From 45876233605c268e929a7875081e129debe34bdc Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Wed, 2 May 2007 19:27:13 +0200 Subject: [PATCH] i386: PARAVIRT: use paravirt_nop to consistently mark no-op operations Add a _paravirt_nop function for use as a stub for no-op operations, and paravirt_nop #defined void * version to make using it easier (since all its uses are as a void *). This is useful to allow the patcher to automatically identify noop operations so it can simply nop out the callsite. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Andi Kleen Acked-by: Ingo Molnar [mingo] but only as a cleanup of the current open-coded (void *) casts. My problem with this is that it loses the types. Not that there is much to check for, but still, this adds some assumptions about how function calls look like --- arch/i386/kernel/paravirt.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'arch/i386/kernel') diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index 47698756aec..3fdbd1f6237 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -35,7 +35,7 @@ #include /* nop stub */ -static void native_nop(void) +void _paravirt_nop(void) { } @@ -207,7 +207,7 @@ struct paravirt_ops paravirt_ops = { .patch = native_patch, .banner = default_banner, - .arch_setup = native_nop, + .arch_setup = paravirt_nop, .memory_setup = machine_specific_memory_setup, .get_wallclock = native_get_wallclock, .set_wallclock = native_set_wallclock, @@ -263,25 +263,25 @@ struct paravirt_ops paravirt_ops = { .setup_boot_clock = setup_boot_APIC_clock, .setup_secondary_clock = setup_secondary_APIC_clock, #endif - .set_lazy_mode = (void *)native_nop, + .set_lazy_mode = paravirt_nop, .flush_tlb_user = native_flush_tlb, .flush_tlb_kernel = native_flush_tlb_global, .flush_tlb_single = native_flush_tlb_single, - .map_pt_hook = (void *)native_nop, + .map_pt_hook = paravirt_nop, - .alloc_pt = (void *)native_nop, - .alloc_pd = (void *)native_nop, - .alloc_pd_clone = (void *)native_nop, - .release_pt = (void *)native_nop, - .release_pd = (void *)native_nop, + .alloc_pt = paravirt_nop, + .alloc_pd = paravirt_nop, + .alloc_pd_clone = paravirt_nop, + .release_pt = paravirt_nop, + .release_pd = paravirt_nop, .set_pte = native_set_pte, .set_pte_at = native_set_pte_at, .set_pmd = native_set_pmd, - .pte_update = (void *)native_nop, - .pte_update_defer = (void *)native_nop, + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, #ifdef CONFIG_X86_PAE .set_pte_atomic = native_set_pte_atomic, .set_pte_present = native_set_pte_present, @@ -293,7 +293,7 @@ struct paravirt_ops paravirt_ops = { .irq_enable_sysexit = native_irq_enable_sysexit, .iret = native_iret, - .startup_ipi_hook = (void *)native_nop, + .startup_ipi_hook = paravirt_nop, }; /* -- cgit v1.2.3