The patch titled
Subject: mm: remove unnecessary check in alloc_thread_stack_node()
has been added to the -mm tree. Its filename is
kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix-2.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix-2.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix-2.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Subject: mm: remove unnecessary check in alloc_thread_stack_node()
The "stack" pointer cannot be NULL at this point so there is no
need to check.
Link: https://lkml.kernel.org/r/20220301080706.GB17208@kili
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/fork.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/kernel/fork.c~kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix-2
+++ a/kernel/fork.c
@@ -328,8 +328,7 @@ static int alloc_thread_stack_node(struc
* so cache the vm_struct.
*/
tsk->stack_vm_area = vm;
- if (stack)
- stack = kasan_reset_tag(stack);
+ stack = kasan_reset_tag(stack);
tsk->stack = stack;
return 0;
}
_
Patches currently in -mm which might be from dan.carpenter@xxxxxxxxxx are
kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix-2.patch
