[PATCH v4 08/23] bsd-user: Tidy VERIFY_READ/VERIFY_WRITE

Richard Henderson posted 23 patches 3 years, 9 months ago
Maintainers: Peter Maydell <peter.maydell@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Laurent Vivier <laurent@vivier.eu>
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[PATCH v4 08/23] bsd-user: Tidy VERIFY_READ/VERIFY_WRITE
Posted by Richard Henderson 3 years, 9 months ago
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>
---
 bsd-user/qemu.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index f8bb1e5459..4076adabd0 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -218,13 +218,12 @@ extern unsigned long x86_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 int access_ok(int type, abi_ulong addr, abi_ulong size)
+static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
 {
-    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