diff options
| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-05-02 19:27:13 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:13 +0200 |
| commit | 45876233605c268e929a7875081e129debe34bdc (patch) | |
| tree | c16487f8e8428e86ecf9802c8ba0da82225622ee /arch | |
| parent | 7f63c41c6c57371a0931da3940c6620c2301442c (diff) | |
| download | op-kernel-dev-45876233605c268e929a7875081e129debe34bdc.zip op-kernel-dev-45876233605c268e929a7875081e129debe34bdc.tar.gz | |
[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 <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
[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
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/paravirt.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index 4769875..3fdbd1f 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -35,7 +35,7 @@ #include <asm/timer.h> /* 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, }; /* |
