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authorIngo Molnar <mingo@kernel.org>2019-11-20 12:41:43 +0300
committerIngo Molnar <mingo@kernel.org>2019-11-20 12:47:23 +0300
commit5cbaefe9743bf14c9d3106db0cc19f8cb0a3ca22 (patch)
treeb89923344fb8eab289073d904d64e29f51723e88 /lib/Kconfig.kcsan
parent8e1d58ae0c8d4af9ab0141f7e8a9ca95720df01c (diff)
downloadlinux-5cbaefe9743bf14c9d3106db0cc19f8cb0a3ca22.tar.xz
kcsan: Improve various small stylistic details
Tidy up a few bits: - Fix typos and grammar, improve wording. - Remove spurious newlines that are col80 warning artifacts where the resulting line-break is worse than the disease it's curing. - Use core kernel coding style to improve readability and reduce spurious code pattern variations. - Use better vertical alignment for structure definitions and initialization sequences. - Misc other small details. No change in functionality intended. Cc: linux-kernel@vger.kernel.org Cc: Marco Elver <elver@google.com> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/Kconfig.kcsan')
-rw-r--r--lib/Kconfig.kcsan16
1 files changed, 7 insertions, 9 deletions
diff --git a/lib/Kconfig.kcsan b/lib/Kconfig.kcsan
index 5dd464e52ab4..3f78b1434375 100644
--- a/lib/Kconfig.kcsan
+++ b/lib/Kconfig.kcsan
@@ -6,7 +6,6 @@ config HAVE_ARCH_KCSAN
menuconfig KCSAN
bool "KCSAN: watchpoint-based dynamic data race detector"
depends on HAVE_ARCH_KCSAN && !KASAN && STACKTRACE
- default n
help
Kernel Concurrency Sanitizer is a dynamic data race detector, which
uses a watchpoint-based sampling approach to detect races. See
@@ -16,13 +15,12 @@ if KCSAN
config KCSAN_DEBUG
bool "Debugging of KCSAN internals"
- default n
config KCSAN_SELFTEST
bool "Perform short selftests on boot"
default y
help
- Run KCSAN selftests on boot. On test failure, causes kernel to panic.
+ Run KCSAN selftests on boot. On test failure, causes the kernel to panic.
config KCSAN_EARLY_ENABLE
bool "Early enable during boot"
@@ -62,7 +60,8 @@ config KCSAN_DELAY_RANDOMIZE
default y
help
If delays should be randomized, where the maximum is KCSAN_UDELAY_*.
- If false, the chosen delays are always KCSAN_UDELAY_* defined above.
+ If false, the chosen delays are always the KCSAN_UDELAY_* values
+ as defined above.
config KCSAN_SKIP_WATCH
int "Skip instructions before setting up watchpoint"
@@ -86,9 +85,9 @@ config KCSAN_SKIP_WATCH_RANDOMIZE
# parameters, to optimize for the common use-case, we avoid this because: (a)
# it would impact performance (and we want to avoid static branch for all
# {READ,WRITE}_ONCE, atomic_*, bitops, etc.), and (b) complicate the design
-# without real benefit. The main purpose of the below options are for use in
-# fuzzer configs to control reported data races, and are not expected to be
-# switched frequently by a user.
+# without real benefit. The main purpose of the below options is for use in
+# fuzzer configs to control reported data races, and they are not expected
+# to be switched frequently by a user.
config KCSAN_REPORT_RACE_UNKNOWN_ORIGIN
bool "Report races of unknown origin"
@@ -103,13 +102,12 @@ config KCSAN_REPORT_VALUE_CHANGE_ONLY
bool "Only report races where watcher observed a data value change"
default y
help
- If enabled and a conflicting write is observed via watchpoint, but
+ If enabled and a conflicting write is observed via a watchpoint, but
the data value of the memory location was observed to remain
unchanged, do not report the data race.
config KCSAN_IGNORE_ATOMICS
bool "Do not instrument marked atomic accesses"
- default n
help
If enabled, never instruments marked atomic accesses. This results in
not reporting data races where one access is atomic and the other is