Fix highmem PPC build failure
Commit f4112de6b6
("mm: introduce
debug_kmap_atomic") broke PPC builds with CONFIG_HIGHMEM=y:
CC init/main.o
In file included from include/linux/highmem.h:25,
from include/linux/pagemap.h:11,
from include/linux/mempolicy.h:63,
from init/main.c:53:
arch/powerpc/include/asm/highmem.h: In function 'kmap_atomic_prot':
arch/powerpc/include/asm/highmem.h:98: error: implicit declaration of function 'debug_kmap_atomic'
In file included from include/linux/pagemap.h:11,
from include/linux/mempolicy.h:63,
from init/main.c:53:
include/linux/highmem.h: At top level:
include/linux/highmem.h:196: warning: conflicting types for 'debug_kmap_atomic'
include/linux/highmem.h:196: error: static declaration of 'debug_kmap_atomic' follows non-static declaration
include/asm/highmem.h:98: error: previous implicit declaration of 'debug_kmap_atomic' was here
make[1]: *** [init/main.o] Error 1
make: *** [init] Error 2
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
c54c4dec61
commit
3688e07f83
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@ -19,8 +19,21 @@ static inline void flush_kernel_dcache_page(struct page *page)
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}
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#endif
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#ifdef CONFIG_HIGHMEM
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#include <asm/kmap_types.h>
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#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
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void debug_kmap_atomic(enum km_type type);
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#else
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static inline void debug_kmap_atomic(enum km_type type)
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{
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}
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#endif
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#ifdef CONFIG_HIGHMEM
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#include <asm/highmem.h>
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/* declarations for linux/mm/highmem.c */
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@ -44,8 +57,6 @@ static inline void *kmap(struct page *page)
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#define kunmap(page) do { (void) (page); } while (0)
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#include <asm/kmap_types.h>
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static inline void *kmap_atomic(struct page *page, enum km_type idx)
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{
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pagefault_disable();
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@ -187,16 +198,4 @@ static inline void copy_highpage(struct page *to, struct page *from)
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kunmap_atomic(vto, KM_USER1);
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}
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#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
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void debug_kmap_atomic(enum km_type type);
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#else
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static inline void debug_kmap_atomic(enum km_type type)
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{
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}
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#endif
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#endif /* _LINUX_HIGHMEM_H */
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