* [merged] kasan-remove-__kasan_unpoison_stack.patch removed from -mm tree
@ 2020-12-23 18:29 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-12-23 18:29 UTC (permalink / raw)
To: andreyknvl, aryabinin, Branislav.Rankov, catalin.marinas,
dvyukov, elver, eugenis, glider, gor, kevin.brodsky, mm-commits,
vincenzo.frascino, will.deacon
The patch titled
Subject: kasan: remove __kasan_unpoison_stack
has been removed from the -mm tree. Its filename was
kasan-remove-__kasan_unpoison_stack.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan: remove __kasan_unpoison_stack
There's no need for __kasan_unpoison_stack() helper, as it's only
currently used in a single place. Removing it also removes unneeded
arithmetic.
No functional changes.
Link: https://lkml.kernel.org/r/93e78948704a42ea92f6248ff8a725613d721161.1606162397.git.andreyknvl@google.com
Link: https://linux-review.googlesource.com/id/Ie5ba549d445292fe629b4a96735e4034957bcc50
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/kasan/common.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
--- a/mm/kasan/common.c~kasan-remove-__kasan_unpoison_stack
+++ a/mm/kasan/common.c
@@ -64,18 +64,12 @@ void kasan_unpoison_range(const void *ad
}
#if CONFIG_KASAN_STACK
-static void __kasan_unpoison_stack(struct task_struct *task, const void *sp)
-{
- void *base = task_stack_page(task);
- size_t size = sp - base;
-
- unpoison_range(base, size);
-}
-
/* Unpoison the entire stack for a task. */
void kasan_unpoison_task_stack(struct task_struct *task)
{
- __kasan_unpoison_stack(task, task_stack_page(task) + THREAD_SIZE);
+ void *base = task_stack_page(task);
+
+ unpoison_range(base, THREAD_SIZE);
}
/* Unpoison the stack for the current task beyond a watermark sp value. */
_
Patches currently in -mm which might be from andreyknvl@google.com are
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2020-12-23 18:29 [merged] kasan-remove-__kasan_unpoison_stack.patch removed from -mm tree akpm
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