Add a dummy printk function for the maintenance of unused printks
Add a dummy printk function for the maintenance of unused printks through gcc format checking, and also so that side-effect checking is maintained too. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@@ -321,17 +321,11 @@ void fscache_put_context(struct fscache_cookie *cookie, void *context)
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#define dbgprintk(FMT, ...) \
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printk(KERN_DEBUG "[%-6.6s] "FMT"\n", current->comm, ##__VA_ARGS__)
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/* make sure we maintain the format strings, even when debugging is disabled */
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static inline __attribute__((format(printf, 1, 2)))
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void _dbprintk(const char *fmt, ...)
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{
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}
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#define kenter(FMT, ...) dbgprintk("==> %s("FMT")", __func__, ##__VA_ARGS__)
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#define kleave(FMT, ...) dbgprintk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
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#define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__)
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#define kjournal(FMT, ...) _dbprintk(FMT, ##__VA_ARGS__)
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#define kjournal(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
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#ifdef __KDEBUG
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#define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)
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@@ -358,9 +352,9 @@ do { \
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} while (0)
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#else
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#define _enter(FMT, ...) _dbprintk("==> %s("FMT")", __func__, ##__VA_ARGS__)
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#define _leave(FMT, ...) _dbprintk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
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#define _debug(FMT, ...) _dbprintk(FMT, ##__VA_ARGS__)
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#define _enter(FMT, ...) no_printk("==> %s("FMT")", __func__, ##__VA_ARGS__)
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#define _leave(FMT, ...) no_printk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
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#define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
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#endif
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/*
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