Randy Dunlap 737b14e490 x86: Fix return value of __setup handlers ... [ Upstream commit 12441ccdf5 ] __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 (no '=') or environment (with '=') strings. So return 1 from these x86 __setup handlers. Examples: Unknown kernel command line parameters "apicpmtimer BOOT_IMAGE=/boot/bzImage-517rc8 vdso=1 ring3mwait=disable", will be passed to user space. Run /sbin/init as init process with arguments: /sbin/init apicpmtimer with environment: HOME=/ TERM=linux BOOT_IMAGE=/boot/bzImage-517rc8 vdso=1 ring3mwait=disable Fixes: 2aae950b21 ("x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu") Fixes: 77b52b4c5c ("x86: add "debugpat" boot option") Fixes: e16fd002af ("x86/cpufeature: Enable RING3MWAIT for Knights Landing") Fixes: b8ce335906 ("x86_64: convert to clock events") Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru Link: https://lore.kernel.org/r/20220314012725.26661-1-rdunlap@infradead.org Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-09 10:22:53 +02:00
..
cpa-test.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
Makefile
memtype_interval.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
memtype.c	x86: Fix return value of __setup handlers	2022-06-09 10:22:53 +02:00
memtype.h
set_memory.c	mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t *	2021-07-08 11:48:22 -07:00