diff options
Diffstat (limited to 'include/linux/highmem.h')
-rw-r--r-- | include/linux/highmem.h | 41 |
1 files changed, 1 insertions, 40 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h index d3999b4e26cc..774fa47b3b5b 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h | |||
@@ -110,54 +110,15 @@ static inline void kmap_atomic_idx_pop(void) | |||
110 | #endif | 110 | #endif |
111 | 111 | ||
112 | /* | 112 | /* |
113 | * NOTE: | ||
114 | * kmap_atomic() and kunmap_atomic() with two arguments are deprecated. | ||
115 | * We only keep them for backward compatibility, any usage of them | ||
116 | * are now warned. | ||
117 | */ | ||
118 | |||
119 | #define PASTE(a, b) a ## b | ||
120 | #define PASTE2(a, b) PASTE(a, b) | ||
121 | |||
122 | #define NARG_(_2, _1, n, ...) n | ||
123 | #define NARG(...) NARG_(__VA_ARGS__, 2, 1, :) | ||
124 | |||
125 | static inline void __deprecated *kmap_atomic_deprecated(struct page *page, | ||
126 | enum km_type km) | ||
127 | { | ||
128 | return kmap_atomic(page); | ||
129 | } | ||
130 | |||
131 | #define kmap_atomic1(...) kmap_atomic(__VA_ARGS__) | ||
132 | #define kmap_atomic2(...) kmap_atomic_deprecated(__VA_ARGS__) | ||
133 | #define kmap_atomic(...) PASTE2(kmap_atomic, NARG(__VA_ARGS__)(__VA_ARGS__)) | ||
134 | |||
135 | static inline void __deprecated __kunmap_atomic_deprecated(void *addr, | ||
136 | enum km_type km) | ||
137 | { | ||
138 | __kunmap_atomic(addr); | ||
139 | } | ||
140 | |||
141 | /* | ||
142 | * Prevent people trying to call kunmap_atomic() as if it were kunmap() | 113 | * Prevent people trying to call kunmap_atomic() as if it were kunmap() |
143 | * kunmap_atomic() should get the return value of kmap_atomic, not the page. | 114 | * kunmap_atomic() should get the return value of kmap_atomic, not the page. |
144 | */ | 115 | */ |
145 | #define kunmap_atomic_deprecated(addr, km) \ | 116 | #define kunmap_atomic(addr) \ |
146 | do { \ | ||
147 | BUILD_BUG_ON(__same_type((addr), struct page *)); \ | ||
148 | __kunmap_atomic_deprecated(addr, km); \ | ||
149 | } while (0) | ||
150 | |||
151 | #define kunmap_atomic_withcheck(addr) \ | ||
152 | do { \ | 117 | do { \ |
153 | BUILD_BUG_ON(__same_type((addr), struct page *)); \ | 118 | BUILD_BUG_ON(__same_type((addr), struct page *)); \ |
154 | __kunmap_atomic(addr); \ | 119 | __kunmap_atomic(addr); \ |
155 | } while (0) | 120 | } while (0) |
156 | 121 | ||
157 | #define kunmap_atomic1(...) kunmap_atomic_withcheck(__VA_ARGS__) | ||
158 | #define kunmap_atomic2(...) kunmap_atomic_deprecated(__VA_ARGS__) | ||
159 | #define kunmap_atomic(...) PASTE2(kunmap_atomic, NARG(__VA_ARGS__)(__VA_ARGS__)) | ||
160 | /**** End of C pre-processor tricks for deprecated macros ****/ | ||
161 | 122 | ||
162 | /* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */ | 123 | /* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */ |
163 | #ifndef clear_user_highpage | 124 | #ifndef clear_user_highpage |