Linux Virtualization - Apr 2007 - [PATCH] Fix 'arch/i386/kernel/paravirt.c:481: warning: initialization from incompatible pointer type'

Fix paravirt_probe() macro so that handing it start_kernel doesn't
evoke a warning (start_kernel is asmlinkage).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/dontdiff
--minimal linux-2.6.19-rc4-mm2/include/asm-i386/paravirt.h
working-2.6.19-rc4-mm2-warnings/include/asm-i386/paravirt.h
--- linux-2.6.19-rc4-mm2/include/asm-i386/paravirt.h	2006-11-05
15:35:55.000000000 +1100
+++ working-2.6.19-rc4-mm2-warnings/include/asm-i386/paravirt.h	2006-11-05
16:03:41.000000000 +1100
@@ -147,7 +147,7 @@ struct paravirt_ops
 
 /* Mark a paravirt probe function. */
 #define paravirt_probe(fn)						\
-	static void (*__paravirtprobe_##fn)(void) __attribute_used__	\
+ static asmlinkage void (*__paravirtprobe_##fn)(void) __attribute_used__ \
 		__attribute__((__section__(".paravirtprobe"))) = fn
 
 extern struct paravirt_ops paravirt_ops;

Fix warning about "unused variable i" when CONFIG_PARAVIRT enabled and
CONFIG_DEBUG_PARAVIRT disabled.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/dontdiff
--minimal linux-2.6.19-rc4-mm2/arch/i386/kernel/alternative.c
working-2.6.19-rc4-mm2-warnings/arch/i386/kernel/alternative.c
--- linux-2.6.19-rc4-mm2/arch/i386/kernel/alternative.c	2006-11-05
15:35:24.000000000 +1100
+++ working-2.6.19-rc4-mm2-warnings/arch/i386/kernel/alternative.c	2006-11-05
16:04:38.000000000 +1100
@@ -352,7 +352,6 @@ void alternatives_smp_switch(int smp)
 void apply_paravirt(struct paravirt_patch *start, struct paravirt_patch *end)
 {
 	struct paravirt_patch *p;
-	int i;
 
 	for (p = start; p < end; p++) {
 		unsigned int used;
@@ -360,6 +359,8 @@ void apply_paravirt(struct paravirt_patc
 		used = paravirt_ops.patch(p->instrtype, p->clobbers, p->instr,
 					  p->len);
 #ifdef CONFIG_DEBUG_PARAVIRT
+		{
+		int i;
 		/* Deliberately clobber regs using "not %reg" to find bugs. */
 		for (i = 0; i < 3; i++) {
 			if (p->len - used >= 2 && (p->clobbers & (1 <<
i))) {
@@ -368,6 +369,7 @@ void apply_paravirt(struct paravirt_patc
 				used += 2;
 			}
 		}
+		}
 #endif
 		/* Pad the rest with nops */
 		nop_out(p->instr + used, p->len - used);