[PATCH] RISC-V: Fix up some vector state related build failures

[Palmer Dabbelt]

I get a few build failures along the lines of

./arch/riscv/include/uapi/asm/sigcontext.h:19:36: error: field ‘v_state’ has incomplete type
   19 |         struct __riscv_v_ext_state v_state;
      |                                    ^~~~~~~
./arch/riscv/include/uapi/asm/sigcontext.h:32:49: error: field ‘sc_extdesc’ has incomplete type
   32 |                 struct __riscv_extra_ext_header sc_extdesc;

The V structures in question are defined for !assembly, so let's just do
so for the others.

Fixes: 8ee0b41898fa ("riscv: signal: Add sigcontext save/restore for vector")
Signed-off-by: Palmer Dabbelt <palmer at rivosinc.com>
---
 arch/riscv/include/uapi/asm/sigcontext.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/include/uapi/asm/sigcontext.h b/arch/riscv/include/uapi/asm/sigcontext.h
index 8b8a8541673a..8c8712aa9551 100644
--- a/arch/riscv/include/uapi/asm/sigcontext.h
+++ b/arch/riscv/include/uapi/asm/sigcontext.h
@@ -15,6 +15,8 @@
 /* The size of END signal context header. */
 #define END_HDR_SIZE	0x0
 
+#ifndef __ASSEMBLY__
+
 struct __sc_riscv_v_state {
 	struct __riscv_v_ext_state v_state;
 } __attribute__((aligned(16)));
@@ -33,4 +35,6 @@ struct sigcontext {
 	};
 };
 
+#endif /*!__ASSEMBLY__*/
+
 #endif /* _UAPI_ASM_RISCV_SIGCONTEXT_H */
-- 
2.40.1