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From: Chen Qun <kuhn.chenqun@huawei.com>
To: <qemu-devel@nongnu.org>, <qemu-trivial@nongnu.org>
Cc: zhang.zhanghailiang@huawei.com,
	"Michael S. Tsirkin" <mst@redhat.com>,
	pannengyuan@huawei.com,
	Raphael Norwitz <raphael.norwitz@nutanix.com>,
	Euler Robot <euler.robot@huawei.com>,
	Chen Qun <kuhn.chenqun@huawei.com>
Subject: [PATCH v2 05/10] hw/virtio/vhost-user:Remove dead assignment in scrub_shadow_regions()
Date: Tue, 25 Aug 2020 19:24:42 +0800	[thread overview]
Message-ID: <20200825112447.126308-6-kuhn.chenqun@huawei.com> (raw)
In-Reply-To: <20200825112447.126308-1-kuhn.chenqun@huawei.com>

Clang static code analyzer show warning:
hw/virtio/vhost-user.c:606:9: warning: Value stored to 'mr' is never read
        mr = vhost_user_get_mr_data(reg->userspace_addr, &offset, &fd);
        ^    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
---
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Raphael Norwitz <raphael.norwitz@nutanix.com>
---
 hw/virtio/vhost-user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index d7e2423762..9c5b4f7fbc 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -603,7 +603,7 @@ static void scrub_shadow_regions(struct vhost_dev *dev,
      */
     for (i = 0; i < dev->mem->nregions; i++) {
         reg = &dev->mem->regions[i];
-        mr = vhost_user_get_mr_data(reg->userspace_addr, &offset, &fd);
+        vhost_user_get_mr_data(reg->userspace_addr, &offset, &fd);
         if (fd > 0) {
             ++fd_num;
         }
-- 
2.23.0



  parent reply	other threads:[~2020-08-25 11:28 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-25 11:24 [PATCH v2 00/10] trivial patchs for static code analyzer fixes Chen Qun
2020-08-25 11:24 ` [PATCH v2 01/10] hw/arm/virt-acpi-build:Remove dead assignment in build_madt() Chen Qun
2020-08-26  1:25   ` Li Qiang
2020-08-25 11:24 ` [PATCH v2 02/10] hw/arm/omap1:Remove redundant statement in omap_clkdsp_read() Chen Qun
2020-08-25 12:35   ` Peter Maydell
2020-08-26  1:26   ` Li Qiang
2020-08-25 11:24 ` [PATCH v2 03/10] target/arm/translate-a64:Remove dead assignment in handle_scalar_simd_shli() Chen Qun
2020-08-25 12:37   ` Peter Maydell
2020-08-26  2:42     ` Chenqun (kuhn)
2020-08-25 11:24 ` [PATCH v2 04/10] target/arm/translate-a64:Remove redundant statement in disas_simd_two_reg_misc_fp16() Chen Qun
2020-08-25 12:38   ` Peter Maydell
2020-08-25 11:24 ` Chen Qun [this message]
2020-08-26 10:23   ` [PATCH v2 05/10] hw/virtio/vhost-user:Remove dead assignment in scrub_shadow_regions() Li Qiang
2020-08-25 11:24 ` [PATCH v2 06/10] hw/net/virtio-net:Remove redundant statement in virtio_net_rsc_tcp_ctrl_check() Chen Qun
2020-08-26  1:35   ` Li Qiang
2020-08-25 11:24 ` [PATCH v2 07/10] vfio/platform: Remove dead assignment in vfio_intp_interrupt() Chen Qun
2020-08-25 15:00   ` Stefan Hajnoczi
2020-08-26  1:38   ` Li Qiang
2020-08-26  1:47     ` Chenqun (kuhn)
2020-08-26 10:14       ` Li Qiang
2020-08-25 11:24 ` [PATCH v2 08/10] usb/bus: Remove dead assignment in usb_get_fw_dev_path() Chen Qun
2020-08-25 14:39   ` Markus Armbruster
2020-08-26  1:59     ` Chenqun (kuhn)
2020-08-26  2:25     ` Chenqun (kuhn)
2020-08-25 11:24 ` [PATCH v2 09/10] hw/intc: Remove redundant statement in exynos4210_combiner_read() Chen Qun
2020-08-25 12:41   ` Peter Maydell
2020-08-27  7:00     ` Chenqun (kuhn)
2020-08-27  9:28       ` Peter Maydell
2020-08-25 11:24 ` [PATCH v2 10/10] hw/display/vga:Remove redundant statement in vga_draw_graphic() Chen Qun
2020-08-26  1:54   ` Li Qiang

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