diff options
| author | Juergen Gross <jgross@suse.com> | 2021-03-11 17:23:14 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-03-11 21:51:55 +0300 |
| commit | 33634e42e38be61f320183dfc264b9caba292d4e (patch) | |
| tree | 27d764539466c318e41289025e77d3133d19dfe4 /arch/x86/include/asm/irqflags.h | |
| parent | 4e6292114c741221479046515b1aa8145cf1e3f6 (diff) | |
| download | linux-33634e42e38be61f320183dfc264b9caba292d4e.tar.xz | |
x86/paravirt: Remove no longer needed 32-bit pvops cruft
PVOP_VCALL4() is only used for Xen PV, while PVOP_CALL4() isn't used
at all. Keep PVOP_CALL4() for 64 bits due to symmetry reasons.
This allows to remove the 32-bit definitions of those macros leading
to a substantial simplification of the paravirt macros, as those were
the only ones needing non-empty "pre" and "post" parameters.
PVOP_CALLEE2() and PVOP_VCALLEE2() are used nowhere, so remove them.
Another no longer needed case is special handling of return types
larger than unsigned long. Replace that with a BUILD_BUG_ON().
DISABLE_INTERRUPTS() is used in 32-bit code only, so it can just be
replaced by cli.
INTERRUPT_RETURN in 32-bit code can be replaced by iret.
ENABLE_INTERRUPTS is used nowhere, so it can be removed.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210311142319.4723-10-jgross@suse.com
Diffstat (limited to 'arch/x86/include/asm/irqflags.h')
| -rw-r--r-- | arch/x86/include/asm/irqflags.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h index 144d70ea4393..a0efbcd24b86 100644 --- a/arch/x86/include/asm/irqflags.h +++ b/arch/x86/include/asm/irqflags.h @@ -109,9 +109,6 @@ static __always_inline unsigned long arch_local_irq_save(void) } #else -#define ENABLE_INTERRUPTS(x) sti -#define DISABLE_INTERRUPTS(x) cli - #ifdef CONFIG_X86_64 #ifdef CONFIG_DEBUG_ENTRY #define SAVE_FLAGS(x) pushfq; popq %rax @@ -119,8 +116,6 @@ static __always_inline unsigned long arch_local_irq_save(void) #define INTERRUPT_RETURN jmp native_iret -#else -#define INTERRUPT_RETURN iret #endif #endif /* __ASSEMBLY__ */ |