Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...

[platform/kernel/linux-rpi.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 2aed316..7f44429 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -164,7 +164,7 @@ config DEBUG_INFO_REDUCED
 
 config DEBUG_INFO_SPLIT
        bool "Produce split debuginfo in .dwo files"
-       depends on DEBUG_INFO
+       depends on DEBUG_INFO && !FRV
        help
          Generate debug info into separate .dwo files. This significantly
          reduces the build directory size for builds with DEBUG_INFO,
@@ -719,6 +719,19 @@ source "lib/Kconfig.kmemcheck"
 
 source "lib/Kconfig.kasan"
 
+config DEBUG_REFCOUNT
+       bool "Verbose refcount checks"
+       help
+         Say Y here if you want reference counters (refcount_t and kref) to
+         generate WARNs on dubious usage. Without this refcount_t will still
+         be a saturating counter and avoid Use-After-Free by turning it into
+         a resource leak Denial-Of-Service.
+
+         Use of this option will increase kernel text size but will alert the
+         admin of potential abuse.
+
+         If in doubt, say "N".
+
 endmenu # "Memory Debugging"
 
 config ARCH_HAS_KCOV
@@ -983,20 +996,6 @@ config DEBUG_TIMEKEEPING
 
          If unsure, say N.
 
-config TIMER_STATS
-       bool "Collect kernel timers statistics"
-       depends on DEBUG_KERNEL && PROC_FS
-       help
-         If you say Y here, additional code will be inserted into the
-         timer routines to collect statistics about kernel timers being
-         reprogrammed. The statistics can be read from /proc/timer_stats.
-         The statistics collection is started by writing 1 to /proc/timer_stats,
-         writing 0 stops it. This feature is useful to collect information
-         about timer usage patterns in kernel and userspace. This feature
-         is lightweight if enabled in the kernel config but not activated
-         (it defaults to deactivated on bootup and will only be activated
-         if some application like powertop activates it explicitly).
-
 config DEBUG_PREEMPT
        bool "Debug preemptible kernel"
        depends on DEBUG_KERNEL && PREEMPT && TRACE_IRQFLAGS_SUPPORT
@@ -1183,6 +1182,18 @@ config LOCK_TORTURE_TEST
          Say M if you want these torture tests to build as a module.
          Say N if you are unsure.
 
+config WW_MUTEX_SELFTEST
+       tristate "Wait/wound mutex selftests"
+       help
+         This option provides a kernel module that runs tests on the
+         on the struct ww_mutex locking API.
+
+         It is recommended to enable DEBUG_WW_MUTEX_SLOWPATH in conjunction
+         with this test harness.
+
+         Say M if you want these self tests to build as a module.
+         Say N if you are unsure.
+
 endmenu # lock debugging
 
 config TRACE_IRQFLAGS
@@ -1453,6 +1464,7 @@ config RCU_CPU_STALL_TIMEOUT
 config RCU_TRACE
        bool "Enable tracing for RCU"
        depends on DEBUG_KERNEL
+       default y if TREE_RCU
        select TRACE_CLOCK
        help
          This option provides tracing in RCU which presents stats
@@ -1822,13 +1834,23 @@ config TEST_HASH
        tristate "Perform selftest on hash functions"
        default n
        help
-         Enable this option to test the kernel's integer (<linux/hash,h>)
-         and string (<linux/stringhash.h>) hash functions on boot
-         (or module load).
+         Enable this option to test the kernel's integer (<linux/hash.h>),
+         string (<linux/stringhash.h>), and siphash (<linux/siphash.h>)
+         hash functions on boot (or module load).
 
          This is intended to help people writing architecture-specific
          optimized versions.  If unsure, say N.
 
+config TEST_PARMAN
+       tristate "Perform selftest on priority array manager"
+       default n
+       depends on PARMAN
+       help
+         Enable this option to test priority array manager on boot
+         (or module load).
+
+         If unsure, say N.
+
 endmenu # runtime tests
 
 config PROVIDE_OHCI1394_DMA_INIT