[PATCH 6/8] riscv: fpu: switch has_fpu() to riscv_has_extension_likely()

Jisheng Zhang jszhang at kernel.org
Thu Oct 6 00:08:16 PDT 2022


Switch has_fpu() from statich branch to the new helper
riscv_has_extension_likely().

Signed-off-by: Jisheng Zhang <jszhang at kernel.org>
---
 arch/riscv/include/asm/switch_to.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/include/asm/switch_to.h b/arch/riscv/include/asm/switch_to.h
index 11463489fec6..60f8ca01d36e 100644
--- a/arch/riscv/include/asm/switch_to.h
+++ b/arch/riscv/include/asm/switch_to.h
@@ -59,7 +59,8 @@ static inline void __switch_to_aux(struct task_struct *prev,
 
 static __always_inline bool has_fpu(void)
 {
-	return static_branch_likely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_FPU]);
+	return riscv_has_extension_likely(RISCV_ISA_EXT_f) ||
+		riscv_has_extension_likely(RISCV_ISA_EXT_d);
 }
 #else
 static __always_inline bool has_fpu(void) { return false; }
-- 
2.37.2




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