forked from Minki/linux
6ede31e030
Randy Dunlap reported the following build error:
"When CONFIG_SMP=n, CONFIG_X86_MSR=m:
ERROR: "msrs_free" [drivers/edac/amd64_edac_mod.ko] undefined!
ERROR: "msrs_alloc" [drivers/edac/amd64_edac_mod.ko] undefined!"
This is due to the fact that <arch/x86/lib/msr.c> is conditioned on
CONFIG_SMP and in the UP case we have only the stubs in the header.
Fork off SMP functionality into a new file (msr-smp.c) and build
msrs_{alloc,free} unconditionally.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
LKML-Reference: <20091216231625.GD27228@liondog.tnic>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
24 lines
382 B
C
24 lines
382 B
C
#include <linux/module.h>
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#include <linux/preempt.h>
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#include <asm/msr.h>
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struct msr *msrs_alloc(void)
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{
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struct msr *msrs = NULL;
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msrs = alloc_percpu(struct msr);
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if (!msrs) {
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pr_warning("%s: error allocating msrs\n", __func__);
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return NULL;
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}
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return msrs;
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}
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EXPORT_SYMBOL(msrs_alloc);
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void msrs_free(struct msr *msrs)
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{
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free_percpu(msrs);
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}
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EXPORT_SYMBOL(msrs_free);
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