From: Greg Kroah-Hartman Subject: [PATCH 3.19 083/175] MIPS: Export FP functions used by lose_fpu(1) for KVM Date: Tue, 3 Mar 2015 22:14:21 -0800 Message-ID: <20150304061040.013301805@linuxfoundation.org> References: <20150304061026.134125919@linuxfoundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Cc: Greg Kroah-Hartman , stable@vger.kernel.org, James Hogan , Paolo Bonzini , Ralf Baechle , Paul Burton , Gleb Natapov , kvm@vger.kernel.org, linux-mips@linux-mips.org To: linux-kernel@vger.kernel.org Return-path: In-Reply-To: <20150304061026.134125919@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org 3.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: James Hogan commit 3ce465e04bfd8de9956d515d6e9587faac3375dc 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 f798217dfd03 ("KVM: MIPS: Don't leak FPU/DSP to guest"): ERROR: "_save_fp" [arch/mips/kvm/kvm.ko] undefined! Signed-off-by: James Hogan Fixes: f798217dfd03 (KVM: MIPS: Don't leak FPU/DSP to guest) Cc: Paolo Bonzini Cc: Ralf Baechle Cc: Paul Burton Cc: Gleb Natapov Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9260/ Signed-off-by: Ralf Baechle Signed-off-by: Greg Kroah-Hartman --- arch/mips/kernel/mips_ksyms.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/arch/mips/kernel/mips_ksyms.c +++ b/arch/mips/kernel/mips_ksyms.c @@ -14,6 +14,7 @@ #include #include #include +#include extern void *__bzero(void *__s, size_t __count); extern long __strncpy_from_kernel_nocheck_asm(char *__to, @@ -32,6 +33,11 @@ extern long __strnlen_user_nocheck_asm(c extern long __strnlen_user_asm(const char *s); /* + * Core architecture code + */ +EXPORT_SYMBOL_GPL(_save_fp); + +/* * String functions */ EXPORT_SYMBOL(memset);