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* re: qlcnic: flash template based firmware reset recovery
@ 2014-01-30 11:46 Dan Carpenter
  2014-01-30 20:47 ` Sony Chacko
  0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2014-01-30 11:46 UTC (permalink / raw)
  To: kernel-janitors

Hello Sony Chacko,

The patch 81d0aeb0a4ff: "qlcnic: flash template based firmware reset
recovery" from Jan 1, 2013, leads to the following static checker
warning:

	drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c:1756
		qlcnic_83xx_poll_list()
	warn: we tested 'delay' before and it was 'true'

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
  1745          delay = (long)p_hdr->delay;
  1746  
  1747          if (!delay) {
                    ^^^^^^

  1748                  for (i = 0; i < p_hdr->count; i++, entry++)
  1749                          qlcnic_83xx_poll_reg(p_dev, entry->arg1,
  1750                                               delay, poll->mask,
  1751                                               poll->status);
  1752          } else {
  1753                  for (i = 0; i < p_hdr->count; i++, entry++) {
  1754                          arg1 = entry->arg1;
  1755                          arg2 = entry->arg2;
  1756                          if (delay) {
                                    ^^^^^
"delay" is non-zero here.  No need to check again.

  1757                                  if (qlcnic_83xx_poll_reg(p_dev,
  1758                                                           arg1, delay,
  1759                                                           poll->mask,
  1760                                                           poll->status)){
  1761                                          QLCRD32(p_dev, arg1, &err);
  1762                                          if (err = -EIO)
  1763                                                  return;
  1764                                          QLCRD32(p_dev, arg2, &err);
  1765                                          if (err = -EIO)
  1766                                                  return;

But my main reason for emailing is that I'm confused by the error
handling here.  qlcnic_83xx_poll_reg() returns zero on success or
positive timeout or a negative error code.  How does calling
QLCRD32() fix the error?

  1767                                  }
  1768                          }
  1769                  }
  1770          }

regards,
dan carpenter


^ permalink raw reply	[flat|nested] 2+ messages in thread

* RE: qlcnic: flash template based firmware reset recovery
  2014-01-30 11:46 qlcnic: flash template based firmware reset recovery Dan Carpenter
@ 2014-01-30 20:47 ` Sony Chacko
  0 siblings, 0 replies; 2+ messages in thread
From: Sony Chacko @ 2014-01-30 20:47 UTC (permalink / raw)
  To: kernel-janitors

> -----Original Message-----
> From: Dan Carpenter [mailto:dan.carpenter@oracle.com]
> Sent: Thursday, January 30, 2014 3:46 AM
> To: Sony Chacko
> Cc: kernel-janitors@vger.kernel.org
> Subject: re: qlcnic: flash template based firmware reset recovery
> 
> Hello Sony Chacko,
> 
> The patch 81d0aeb0a4ff: "qlcnic: flash template based firmware reset
> recovery" from Jan 1, 2013, leads to the following static checker
> warning:
> 
> 	drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c:1756
> 		qlcnic_83xx_poll_list()
> 	warn: we tested 'delay' before and it was 'true'
> 
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
>   1745          delay = (long)p_hdr->delay;
>   1746
>   1747          if (!delay) {
>                     ^^^^^^
> 
>   1748                  for (i = 0; i < p_hdr->count; i++, entry++)
>   1749                          qlcnic_83xx_poll_reg(p_dev, entry->arg1,
>   1750                                               delay, poll->mask,
>   1751                                               poll->status);
>   1752          } else {
>   1753                  for (i = 0; i < p_hdr->count; i++, entry++) {
>   1754                          arg1 = entry->arg1;
>   1755                          arg2 = entry->arg2;
>   1756                          if (delay) {
>                                     ^^^^^ "delay" is non-zero here.  No need to check again.
> 
>   1757                                  if (qlcnic_83xx_poll_reg(p_dev,
>   1758                                                           arg1, delay,
>   1759                                                           poll->mask,
>   1760                                                           poll->status)){
>   1761                                          QLCRD32(p_dev, arg1, &err);
>   1762                                          if (err = -EIO)
>   1763                                                  return;
>   1764                                          QLCRD32(p_dev, arg2, &err);
>   1765                                          if (err = -EIO)
>   1766                                                  return;
> 
> But my main reason for emailing is that I'm confused by the error handling
> here.  qlcnic_83xx_poll_reg() returns zero on success or positive timeout or a
> negative error code.  How does calling
> QLCRD32() fix the error?

Dan,

Thanks, We will fix these issues in the upcoming patches.

Regards,
Sony

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2014-01-30 11:46 qlcnic: flash template based firmware reset recovery Dan Carpenter
2014-01-30 20:47 ` Sony Chacko

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