| Message ID | 1423562580-23254-3-git-send-email-james.hogan@imgtec.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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
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+ --- Separated from the _save_fp patch so they can be applied separately to stable, since this one only applies since v3.15. --- arch/mips/kernel/mips_ksyms.c | 4 ++++ 1 file changed, 4 insertions(+)