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[Qemu-devel] [PATCH] hw/pflash_cfi0[12]: Use host-utils.h ctz32()
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH] hw/pflash_cfi0[12]: Use host-utils.h ctz32() |
Date: |
Tue, 18 Sep 2012 14:53:42 +0100 |
Drop the private reimplementation of ctz32() from pflash_cfi0[12]
in favour of using the standard version from host-utils.h.
Signed-off-by: Peter Maydell <address@hidden>
---
hw/pflash_cfi01.c | 37 +------------------------------------
hw/pflash_cfi02.c | 37 +------------------------------------
2 files changed, 2 insertions(+), 72 deletions(-)
diff --git a/hw/pflash_cfi01.c b/hw/pflash_cfi01.c
index d1c7423..00f1cdd 100644
--- a/hw/pflash_cfi01.c
+++ b/hw/pflash_cfi01.c
@@ -41,6 +41,7 @@
#include "block.h"
#include "qemu-timer.h"
#include "exec-memory.h"
+#include "host-utils.h"
#define PFLASH_BUG(fmt, ...) \
do { \
@@ -543,42 +544,6 @@ static const MemoryRegionOps pflash_cfi01_ops_le = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
-/* Count trailing zeroes of a 32 bits quantity */
-static int ctz32 (uint32_t n)
-{
- int ret;
-
- ret = 0;
- if (!(n & 0xFFFF)) {
- ret += 16;
- n = n >> 16;
- }
- if (!(n & 0xFF)) {
- ret += 8;
- n = n >> 8;
- }
- if (!(n & 0xF)) {
- ret += 4;
- n = n >> 4;
- }
- if (!(n & 0x3)) {
- ret += 2;
- n = n >> 2;
- }
- if (!(n & 0x1)) {
- ret++;
-#if 0 /* This is not necessary as n is never 0 */
- n = n >> 1;
-#endif
- }
-#if 0 /* This is not necessary as n is never 0 */
- if (!n)
- ret++;
-#endif
-
- return ret;
-}
-
pflash_t *pflash_cfi01_register(target_phys_addr_t base,
DeviceState *qdev, const char *name,
target_phys_addr_t size,
diff --git a/hw/pflash_cfi02.c b/hw/pflash_cfi02.c
index 3e2002e..8cb1549 100644
--- a/hw/pflash_cfi02.c
+++ b/hw/pflash_cfi02.c
@@ -40,6 +40,7 @@
#include "qemu-timer.h"
#include "block.h"
#include "exec-memory.h"
+#include "host-utils.h"
//#define PFLASH_DEBUG
#ifdef PFLASH_DEBUG
@@ -575,42 +576,6 @@ static const MemoryRegionOps pflash_cfi02_ops_le = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
-/* Count trailing zeroes of a 32 bits quantity */
-static int ctz32 (uint32_t n)
-{
- int ret;
-
- ret = 0;
- if (!(n & 0xFFFF)) {
- ret += 16;
- n = n >> 16;
- }
- if (!(n & 0xFF)) {
- ret += 8;
- n = n >> 8;
- }
- if (!(n & 0xF)) {
- ret += 4;
- n = n >> 4;
- }
- if (!(n & 0x3)) {
- ret += 2;
- n = n >> 2;
- }
- if (!(n & 0x1)) {
- ret++;
-#if 0 /* This is not necessary as n is never 0 */
- n = n >> 1;
-#endif
- }
-#if 0 /* This is not necessary as n is never 0 */
- if (!n)
- ret++;
-#endif
-
- return ret;
-}
-
pflash_t *pflash_cfi02_register(target_phys_addr_t base,
DeviceState *qdev, const char *name,
target_phys_addr_t size,
--
1.7.9.5
- [Qemu-devel] [PATCH] hw/pflash_cfi0[12]: Use host-utils.h ctz32(),
Peter Maydell <=