usbredir: reorder fields in USBRedirDevice to reduce padding

[Qemu-devel] [PATCH] usbredir: reorder fields in USBRedirDevice to reduce padding

zhenwei.pi posted 1 patch 7 years, 7 months ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/1520318781-22644-1-git-send-email-zhenwei.pi@youruncloud.com

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hw/usb/redirect.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

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[Qemu-devel] [PATCH] usbredir: reorder fields in USBRedirDevice to reduce padding

Posted by zhenwei.pi 7 years, 7 months ago

Changing the current ordering saves 8 bytes per entry in x86_64.

Signed-off-by: zhenwei.pi <zhenwei.pi@youruncloud.com>
---
 hw/usb/redirect.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index ec17430..65a9196 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -106,10 +106,10 @@ struct USBRedirDevice {
     USBDevice dev;
     /* Properties */
     CharBackend cs;
+    bool enable_streams;
     uint8_t debug;
-    char *filter_str;
     int32_t bootindex;
-    bool enable_streams;
+    char *filter_str;
     /* Data passed from chardev the fd_read cb to the usbredirparser read cb */
     const uint8_t *read_buf;
     int read_buf_size;
-- 
2.7.4