diff options
| author | Thomas Huth <thuth@redhat.com> | 2023-04-26 08:50:32 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 19:18:50 +0200 |
| commit | 9702a046c2617b589dda7edac5b15e754315df3e (patch) | |
| tree | 3803142de063aa5bd567e16dc0ed67d0c460596d /arch/ia64/include/asm | |
| parent | lib: replace kmap() with kmap_local_page() (diff) | |
| download | linux-9702a046c2617b589dda7edac5b15e754315df3e.tar.xz linux-9702a046c2617b589dda7edac5b15e754315df3e.zip | |
arch/ia64/include: remove CONFIG_IA64_DEBUG_CMPXCHG from uapi header
CONFIG_* switches should not be exposed in uapi headers. The macros that
are defined here are also only useful for the kernel code, so let's move
them to asm/cmpxchg.h instead.
The only two files that are using these macros are the headers
arch/ia64/include/asm/bitops.h and arch/ia64/include/asm/atomic.h and
these include asm/cmpxchg.h via asm/intrinsics.h, so this movement should
not cause any trouble.
Link: https://lkml.kernel.org/r/20230426065032.517693-1-thuth@redhat.com
Signed-off-by: Thomas Huth <thuth@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/ia64/include/asm')
| -rw-r--r-- | arch/ia64/include/asm/cmpxchg.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h index 8b2e644ef6a1..d85ee1a0a227 100644 --- a/arch/ia64/include/asm/cmpxchg.h +++ b/arch/ia64/include/asm/cmpxchg.h @@ -13,4 +13,21 @@ #define arch_cmpxchg_local arch_cmpxchg #define arch_cmpxchg64_local arch_cmpxchg64 +#ifdef CONFIG_IA64_DEBUG_CMPXCHG +# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128; +# define CMPXCHG_BUGCHECK(v) \ +do { \ + if (_cmpxchg_bugcheck_count-- <= 0) { \ + void *ip; \ + extern int _printk(const char *fmt, ...); \ + ip = (void *) ia64_getreg(_IA64_REG_IP); \ + _printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\ + break; \ + } \ +} while (0) +#else /* !CONFIG_IA64_DEBUG_CMPXCHG */ +# define CMPXCHG_BUGCHECK_DECL +# define CMPXCHG_BUGCHECK(v) +#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */ + #endif /* _ASM_IA64_CMPXCHG_H */ |