From: Borislav Petkov <b...@suse.de>
paravirt_patch_ignore() is completely unused and paravirt_patch_nop()
doesn't do a whole lot. Remove them both.
Signed-off-by: Borislav Petkov <b...@suse.de>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Chris Wright <chr...@sous-sol.org>
Cc: "H. Peter Anvin" <h...@zytor.com>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Jeremy Fitzhardinge <jer...@goop.org>
Cc: Juergen Gross <jgr...@suse.com>
Cc: "Peter Zijlstra (Intel)" <pet...@infradead.org>
Cc: Rusty Russell <ru...@rustcorp.com.au>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: virtualization@lists.linux-foundation.org
Cc: xen-de...@lists.xenproject.org
---
arch/x86/include/asm/paravirt_types.h | 2 --
arch/x86/kernel/paravirt.c | 13 +------------
2 files changed, 1 insertion(+), 14 deletions(-)
diff --git a/arch/x86/include/asm/paravirt_types.h
b/arch/x86/include/asm/paravirt_types.h
index 31247b5bff7c..e1f31dfc3b31 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -402,10 +402,8 @@ extern struct pv_lock_ops pv_lock_ops;
__visible extern const char start_##ops##_##name[],
end_##ops##_##name[]; \
asm(NATIVE_LABEL("start_", ops, name) code NATIVE_LABEL("end_", ops,
name))
-unsigned paravirt_patch_nop(void);
unsigned paravirt_patch_ident_32(void *insnbuf, unsigned len);
unsigned paravirt_patch_ident_64(void *insnbuf, unsigned len);
-unsigned paravirt_patch_ignore(unsigned len);
unsigned paravirt_patch_call(void *insnbuf,
const void *target, u16 tgt_clobbers,
unsigned long addr, u16 site_clobbers,
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index c2130aef3f9d..4f32a10979db 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)
--
2.3.5
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