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authorDavid Daney <ddaney@caviumnetworks.com>2008-11-20 17:26:36 -0800
committerRalf Baechle <ralf@linux-mips.org>2008-11-24 16:35:07 +0000
commit8ec2e24356e63dc298c6040557faf396410907ac (patch)
tree77615c090cec2a726a31618e66aaac7dd10a33b1 /include/linux/kfifo.h
parented313489badef16d700f5a3be50e8fd8f8294bc8 (diff)
MIPS: Make BUG() __noreturn.
Often we do things like put BUG() in the default clause of a case statement. Since it was not declared __noreturn, this could sometimes lead to bogus compiler warnings that variables were used uninitialized. There is a small problem in that we have to put a magic while(1); loop to fool GCC into really thinking it is noreturn. This makes the new BUG() function 3 instructions long instead of just 1, but I think it is worth it as it is now unnecessary to do extra work to silence the 'used uninitialized' warnings. I also re-wrote BUG_ON so that if it is given a constant condition, it just does BUG() instead of loading a constant value in to a register and testing it. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/linux/kfifo.h')
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