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authorJames Hogan <james.hogan@imgtec.com>2015-02-10 10:03:00 +0000
committerRalf Baechle <ralf@linux-mips.org>2015-02-19 15:59:44 +0100
commitca5d25642e212f73492d332d95dc90ef46a0e8dc (patch)
treed38526e0a248ecc14c16596c380b48b53de8613e /arch
parent3ce465e04bfd8de9956d515d6e9587faac3375dc (diff)
downloadlinux-ca5d25642e212f73492d332d95dc90ef46a0e8dc.tar.gz
MIPS: Export MSA functions used by lose_fpu(1) for KVM
Export the _save_msa asm function used by the lose_fpu(1) macro to GPL modules so that KVM can make use of it when it is built as a module. This fixes the following build error when CONFIG_KVM=m and CONFIG_CPU_HAS_MSA=y due to commit f798217dfd03 ("KVM: MIPS: Don't leak FPU/DSP to guest"): ERROR: "_save_msa" [arch/mips/kvm/kvm.ko] undefined! Fixes: f798217dfd03 (KVM: MIPS: Don't leak FPU/DSP to guest) Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 3.15+ Patchwork: https://patchwork.linux-mips.org/patch/9261/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/mips_ksyms.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/kernel/mips_ksyms.c b/arch/mips/kernel/mips_ksyms.c
index 167ce3fae398..1a73c6c9e4b7 100644
--- a/arch/mips/kernel/mips_ksyms.c
+++ b/arch/mips/kernel/mips_ksyms.c
@@ -15,6 +15,7 @@
#include <asm/uaccess.h>
#include <asm/ftrace.h>
#include <asm/fpu.h>
+#include <asm/msa.h>
extern void *__bzero(void *__s, size_t __count);
extern long __strncpy_from_kernel_nocheck_asm(char *__to,
@@ -36,6 +37,9 @@ extern long __strnlen_user_asm(const char *s);
* Core architecture code
*/
EXPORT_SYMBOL_GPL(_save_fp);
+#ifdef CONFIG_CPU_HAS_MSA
+EXPORT_SYMBOL_GPL(_save_msa);
+#endif
/*
* String functions