Commit 56fcf534 authored by James Hogan's avatar James Hogan Committed by Luis Henriques

MIPS: Export FP functions used by lose_fpu(1) for KVM

commit 3ce465e0 upstream.

Export the _save_fp 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 due to commit
f798217d ("KVM: MIPS: Don't leak FPU/DSP to guest"):

ERROR: "_save_fp" [arch/mips/kvm/kvm.ko] undefined!
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Fixes: f798217d (KVM: MIPS: Don't leak FPU/DSP to guest)
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
Patchwork: https://patchwork.linux-mips.org/patch/9260/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent d27ae2c2
...@@ -14,6 +14,7 @@ ...@@ -14,6 +14,7 @@
#include <linux/mm.h> #include <linux/mm.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/ftrace.h> #include <asm/ftrace.h>
#include <asm/fpu.h>
extern void *__bzero(void *__s, size_t __count); extern void *__bzero(void *__s, size_t __count);
extern long __strncpy_from_kernel_nocheck_asm(char *__to, extern long __strncpy_from_kernel_nocheck_asm(char *__to,
...@@ -33,6 +34,11 @@ extern long __strnlen_kernel_asm(const char *s); ...@@ -33,6 +34,11 @@ extern long __strnlen_kernel_asm(const char *s);
extern long __strnlen_user_nocheck_asm(const char *s); extern long __strnlen_user_nocheck_asm(const char *s);
extern long __strnlen_user_asm(const char *s); extern long __strnlen_user_asm(const char *s);
/*
* Core architecture code
*/
EXPORT_SYMBOL_GPL(_save_fp);
/* /*
* String functions * String functions
*/ */
......
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