This is a note to let you know that I've just added the patch titled
sparc: vDSO: fix return value of __setup handler
to the 5.15-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:
sparc-vdso-fix-return-value-of-__setup-handler.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0ce48924053f19b4bff9d461d0515e9e5300405e
Author: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Date: Sat Feb 10 21:28:08 2024 -0800
sparc: vDSO: fix return value of __setup handler
[ Upstream commit 5378f00c935bebb846b1fdb0e79cb76c137c56b5 ]
__setup() handlers should return 1 to obsolete_checksetup() in
init/main.c to indicate that the boot option has been handled.
A return of 0 causes the boot option/value to be listed as an Unknown
kernel parameter and added to init's (limited) argument or environment
strings. Also, error return codes don't mean anything to
obsolete_checksetup() -- only non-zero (usually 1) or zero.
So return 1 from vdso_setup().
Fixes: 9a08862a5d2e ("vDSO for sparc")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: Igor Zhbanov <izh1979@xxxxxxxxx>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@xxxxxxxxxxxx
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: sparclinux@xxxxxxxxxxxxxxx
Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: Nick Alcock <nick.alcock@xxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Andreas Larsson <andreas@xxxxxxxxxxx>
Signed-off-by: Andreas Larsson <andreas@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240211052808.22635-1-rdunlap@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/sparc/vdso/vma.c b/arch/sparc/vdso/vma.c
index cc19e09b0fa1e..b073153c711ad 100644
--- a/arch/sparc/vdso/vma.c
+++ b/arch/sparc/vdso/vma.c
@@ -449,9 +449,8 @@ static __init int vdso_setup(char *s)
unsigned long val;
err = kstrtoul(s, 10, &val);
- if (err)
- return err;
- vdso_enabled = val;
- return 0;
+ if (!err)
+ vdso_enabled = val;
+ return 1;
}
__setup("vdso=", vdso_setup);
