From: Heiko Stuebner heiko@sntech.de
[ Upstream commit 4054eee9290248bf66c5eacb58879c9aaad37f71 ]
vcpu_fp uses the riscv_isa_extension mechanism which gets defined in hwcap.h but doesn't include that head file.
While it seems to work in most cases, in certain conditions this can lead to build failures like
../arch/riscv/kvm/vcpu_fp.c: In function ‘kvm_riscv_vcpu_fp_reset’: ../arch/riscv/kvm/vcpu_fp.c:22:13: error: implicit declaration of function ‘riscv_isa_extension_available’ [-Werror=implicit-function-declaration] 22 | if (riscv_isa_extension_available(&isa, f) || | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/kvm/vcpu_fp.c:22:49: error: ‘f’ undeclared (first use in this function) 22 | if (riscv_isa_extension_available(&isa, f) ||
Fix this by simply including the necessary header.
Fixes: 0a86512dc113 ("RISC-V: KVM: Factor-out FP virtualization into separate sources") Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Anup Patel anup@brainfault.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/kvm/vcpu_fp.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/riscv/kvm/vcpu_fp.c b/arch/riscv/kvm/vcpu_fp.c index 4449a976e5a6..d4308c512007 100644 --- a/arch/riscv/kvm/vcpu_fp.c +++ b/arch/riscv/kvm/vcpu_fp.c @@ -11,6 +11,7 @@ #include <linux/err.h> #include <linux/kvm_host.h> #include <linux/uaccess.h> +#include <asm/hwcap.h>
#ifdef CONFIG_FPU void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu)