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x86/static-call: fix 32-bit build

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commit 349f0086ba upstream.

In 32-bit x86 builds CONFIG_STATIC_CALL_INLINE isn't set, leading to
static_call_initialized not being available.

Define it as "0" in that case.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 0ef8047b73 ("x86/static-call: provide a way to do very early static-call updates")
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Juergen Gross 2024-12-18 09:02:28 +01:00 committed by Greg Kroah-Hartman
parent b61f346fa0
commit 5d16dd18bf
1 changed files with 6 additions and 1 deletions
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7
include/linux/static_call.h
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@ -138,7 +138,6 @@
#ifdef CONFIG_HAVE_STATIC_CALL
#include <asm/static_call.h>
extern bool static_call_initialized;
/*
* Either @site or @tramp can be NULL.
*/
@ -161,6 +160,8 @@ extern void arch_static_call_transform(void *site, void *tramp, void *func, bool
#ifdef CONFIG_HAVE_STATIC_CALL_INLINE
extern bool static_call_initialized;
extern int __init static_call_init(void);
struct static_call_mod {
@ -224,6 +225,8 @@ extern long __static_call_return0(void);
#elif defined(CONFIG_HAVE_STATIC_CALL)
#define static_call_initialized 0
static inline int static_call_init(void) { return 0; }
#define DEFINE_STATIC_CALL(name, _func) \
@ -280,6 +283,8 @@ extern long __static_call_return0(void);
#else /* Generic implementation */
#define static_call_initialized 0
static inline int static_call_init(void) { return 0; }
static inline long __static_call_return0(void)