[PATCH RESEND for-5.9] MIPS: KVM: Convert a fallthrough comment to fallthrough

[Jiaxun Yang]

There is a fallthrough comment being forgotten,
GCC complains about it:

arch/mips/kvm/emulate.c: In function kvm_mips_emulate_load:
arch/mips/kvm/emulate.c:1936:21: error: this statement may fall through
 1936 |   vcpu->mmio_needed = 1; /* unsigned */
      |   ~~~~~~~~~~~~~~~~~~^~~
arch/mips/kvm/emulate.c:1939:2: note: here
 1939 |  case lw_op:

Just fix it.

Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
Reviewed-by: Huacai Chen <chenhc@xxxxxxxxxx>
---
This is blocking KVM MIPS from build, so it needs to get into 5.9.
---
 arch/mips/kvm/emulate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index 703782355318..d70c4f8e14e2 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -1935,7 +1935,7 @@ enum emulation_result kvm_mips_emulate_load(union mips_instruction inst,
 
 	case lwu_op:
 		vcpu->mmio_needed = 1;	/* unsigned */
-		/* fall through */
+		fallthrough;
 #endif
 	case lw_op:
 		run->mmio.len = 4;
-- 
2.28.0.rc1