[PATCH v2 07/10] libvhost-user: Switch to unsigned int for inuse field in struct VuVirtq

[Marcel Holtmann]

It seems there is no need to keep the inuse field signed and end up with
compiler warnings for sign-compare.

  CC       libvhost-user.o
libvhost-user.c: In function ‘vu_queue_pop’:
libvhost-user.c:2763:19: error: comparison of integer expressions of different 
signedness: ‘int’ and ‘unsigned int’ [-Werror=sign-compare]
 2763 |     if (vq->inuse >= vq->vring.num) {
      |                   ^~
libvhost-user.c: In function ‘vu_queue_rewind’:
libvhost-user.c:2808:13: error: comparison of integer expressions of different 
signedness: ‘unsigned int’ and ‘int’ [-Werror=sign-compare]
 2808 |     if (num > vq->inuse) {
      |             ^

Instead of casting the comparison to unsigned int, just make the inuse
field unsigned int in the fist place.

Signed-off-by: Marcel Holtmann <mar...@holtmann.org>
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 subprojects/libvhost-user/libvhost-user.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/subprojects/libvhost-user/libvhost-user.h 
b/subprojects/libvhost-user/libvhost-user.h
index aea7ec5061d5..8cda9b8f577a 100644
--- a/subprojects/libvhost-user/libvhost-user.h
+++ b/subprojects/libvhost-user/libvhost-user.h
@@ -343,7 +343,7 @@ typedef struct VuVirtq {
     /* Notification enabled? */
     bool notification;
 
-    int inuse;
+    unsigned int inuse;
 
     vu_queue_handler_cb handler;
 
-- 
2.38.1