This is a note to let you know that I've just added the patch titled
s390/ipl: Fix never less than zero warning
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
s390-ipl-fix-never-less-than-zero-warning.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0d7624d8f519497f54bf832e96a0d8646cc8fe01
Author: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Date: Mon Dec 9 17:43:48 2024 +0100
s390/ipl: Fix never less than zero warning
[ Upstream commit 5fa49dd8e521a42379e5e41fcf2c92edaaec0a8b ]
DEFINE_IPL_ATTR_STR_RW() macro produces "unsigned 'len' is never less
than zero." warning when sys_vmcmd_on_*_store() callbacks are defined.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202412081614.5uel8F6W-lkp@xxxxxxxxx/
Fixes: 247576bf624a ("s390/ipl: Do not accept z/VM CP diag X'008' cmds longer than max length")
Reviewed-by: Heiko Carstens <hca@xxxxxxxxxxxxx>
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index f17bb7bf9392..5fa203f4bc6b 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -270,7 +270,7 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \
if (len >= sizeof(_value)) \
return -E2BIG; \
len = strscpy(_value, buf, sizeof(_value)); \
- if (len < 0) \
+ if ((ssize_t)len < 0) \
return len; \
strim(_value); \
return len; \
