* [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv()
@ 2021-04-08 11:31 Wang Wensheng
2021-04-08 16:50 ` Bart Van Assche
2021-04-12 18:47 ` Bart Van Assche
0 siblings, 2 replies; 5+ messages in thread
From: Wang Wensheng @ 2021-04-08 11:31 UTC (permalink / raw)
To: bvanassche, dledford, jgg, linux-rdma, target-devel, linux-kernel
Cc: rui.xiang
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: db7683d7deb2 ("IB/srpt: Fix login-related race conditions")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
---
drivers/infiniband/ulp/srpt/ib_srpt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 98a393d..ea44780 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2382,6 +2382,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
dev_name(&sdev->device->dev), port_num);
mutex_unlock(&sport->mutex);
+ ret = -EINVAL;
goto reject;
}
--
2.9.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv()
2021-04-08 11:31 [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv() Wang Wensheng
@ 2021-04-08 16:50 ` Bart Van Assche
2021-04-12 18:09 ` Jason Gunthorpe
2021-04-12 18:47 ` Bart Van Assche
1 sibling, 1 reply; 5+ messages in thread
From: Bart Van Assche @ 2021-04-08 16:50 UTC (permalink / raw)
To: Wang Wensheng, dledford, jgg, linux-rdma, target-devel, linux-kernel
Cc: rui.xiang
On 4/8/21 4:31 AM, Wang Wensheng wrote:
> Fix to return a negative error code from the error handling
> case instead of 0, as done elsewhere in this function.
>
> Fixes: db7683d7deb2 ("IB/srpt: Fix login-related race conditions")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
> ---
> drivers/infiniband/ulp/srpt/ib_srpt.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
> index 98a393d..ea44780 100644
> --- a/drivers/infiniband/ulp/srpt/ib_srpt.c
> +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
> @@ -2382,6 +2382,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
> pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
> dev_name(&sdev->device->dev), port_num);
> mutex_unlock(&sport->mutex);
> + ret = -EINVAL;
> goto reject;
> }
Please fix the Hulk Robot. The following code occurs three lines above
the modified code:
ret = -EINVAL;
Thanks,
Bart.
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv()
2021-04-08 16:50 ` Bart Van Assche
@ 2021-04-12 18:09 ` Jason Gunthorpe
2021-04-12 18:46 ` Bart Van Assche
0 siblings, 1 reply; 5+ messages in thread
From: Jason Gunthorpe @ 2021-04-12 18:09 UTC (permalink / raw)
To: Bart Van Assche
Cc: Wang Wensheng, dledford, linux-rdma, target-devel, linux-kernel,
rui.xiang
On Thu, Apr 08, 2021 at 09:50:30AM -0700, Bart Van Assche wrote:
> On 4/8/21 4:31 AM, Wang Wensheng wrote:
> > Fix to return a negative error code from the error handling
> > case instead of 0, as done elsewhere in this function.
> >
> > Fixes: db7683d7deb2 ("IB/srpt: Fix login-related race conditions")
> > Reported-by: Hulk Robot <hulkci@huawei.com>
> > Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
> > drivers/infiniband/ulp/srpt/ib_srpt.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
> > index 98a393d..ea44780 100644
> > +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
> > @@ -2382,6 +2382,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
> > pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
> > dev_name(&sdev->device->dev), port_num);
> > mutex_unlock(&sport->mutex);
> > + ret = -EINVAL;
> > goto reject;
> > }
>
> Please fix the Hulk Robot. The following code occurs three lines above
> the modified code:
>
> ret = -EINVAL;
That is a different if.
The patch looks correct to me, please check again:
ret = srpt_create_ch_ib(ch);
if (ret) {
// Ret is proven to be 0
[..]
if (!sport->enabled) {
rej->reason = cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
dev_name(&sdev->device->dev), port_num);
goto reject; // Ret is 0
If there is an assignment to ret between those two blocks it is hidden..
Jason
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv()
2021-04-12 18:09 ` Jason Gunthorpe
@ 2021-04-12 18:46 ` Bart Van Assche
0 siblings, 0 replies; 5+ messages in thread
From: Bart Van Assche @ 2021-04-12 18:46 UTC (permalink / raw)
To: Jason Gunthorpe
Cc: Wang Wensheng, dledford, linux-rdma, target-devel, linux-kernel,
rui.xiang
On 4/12/21 11:09 AM, Jason Gunthorpe wrote:
> On Thu, Apr 08, 2021 at 09:50:30AM -0700, Bart Van Assche wrote:
>> On 4/8/21 4:31 AM, Wang Wensheng wrote:
>>> Fix to return a negative error code from the error handling
>>> case instead of 0, as done elsewhere in this function.
>>>
>>> Fixes: db7683d7deb2 ("IB/srpt: Fix login-related race conditions")
>>> Reported-by: Hulk Robot <hulkci@huawei.com>
>>> Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
>>> drivers/infiniband/ulp/srpt/ib_srpt.c | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
>>> index 98a393d..ea44780 100644
>>> +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
>>> @@ -2382,6 +2382,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
>>> pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
>>> dev_name(&sdev->device->dev), port_num);
>>> mutex_unlock(&sport->mutex);
>>> + ret = -EINVAL;
>>> goto reject;
>>> }
>>
>> Please fix the Hulk Robot. The following code occurs three lines above
>> the modified code:
>>
>> ret = -EINVAL;
>
> That is a different if.
>
> The patch looks correct to me, please check again:
>
> ret = srpt_create_ch_ib(ch);
> if (ret) {
> // Ret is proven to be 0
>
> [..]
>
> if (!sport->enabled) {
> rej->reason = cpu_to_be32(
> SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
> pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
> dev_name(&sdev->device->dev), port_num);
> goto reject; // Ret is 0
>
> If there is an assignment to ret between those two blocks it is hidden..
Right, I was looking at another if-statement in the same function.
Bart.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv()
2021-04-08 11:31 [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv() Wang Wensheng
2021-04-08 16:50 ` Bart Van Assche
@ 2021-04-12 18:47 ` Bart Van Assche
1 sibling, 0 replies; 5+ messages in thread
From: Bart Van Assche @ 2021-04-12 18:47 UTC (permalink / raw)
To: Wang Wensheng, dledford, jgg, linux-rdma, target-devel, linux-kernel
Cc: rui.xiang
On 4/8/21 4:31 AM, Wang Wensheng wrote:
> Fix to return a negative error code from the error handling
> case instead of 0, as done elsewhere in this function.
>
> Fixes: db7683d7deb2 ("IB/srpt: Fix login-related race conditions")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
> ---
> drivers/infiniband/ulp/srpt/ib_srpt.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
> index 98a393d..ea44780 100644
> --- a/drivers/infiniband/ulp/srpt/ib_srpt.c
> +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
> @@ -2382,6 +2382,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
> pr_info("rejected SRP_LOGIN_REQ because target %s_%d is not enabled\n",
> dev_name(&sdev->device->dev), port_num);
> mutex_unlock(&sport->mutex);
> + ret = -EINVAL;
> goto reject;
> }
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-04-08 11:31 [PATCH -next] RDMA/srpt: Fix error return code in srpt_cm_req_recv() Wang Wensheng
2021-04-08 16:50 ` Bart Van Assche
2021-04-12 18:09 ` Jason Gunthorpe
2021-04-12 18:46 ` Bart Van Assche
2021-04-12 18:47 ` Bart Van Assche
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