Re: [PATCH v4.3-rc7] be2iscsi : Fix bogus WARN_ON length check

[Martin K. Petersen]

Applied.

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Martin K. Petersen  Oracle Linux Engineering
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Re: [PATCH v4.3-rc7] be2iscsi : Fix bogus WARN_ON length check

[Tim Gardner]

On 10/30/2015 02:59 PM, Johannes Thumshirn wrote:
> Hi Tim,
> tim.gard...@canonical.com writes:
> 
>> From: Tim Gardner 
>>
>> drivers/scsi/be2iscsi/be_main.c: In function 'be_sgl_create_contiguous':
>> drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only 
>> applied to the left hand side of comparison [-Wlogical-not-parentheses]
>>   WARN_ON(!length > 0);
>>
>> gcc version 5.2.1
> 
> This patch (or similar) was already posted on Oct 1 by Joel Stanley.
> See http://comments.gmane.org/gmane.linux.scsi/105462
> 
> Thanks,
> Johannes
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Mechanical application of prarens makes that expression more complicated
then it needs to be. It is, after all, an unsigned integer.

rtg
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Tim Gardner tim.gard...@canonical.com
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Re: [PATCH v4.3-rc7] be2iscsi : Fix bogus WARN_ON length check

[Johannes Thumshirn]

Hi Tim,
tim.gard...@canonical.com writes:

> From: Tim Gardner 
>
> drivers/scsi/be2iscsi/be_main.c: In function 'be_sgl_create_contiguous':
> drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only applied 
> to the left hand side of comparison [-Wlogical-not-parentheses]
>   WARN_ON(!length > 0);
>
> gcc version 5.2.1

This patch (or similar) was already posted on Oct 1 by Joel Stanley.
See http://comments.gmane.org/gmane.linux.scsi/105462

Thanks,
Johannes
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Re: [PATCH v4.3-rc7] be2iscsi : Fix bogus WARN_ON length check

[Manoj Kumar]

Tim:

Reviewed-by: Manoj Kumar 

---
Manoj Kumar

On 10/30/2015 1:22 PM, tim.gard...@canonical.com wrote:

From: Tim Gardner 

drivers/scsi/be2iscsi/be_main.c: In function 'be_sgl_create_contiguous':
drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only applied 
to the left hand side of comparison [-Wlogical-not-parentheses]
   WARN_ON(!length > 0);

gcc version 5.2.1

Cc: Jayamohan Kallickal 
Cc: Minh Tran 
Cc: John Soni Jose 
Cc: "James E.J. Bottomley" 
Signed-off-by: Tim Gardner 
---
  drivers/scsi/be2iscsi/be_main.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 7a6dbfb..5cdcd29 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3184,7 +3184,7 @@ be_sgl_create_contiguous(void *virtual_address,
  {
WARN_ON(!virtual_address);
WARN_ON(!physical_address);
-   WARN_ON(!length > 0);
+   WARN_ON(!length);
WARN_ON(!sgl);

sgl->va = virtual_address;



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[PATCH v4.3-rc7] be2iscsi : Fix bogus WARN_ON length check

[tim . gardner]

From: Tim Gardner 

drivers/scsi/be2iscsi/be_main.c: In function 'be_sgl_create_contiguous':
drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only applied 
to the left hand side of comparison [-Wlogical-not-parentheses]
  WARN_ON(!length > 0);

gcc version 5.2.1

Cc: Jayamohan Kallickal 
Cc: Minh Tran 
Cc: John Soni Jose 
Cc: "James E.J. Bottomley" 
Signed-off-by: Tim Gardner 
---
 drivers/scsi/be2iscsi/be_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 7a6dbfb..5cdcd29 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3184,7 +3184,7 @@ be_sgl_create_contiguous(void *virtual_address,
 {
WARN_ON(!virtual_address);
WARN_ON(!physical_address);
-   WARN_ON(!length > 0);
+   WARN_ON(!length);
WARN_ON(!sgl);
 
sgl->va = virtual_address;
-- 
1.9.1

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