* [PATCH -next] vdpasim: Fix some coccinelle warnings
@ 2020-05-09 2:20 ` Samuel Zou
0 siblings, 0 replies; 2+ messages in thread
From: Samuel Zou @ 2020-05-09 2:20 UTC (permalink / raw)
To: mst, jasowang; +Cc: virtualization, linux-kernel, Samuel Zou
Fix below warnings reported by coccicheck:
drivers/vdpa/vdpa_sim/vdpa_sim.c:104:1-10: WARNING: Assignment of 0/1 to bool variable
drivers/vdpa/vdpa_sim/vdpa_sim.c:164:7-11: WARNING: Unsigned expression compared with zero: read <= 0
drivers/vdpa/vdpa_sim/vdpa_sim.c:169:7-12: WARNING: Unsigned expression compared with zero: write <= 0
1. The 'ready' variable in vdpasim_virtqueue struct is bool type.
It is better to initialize vq->ready to false
2. Modify 'read' and 'write' variables type from size_t to ssize_t.
And preserve the reverse christmas tree ordering of local variables.
Fixes: 2c53d0f64c06 ("vdpasim: vDPA device simulator")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 01c456f..c7334cc 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -101,7 +101,7 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
static void vdpasim_vq_reset(struct vdpasim_virtqueue *vq)
{
- vq->ready = 0;
+ vq->ready = false;
vq->desc_addr = 0;
vq->driver_addr = 0;
vq->device_addr = 0;
@@ -131,9 +131,10 @@ static void vdpasim_work(struct work_struct *work)
vdpasim, work);
struct vdpasim_virtqueue *txq = &vdpasim->vqs[1];
struct vdpasim_virtqueue *rxq = &vdpasim->vqs[0];
- size_t read, write, total_write;
- int err;
+ ssize_t read, write;
+ size_t total_write;
int pkts = 0;
+ int err;
spin_lock(&vdpasim->lock);
--
2.6.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH -next] vdpasim: Fix some coccinelle warnings
@ 2020-05-09 2:20 ` Samuel Zou
0 siblings, 0 replies; 2+ messages in thread
From: Samuel Zou @ 2020-05-09 2:20 UTC (permalink / raw)
To: mst, jasowang; +Cc: virtualization, linux-kernel, Samuel Zou
Fix below warnings reported by coccicheck:
drivers/vdpa/vdpa_sim/vdpa_sim.c:104:1-10: WARNING: Assignment of 0/1 to bool variable
drivers/vdpa/vdpa_sim/vdpa_sim.c:164:7-11: WARNING: Unsigned expression compared with zero: read <= 0
drivers/vdpa/vdpa_sim/vdpa_sim.c:169:7-12: WARNING: Unsigned expression compared with zero: write <= 0
1. The 'ready' variable in vdpasim_virtqueue struct is bool type.
It is better to initialize vq->ready to false
2. Modify 'read' and 'write' variables type from size_t to ssize_t.
And preserve the reverse christmas tree ordering of local variables.
Fixes: 2c53d0f64c06 ("vdpasim: vDPA device simulator")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 01c456f..c7334cc 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -101,7 +101,7 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
static void vdpasim_vq_reset(struct vdpasim_virtqueue *vq)
{
- vq->ready = 0;
+ vq->ready = false;
vq->desc_addr = 0;
vq->driver_addr = 0;
vq->device_addr = 0;
@@ -131,9 +131,10 @@ static void vdpasim_work(struct work_struct *work)
vdpasim, work);
struct vdpasim_virtqueue *txq = &vdpasim->vqs[1];
struct vdpasim_virtqueue *rxq = &vdpasim->vqs[0];
- size_t read, write, total_write;
- int err;
+ ssize_t read, write;
+ size_t total_write;
int pkts = 0;
+ int err;
spin_lock(&vdpasim->lock);
--
2.6.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
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