https://github.com/torvalds/linux
Revision b89f30683970fd2011eeae83b5161764aab3e21b authored by Paul Burton on 25 September 2014, 09:26:15 UTC, committed by Ralf Baechle on 23 October 2014, 17:58:13 UTC
The no-op cases of cop2_save & cop2_restore lead to the following warnings being emitted during build with recent versions of gcc (tested using gcc 4.8.3 from the Mentor Sourcery CodeBench 2014.05 toolchain): In file included from ./arch/mips/include/asm/switch_to.h:18:0, from kernel/sched/core.c:78: kernel/sched/core.c: In function 'finish_task_switch': include/asm-generic/current.h:6:45: warning: value computed is not used [-Wunused-value] #define get_current() (current_thread_info()->task) ^ ./arch/mips/include/asm/cop2.h:48:32: note: in definition of macro 'cop2_restore' #define cop2_restore(r) do { (r); } while (0) ^ include/asm-generic/current.h:7:17: note: in expansion of macro 'get_current' #define current get_current() ^ ./arch/mips/include/asm/switch_to.h:114:16: note: in expansion of macro 'current' cop2_restore(current); \ ^ kernel/sched/core.c:2225:2: note: in expansion of macro 'finish_arch_switch' finish_arch_switch(prev); ^ Avoid the warning by "using" the value by casting to void. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7880/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 parent 39a5959
Tip revision: b89f30683970fd2011eeae83b5161764aab3e21b authored by Paul Burton on 25 September 2014, 09:26:15 UTC
MIPS: Prevent compiler warning from cop2_{save,restore}
MIPS: Prevent compiler warning from cop2_{save,restore}
Tip revision: b89f306
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block | ||
crypto | ||
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include | ||
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kernel | ||
lib | ||
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net | ||
samples | ||
scripts | ||
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usr | ||
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.gitignore | -rw-r--r-- | 1.1 KB |
.mailmap | -rw-r--r-- | 4.7 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 93.8 KB |
Kbuild | -rw-r--r-- | 2.5 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 283.9 KB |
Makefile | -rw-r--r-- | 53.1 KB |
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