Messages in this thread | | | Date | Mon, 27 Feb 2012 20:52:55 -0400 | Subject | Re: [PATCH v4 0/5] x86: Cleanup and simplify cpu-specific data | From | Kevin Winchester <> |
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On 27 February 2012 07:59, Ingo Molnar <mingo@elte.hu> wrote: > > * Kevin Winchester <kjwinchester@gmail.com> wrote: > >> Various per-cpu fields are define in arch/x86/kernel/smpboot.c >> that are basically equivalent to the cpu-specific data in >> struct cpuinfo_x86. By moving these fields into the structure, >> a number of codepaths can be simplified since they no longer >> need to care about those fields not existing on !SMP builds. > > Works mostly fine, except with the attached 32-bit UP !APIC > config I get various build failures (resolved via the patch > below) and a link failure (not resolved): >
I get the following failure before I get to link time:
In file included from /home/kevin/linux/linux-2.6/arch/x86/include/asm/uaccess.h:573:0, from /home/kevin/linux/linux-2.6/arch/x86/include/asm/sections.h:5, from /home/kevin/linux/linux-2.6/arch/x86/include/asm/hw_irq.h:26, from include/linux/irq.h:357, from /home/kevin/linux/linux-2.6/arch/x86/include/asm/hardirq.h:5, from include/linux/hardirq.h:7, from include/linux/interrupt.h:12, from net/core/pktgen.c:135: In function ‘copy_from_user’, inlined from ‘pktgen_if_write’ at net/core/pktgen.c:877:20: /home/kevin/linux/linux-2.6/arch/x86/include/asm/uaccess_32.h:211:26: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct make[2]: *** [net/core/pktgen.o] Error 1
On:
gcc (GCC) 4.6.2 20120120 (prerelease)
Is that my fault, or something else?
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