[PATCH v2] tools: PCI: Zero-initialize param

[PATCH v2] tools: PCI: Zero-initialize param

[Shunyong Yang]

The values in param may be random if they are not initialized, which
may cause use_dma flag set even when "-d" option is not provided
in command line. Initializing all members to 0 to solve this.

Signed-off-by: Shunyong Yang <yang.shunyong@gmail.com>
---
v2: Change {0} to {} as Leon Romanovsky's comment.
---
 tools/pci/pcitest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index 0a1344c45213..441b54234635 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -40,7 +40,7 @@ struct pci_test {
 
 static int run_test(struct pci_test *test)
 {
-	struct pci_endpoint_test_xfer_param param;
+	struct pci_endpoint_test_xfer_param param = {};
 	int ret = -EINVAL;
 	int fd;
 
-- 
2.25.1

Re: [PATCH v2] tools: PCI: Zero-initialize param

[Kishon Vijay Abraham I]

On 14/07/21 6:53 pm, Shunyong Yang wrote:
> The values in param may be random if they are not initialized, which
> may cause use_dma flag set even when "-d" option is not provided
> in command line. Initializing all members to 0 to solve this.
> 
> Signed-off-by: Shunyong Yang <yang.shunyong@gmail.com>

Thanks for the fix.

Acked-by: Kishon Vijay Abraham I <kishon@ti.com>


> ---
> v2: Change {0} to {} as Leon Romanovsky's comment.
> ---
>  tools/pci/pcitest.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
> index 0a1344c45213..441b54234635 100644
> --- a/tools/pci/pcitest.c
> +++ b/tools/pci/pcitest.c
> @@ -40,7 +40,7 @@ struct pci_test {
>  
>  static int run_test(struct pci_test *test)
>  {
> -	struct pci_endpoint_test_xfer_param param;
> +	struct pci_endpoint_test_xfer_param param = {};
>  	int ret = -EINVAL;
>  	int fd;
>  
> 

Re: [PATCH v2] tools: PCI: Zero-initialize param

[Shunyong Yang]

Hi, Bjorn,

    Would you please help to review and put this tiny fix (for 
tools/pci/pcitest.c) in your merge queue? Kishon has acked.

Thanks.

Shunyong

On 2021/7/14 21:32, Kishon Vijay Abraham I wrote:
>
> On 14/07/21 6:53 pm, Shunyong Yang wrote:
>> The values in param may be random if they are not initialized, which
>> may cause use_dma flag set even when "-d" option is not provided
>> in command line. Initializing all members to 0 to solve this.
>>
>> Signed-off-by: Shunyong Yang <yang.shunyong@gmail.com>
> Thanks for the fix.
>
> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
>
>
>> ---
>> v2: Change {0} to {} as Leon Romanovsky's comment.
>> ---
>>   tools/pci/pcitest.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
>> index 0a1344c45213..441b54234635 100644
>> --- a/tools/pci/pcitest.c
>> +++ b/tools/pci/pcitest.c
>> @@ -40,7 +40,7 @@ struct pci_test {
>>   
>>   static int run_test(struct pci_test *test)
>>   {
>> -	struct pci_endpoint_test_xfer_param param;
>> +	struct pci_endpoint_test_xfer_param param = {};
>>   	int ret = -EINVAL;
>>   	int fd;
>>   
>>

Re: [PATCH v2] tools: PCI: Zero-initialize param

[Lorenzo Pieralisi]

On Wed, 14 Jul 2021 21:23:31 +0800, Shunyong Yang wrote:
> The values in param may be random if they are not initialized, which
> may cause use_dma flag set even when "-d" option is not provided
> in command line. Initializing all members to 0 to solve this.

Applied to pci/tools, thanks!

[1/1] tools: PCI: Zero-initialize param
      https://git.kernel.org/lpieralisi/pci/c/224d8031e4

Thanks,
Lorenzo