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| author |  Yosry Ahmed <yosryahmed@google.com>
| 2024-02-22 19:09:11 +0000 |
|---|---|---|
| committer |  Andrew Morton <akpm@linux-foundation.org>
| 2024-03-04 17:01:14 -0800 |
| commit | 15d1ec74b5d7054bba97e8be0b4407cd74976cbd (patch) | |
| tree | bf04d249fda176972660f8a3641aa5512814b6ed /arch/x86/mm | |
| parent | x86/mm: further clarify switch_mm_irqs_off() documentation (diff) | |
| download | linux-15d1ec74b5d7054bba97e8be0b4407cd74976cbd.tar.gz linux-15d1ec74b5d7054bba97e8be0b4407cd74976cbd.tar.bz2 linux-15d1ec74b5d7054bba97e8be0b4407cd74976cbd.zip | |
x86/mm: always pass NULL as the first argument of switch_mm_irqs_off()
The first argument of switch_mm_irqs_off() is unused by the x86
implementation. Make sure that x86 code never passes a non-NULL value to
make this clear. Update the only non violating caller, switch_mm().
Link: https://lkml.kernel.org/r/20240222190911.1903054-2-yosryahmed@google.com
Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/tlb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index b67545baf697..51f9f5694105 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -327,7 +327,7 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next, unsigned long flags; local_irq_save(flags); - switch_mm_irqs_off(prev, next, tsk); + switch_mm_irqs_off(NULL, next, tsk); local_irq_restore(flags); } |