[PATCH] accel/tcg/plugin: Fix op_rw

[Richard Henderson <richard.henderson@linaro.org>]

The value of op->args[2] is enum qemu_plugin_mem_rw, which
is already 1-based.  Adding 1 produces incorrect results
for QEMU_PLUGIN_MEM_W and QEMU_PLUGIN_MEM_RW.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 accel/tcg/plugin-gen.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index c7d6514840..cd9cee1f5d 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -495,10 +495,7 @@ static bool op_ok(const TCGOp *op, const struct qemu_plugin_dyn_cb *cb)
 
 static bool op_rw(const TCGOp *op, const struct qemu_plugin_dyn_cb *cb)
 {
-    int w;
-
-    w = op->args[2];
-    return !!(cb->rw & (w + 1));
+    return cb->rw & op->args[2];
 }
 
 static void inject_cb_type(const GArray *cbs, TCGOp *begin_op,
-- 
2.34.1