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* [PATCH] ivshmem: remove unnecessary checks for unsigned
@ 2010-09-03  1:54 ` Hidetoshi Seto
  0 siblings, 0 replies; 8+ messages in thread
From: Hidetoshi Seto @ 2010-09-03  1:54 UTC (permalink / raw)
  To: kvm, qemu-devel; +Cc: Cam Macdonell, Hao, Xudong

fixes gcc 4.1 warning:
 In function 'ivshmem_io_writel':
 202: warning: comparison is always false due to limited range of data type
 208: warning: comparison is always true due to limited range of data type

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
---
 hw/ivshmem.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/ivshmem.c b/hw/ivshmem.c
index bbb5cba..afebbc3 100644
--- a/hw/ivshmem.c
+++ b/hw/ivshmem.c
@@ -199,13 +199,13 @@ static void ivshmem_io_writel(void *opaque, target_phys_addr_t addr,
 
         case DOORBELL:
             /* check that dest VM ID is reasonable */
-            if ((dest < 0) || (dest > s->max_peer)) {
+            if (dest > s->max_peer) {
                 IVSHMEM_DPRINTF("Invalid destination VM ID (%d)\n", dest);
                 break;
             }
 
             /* check doorbell range */
-            if ((vector >= 0) && (vector < s->peers[dest].nb_eventfds)) {
+            if (vector < s->peers[dest].nb_eventfds) {
                 IVSHMEM_DPRINTF("Writing %" PRId64 " to VM %d on vector %d\n",
                                                     write_one, dest, vector);
                 if (write(s->peers[dest].eventfds[vector],
-- 
1.7.2.2


^ permalink raw reply related	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2010-09-06  2:00 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-09-03  1:54 [PATCH] ivshmem: remove unnecessary checks for unsigned Hidetoshi Seto
2010-09-03  1:54 ` [Qemu-devel] " Hidetoshi Seto
2010-09-03  2:54 ` Hidetoshi Seto
2010-09-03  2:54   ` [Qemu-devel] " Hidetoshi Seto
2010-09-05  8:21   ` Avi Kivity
2010-09-05  8:21     ` [Qemu-devel] " Avi Kivity
2010-09-06  1:59     ` Hao, Xudong
2010-09-06  1:59       ` [Qemu-devel] " Hao, Xudong

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