[PATCH v3 07/21] linux-user: Tidy VERIFY_READ/VERIFY_WRITE

[Richard Henderson]

These constants are only ever used with access_ok, and friends.
Rather than translating them to PAGE_* bits, let them equal
the PAGE_* bits to begin.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/qemu.h | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index a0f670832e..329a6de669 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -486,8 +486,8 @@ extern unsigned long guest_stack_size;
 
 /* user access */
 
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1 /* implies read access */
+#define VERIFY_READ  PAGE_READ
+#define VERIFY_WRITE (PAGE_READ | PAGE_WRITE)
 
 static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
 {
@@ -499,9 +499,7 @@ static inline bool access_ok(int type, abi_ulong addr, 
abi_ulong size)
          !guest_addr_valid(addr + size - 1))) {
         return false;
     }
-    return page_check_range((target_ulong)addr, size,
-                            (type == VERIFY_READ) ? PAGE_READ :
-                            (PAGE_READ | PAGE_WRITE)) == 0;
+    return page_check_range((target_ulong)addr, size, type) == 0;
 }
 
 /* NOTE __get_user and __put_user use host pointers and don't check access.
-- 
2.25.1