The quilt patch titled
Subject: kmsan: do not pass NULL pointers as 0
has been removed from the -mm tree. Its filename was
kmsan-do-not-pass-null-pointers-as-0.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Subject: kmsan: do not pass NULL pointers as 0
Date: Thu, 27 Jun 2024 16:57:47 +0200
sparse complains about passing NULL pointers as 0. Fix all instances.
Link: https://lkml.kernel.org/r/20240627145754.27333-3-iii@xxxxxxxxxxxxx
Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202406272033.KejtfLkw-lkp@xxxxxxxxx/
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kmsan/hooks.c | 15 ++++++++-------
mm/kmsan/instrumentation.c | 4 ++--
2 files changed, 10 insertions(+), 9 deletions(-)
--- a/mm/kmsan/hooks.c~kmsan-do-not-pass-null-pointers-as-0
+++ a/mm/kmsan/hooks.c
@@ -303,7 +303,8 @@ void kmsan_handle_urb(const struct urb *
if (is_out)
kmsan_internal_check_memory(urb->transfer_buffer,
urb->transfer_buffer_length,
- /*user_addr*/ 0, REASON_SUBMIT_URB);
+ /*user_addr*/ NULL,
+ REASON_SUBMIT_URB);
else
kmsan_internal_unpoison_memory(urb->transfer_buffer,
urb->transfer_buffer_length,
@@ -316,14 +317,14 @@ static void kmsan_handle_dma_page(const
{
switch (dir) {
case DMA_BIDIRECTIONAL:
- kmsan_internal_check_memory((void *)addr, size, /*user_addr*/ 0,
- REASON_ANY);
+ kmsan_internal_check_memory((void *)addr, size,
+ /*user_addr*/ NULL, REASON_ANY);
kmsan_internal_unpoison_memory((void *)addr, size,
/*checked*/ false);
break;
case DMA_TO_DEVICE:
- kmsan_internal_check_memory((void *)addr, size, /*user_addr*/ 0,
- REASON_ANY);
+ kmsan_internal_check_memory((void *)addr, size,
+ /*user_addr*/ NULL, REASON_ANY);
break;
case DMA_FROM_DEVICE:
kmsan_internal_unpoison_memory((void *)addr, size,
@@ -418,8 +419,8 @@ void kmsan_check_memory(const void *addr
{
if (!kmsan_enabled)
return;
- return kmsan_internal_check_memory((void *)addr, size, /*user_addr*/ 0,
- REASON_ANY);
+ return kmsan_internal_check_memory((void *)addr, size,
+ /*user_addr*/ NULL, REASON_ANY);
}
EXPORT_SYMBOL(kmsan_check_memory);
--- a/mm/kmsan/instrumentation.c~kmsan-do-not-pass-null-pointers-as-0
+++ a/mm/kmsan/instrumentation.c
@@ -315,8 +315,8 @@ void __msan_warning(u32 origin)
if (!kmsan_enabled || kmsan_in_runtime())
return;
kmsan_enter_runtime();
- kmsan_report(origin, /*address*/ 0, /*size*/ 0,
- /*off_first*/ 0, /*off_last*/ 0, /*user_addr*/ 0,
+ kmsan_report(origin, /*address*/ NULL, /*size*/ 0,
+ /*off_first*/ 0, /*off_last*/ 0, /*user_addr*/ NULL,
REASON_ANY);
kmsan_leave_runtime();
}
_
Patches currently in -mm which might be from iii@xxxxxxxxxxxxx are
