]

gcc 13 correctly reports overflow in qed_grc_dump_addr_range():
In file included from drivers/net/ethernet/qlogic/qed/qed.h:23,
                 from drivers/net/ethernet/qlogic/qed/qed_debug.c:10:
drivers/net/ethernet/qlogic/qed/qed_debug.c: In function 'qed_grc_dump_addr_range':
include/linux/qed/qed_if.h:1217:9: error: overflow in conversion from 'int' to 'u8' {aka 'unsigned char'} changes value from '(int)vf_id << 8 | 128' to '128' [-Werror=overflow]

We do:
  u8 fid;
  ...
  fid = vf_id << 8 | 128;

Since fid is 16bit (and the stored value above too), fid should be u16,
not u8. Fix that.

Cc: Martin Liska <mliska@suse.cz>
Cc: Ariel Elior <aelior@marvell.com>
Cc: Manish Chopra <manishc@marvell.com>
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20221031114354.10398-1-jirislaby@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/qlogic/qed/qed_debug.c

index 5250d1d..86ecb08 100644 (file)
@@ -1972,9 +1972,10 @@ static u32 qed_grc_dump_addr_range(struct qed_hwfn *p_hwfn,
                                   u8 split_id)
 {
        struct dbg_tools_data *dev_data = &p_hwfn->dbg_info;
-       u8 port_id = 0, pf_id = 0, vf_id = 0, fid = 0;
+       u8 port_id = 0, pf_id = 0, vf_id = 0;
        bool read_using_dmae = false;
        u32 thresh;
+       u16 fid;
 
        if (!dump)
                return len;