Messages in this thread | | | Date | Wed, 08 Aug 2012 15:34:11 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [tip:x86:fpu 2/2] arch/x86/kernel/signal.c:626:4: error: implicit declaration of function '__setup_frame' |
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On 07/26/2012 10:48 AM, Suresh Siddha wrote: > > Appended the patch for this. Thanks! > --- > From: Suresh Siddha <suresh.b.siddha@intel.com> > Subject: x86, fpu: fix x86_64 build without CONFIG_IA32_EMULATION > > Fengguang's automated build reported some compilation failures: >> arch/x86/kernel/signal.c: In function 'setup_rt_frame': >> arch/x86/kernel/signal.c:626:4: error: implicit declaration of function '__setup_frame' >> arch/x86/kernel/xsave.c: In function 'save_fsave_header': >> arch/x86/kernel/xsave.c:144:7: error: dereferencing pointer to incomplete type >> ... > > Fix x86_64 kernel build without CONFIG_IA32_EMULATION. > > Code saving fsave prefix is applicable only for CONFIG_X86_32 or > CONFIG_IA32_EMULATION. Use config_enabled() checks to remove the unnecessary > code compile-time for x86_64 kernels build without CONFIG_IA32_EMULATION. > > Also while we are at this, fix a spurious warning: >> arch/x86/kernel/xsave.c:209:15: warning: ignoring return value of ‘__clear_user’, declared with attribute warn_unused_result > > Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
With this patch applied I get an error at:
/home/hpa/kernel/tip.x86-fpu/arch/x86/kernel/signal.c:792:12: error: static declaration of ‘x32_setup_rt_frame’ follows non-static declaration In file included from /home/hpa/kernel/tip.x86-fpu/arch/x86/kernel/signal.c:29:0: /home/hpa/kernel/tip.x86-fpu/arch/x86/include/asm/fpu-internal.h:62:5: note: previous declaration of ‘x32_setup_rt_frame’ was here /home/hpa/kernel/tip.x86-fpu/arch/x86/kernel/signal.c:792:12: warning: ‘x32_setup_rt_frame’ defined but not used [-Wunused-function] make[4]: *** [arch/x86/kernel/signal.o] Error 1 make[3]: *** [arch/x86/kernel] Error 2 make[2]: *** [arch/x86] Error 2 make[1]: *** [sub-make] Error 2 make[1]: Leaving directory `/home/hpa/kernel/tip.x86-fpu'
... for an x86-64 allyesconfig.
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
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