davinci compiler warnings

2014-07-17 Thread Hans Verkuil 
Hi Prabhakar,

Can you take a look at these new warnings? I've just upgraded my compiler for
the daily build to 4.9.1, so that's probably why they weren't seen before.

Regards,

Hans

/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c: 
In function 'vpif_remove':
/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:1389:36:
 warning: iteration 1u invokes undefined behavior 
[-Waggressive-loop-optimizations]
   vb2_dma_contig_cleanup_ctx(common-alloc_ctx);
^
/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:1385:2:
 note: containing loop
  for (i = 0; i  VPIF_DISPLAY_MAX_DEVICES; i++) {
  ^
/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c: 
In function 'vpif_remove':
/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1581:36:
 warning: iteration 1u invokes undefined behavior 
[-Waggressive-loop-optimizations]
   vb2_dma_contig_cleanup_ctx(common-alloc_ctx);
^
/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1577:2:
 note: containing loop
  for (i = 0; i  VPIF_CAPTURE_MAX_DEVICES; i++) {
  ^
/home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1580:23:
 warning: array subscript is above array bounds [-Warray-bounds]
   common = ch-common[i];
   ^
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Re: davinci compiler warnings

2014-07-17 Thread Prabhakar Lad 
Hi Hans

On Thu, Jul 17, 2014 at 8:41 PM, Hans Verkuil hverk...@xs4all.nl wrote:
 Hi Prabhakar,

 Can you take a look at these new warnings? I've just upgraded my compiler for
 the daily build to 4.9.1, so that's probably why they weren't seen before.

Ok will look at it. BTW are these errors from the media/master branch or
from your tree ?

Thanks,
--Prabhakar Lad

 Regards,

 Hans

 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:
  In function 'vpif_remove':
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:1389:36:
  warning: iteration 1u invokes undefined behavior 
 [-Waggressive-loop-optimizations]
vb2_dma_contig_cleanup_ctx(common-alloc_ctx);
 ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:1385:2:
  note: containing loop
   for (i = 0; i  VPIF_DISPLAY_MAX_DEVICES; i++) {
   ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:
  In function 'vpif_remove':
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1581:36:
  warning: iteration 1u invokes undefined behavior 
 [-Waggressive-loop-optimizations]
vb2_dma_contig_cleanup_ctx(common-alloc_ctx);
 ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1577:2:
  note: containing loop
   for (i = 0; i  VPIF_CAPTURE_MAX_DEVICES; i++) {
   ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1580:23:
  warning: array subscript is above array bounds [-Warray-bounds]
common = ch-common[i];
^
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Re: davinci compiler warnings

2014-07-17 Thread Hans Verkuil 
On 07/17/2014 09:49 PM, Prabhakar Lad wrote:
 Hi Hans
 
 On Thu, Jul 17, 2014 at 8:41 PM, Hans Verkuil hverk...@xs4all.nl wrote:
 Hi Prabhakar,

 Can you take a look at these new warnings? I've just upgraded my compiler for
 the daily build to 4.9.1, so that's probably why they weren't seen before.

 Ok will look at it. BTW are these errors from the media/master branch or
 from your tree ?

media/master

 
 Thanks,
 --Prabhakar Lad
 
 Regards,

 Hans

 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:
  In function 'vpif_remove':
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:1389:36:
  warning: iteration 1u invokes undefined behavior 
 [-Waggressive-loop-optimizations]
vb2_dma_contig_cleanup_ctx(common-alloc_ctx);
 ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_display.c:1385:2:
  note: containing loop
   for (i = 0; i  VPIF_DISPLAY_MAX_DEVICES; i++) {
   ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:
  In function 'vpif_remove':
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1581:36:
  warning: iteration 1u invokes undefined behavior 
 [-Waggressive-loop-optimizations]
vb2_dma_contig_cleanup_ctx(common-alloc_ctx);
 ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1577:2:
  note: containing loop
   for (i = 0; i  VPIF_CAPTURE_MAX_DEVICES; i++) {
   ^
 /home/hans/work/build/media-git/drivers/media/platform/davinci/vpif_capture.c:1580:23:
  warning: array subscript is above array bounds [-Warray-bounds]
common = ch-common[i];
^
 --
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