* [Qemu-devel] [PATCH v2] virtio-input: add parenthesis to const_le{16, 32}
@ 2016-04-12 5:51 Gerd Hoffmann
2016-04-12 14:51 ` Eric Blake
0 siblings, 1 reply; 2+ messages in thread
From: Gerd Hoffmann @ 2016-04-12 5:51 UTC (permalink / raw)
To: qemu-devel; +Cc: eblake, Gerd Hoffmann, Michael S. Tsirkin
"_x" must be "(_x)" otherwise things fail if you pass in expressions.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
include/hw/virtio/virtio-input.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/hw/virtio/virtio-input.h b/include/hw/virtio/virtio-input.h
index af1c207..169adee 100644
--- a/include/hw/virtio/virtio-input.h
+++ b/include/hw/virtio/virtio-input.h
@@ -15,13 +15,13 @@ typedef struct virtio_input_event virtio_input_event;
#if defined(HOST_WORDS_BIGENDIAN)
# define const_le32(_x) \
- (((_x & 0x000000ffU) << 24) | \
- ((_x & 0x0000ff00U) << 8) | \
- ((_x & 0x00ff0000U) >> 8) | \
- ((_x & 0xff000000U) >> 24))
+ ((((_x) & 0x000000ffU) << 24) | \
+ (((_x) & 0x0000ff00U) << 8) | \
+ (((_x) & 0x00ff0000U) >> 8) | \
+ (((_x) & 0xff000000U) >> 24))
# define const_le16(_x) \
- (((_x & 0x00ff) << 8) | \
- ((_x & 0xff00) >> 8))
+ ((((_x) & 0x00ff) << 8) | \
+ (((_x) & 0xff00) >> 8))
#else
# define const_le32(_x) (_x)
# define const_le16(_x) (_x)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] [PATCH v2] virtio-input: add parenthesis to const_le{16, 32}
2016-04-12 5:51 [Qemu-devel] [PATCH v2] virtio-input: add parenthesis to const_le{16, 32} Gerd Hoffmann
@ 2016-04-12 14:51 ` Eric Blake
0 siblings, 0 replies; 2+ messages in thread
From: Eric Blake @ 2016-04-12 14:51 UTC (permalink / raw)
To: Gerd Hoffmann, qemu-devel; +Cc: Michael S. Tsirkin
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On 04/11/2016 11:51 PM, Gerd Hoffmann wrote:
> "_x" must be "(_x)" otherwise things fail if you pass in expressions.
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
> include/hw/virtio/virtio-input.h | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
Reviewed-by: Eric Blake <eblake@redhat.com>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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