Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches

# gpg: Signature made Tue Apr 28 15:35:05 2015 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (76 commits)
  block: move I/O request processing to block/io.c
  block: extract bdrv_setup_io_funcs()
  block: add bdrv_set_dirty()/bdrv_reset_dirty() to block_int.h
  block: replace bdrv_states iteration with bdrv_next()
  vmdk: Widen before shifting 32 bit header field
  block/dmg: make it modular
  block/mirror: Always call block_job_sleep_ns()
  iotests: add incremental backup granularity tests
  iotests: add incremental backup failure recovery test
  iotests: add simple incremental backup case
  iotests: add QMP event waiting queue
  iotests: add invalid input incremental backup tests
  hbitmap: truncate tests
  block: Resize bitmaps on bdrv_truncate
  block: Ensure consistent bitmap function prototypes
  block: add BdrvDirtyBitmap documentation
  qmp: Add dirty bitmap status field in query-block
  qmp: add block-dirty-bitmap-clear
  qmp: Add support of "dirty-bitmap" sync mode for drive-backup
  block: Add bitmap successors
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 5 insertions, 8 deletions

diff --git a/hw/gpio/omap_gpio.c b/hw/gpio/omap_gpio.c
index 9a43486890..d92f8cfbae 100644
--- a/hw/gpio/omap_gpio.c
+++ b/hw/gpio/omap_gpio.c
@@ -125,8 +125,7 @@ static void omap_gpio_write(void *opaque, hwaddr addr,
     case 0x04:	/* DATA_OUTPUT */
         diff = (s->outputs ^ value) & ~s->dir;
         s->outputs = value;
-        while ((ln = ffs(diff))) {
-            ln --;
+        while ((ln = ctz32(diff)) != 32) {
             if (s->handler[ln])
                 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
             diff &= ~(1 << ln);
@@ -138,8 +137,7 @@ static void omap_gpio_write(void *opaque, hwaddr addr,
         s->dir = value;
 
         value = s->outputs & ~s->dir;
-        while ((ln = ffs(diff))) {
-            ln --;
+        while ((ln = ctz32(diff)) != 32) {
             if (s->handler[ln])
                 qemu_set_irq(s->handler[ln], (value >> ln) & 1);
             diff &= ~(1 << ln);
@@ -253,8 +251,7 @@ static inline void omap2_gpio_module_out_update(struct omap2_gpio_s *s,
 
     s->outputs ^= diff;
     diff &= ~s->dir;
-    while ((ln = ffs(diff))) {
-        ln --;
+    while ((ln = ctz32(diff)) != 32) {
         qemu_set_irq(s->handler[ln], (s->outputs >> ln) & 1);
         diff &= ~(1 << ln);
     }
@@ -442,8 +439,8 @@ static void omap2_gpio_module_write(void *opaque, hwaddr addr,
         s->dir = value;
 
         value = s->outputs & ~s->dir;
-        while ((ln = ffs(diff))) {
-            diff &= ~(1 <<-- ln);
+        while ((ln = ctz32(diff)) != 32) {
+            diff &= ~(1 << ln);
             qemu_set_irq(s->handler[ln], (value >> ln) & 1);
         }