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authorBorislav Petkov <bp@suse.de>2015-11-03 10:18:49 +0100
committerThomas Gleixner <tglx@linutronix.de>2015-11-07 18:09:35 +0100
commit79f1d836925c545b4612f7ed19423f0950978b5e (patch)
treebf032813c44c9d8e92138ddec181bbb41643ca6f /arch/x86/kernel/paravirt.c
parent66ef3493d4bb387f5a83915e33dc893102fd1b43 (diff)
downloadop-kernel-dev-79f1d836925c545b4612f7ed19423f0950978b5e.zip
op-kernel-dev-79f1d836925c545b4612f7ed19423f0950978b5e.tar.gz
x86/paravirt: Kill some unused patching functions
paravirt_patch_ignore() is completely unused and paravirt_patch_nop() doesn't do a whole lot. Remove them both. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Juergen Gross <jgross@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/1446542329-32037-1-git-send-email-bp@alien8.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/paravirt.c')
-rw-r--r--arch/x86/kernel/paravirt.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index c2130ae..4f32a10 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -74,16 +74,6 @@ void __init default_banner(void)
/* Undefined instruction for dealing with missing ops pointers. */
static const unsigned char ud2a[] = { 0x0f, 0x0b };
-unsigned paravirt_patch_nop(void)
-{
- return 0;
-}
-
-unsigned paravirt_patch_ignore(unsigned len)
-{
- return len;
-}
-
struct branch {
unsigned char opcode;
u32 delta;
@@ -152,8 +142,7 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
/* If there's no function, patch it with a ud2a (BUG) */
ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
else if (opfunc == _paravirt_nop)
- /* If the operation is a nop, then nop the callsite */
- ret = paravirt_patch_nop();
+ ret = 0;
/* identity functions just return their single argument */
else if (opfunc == _paravirt_ident_32)
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