5.4-stable review patch. If anyone has any objections, please let me know.
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From: Randy Dunlap rdunlap@infradead.org
[ 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@infradead.org Reported-by: Igor Zhbanov izh1979@gmail.com Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru Cc: "David S. Miller" davem@davemloft.net Cc: sparclinux@vger.kernel.org Cc: Dan Carpenter dan.carpenter@oracle.com Cc: Nick Alcock nick.alcock@oracle.com Cc: Sam Ravnborg sam@ravnborg.org Cc: Andrew Morton akpm@linux-foundation.org Cc: stable@vger.kernel.org Cc: Arnd Bergmann arnd@arndb.de Cc: Andreas Larsson andreas@gaisler.com Signed-off-by: Andreas Larsson andreas@gaisler.com Link: https://lore.kernel.org/r/20240211052808.22635-1-rdunlap@infradead.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/sparc/vdso/vma.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/sparc/vdso/vma.c b/arch/sparc/vdso/vma.c index 9961b0f816939..3a30a086f0feb 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);