From: Nathan Chancellor <natechancellor@gmail.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH 0/7] media: atomisp: Address several clang warnings
Date: Wed, 27 May 2020 09:45:21 -0700 [thread overview]
Message-ID: <20200527164521.GA1239557@ubuntu-s3-xlarge-x86> (raw)
In-Reply-To: <20200527104525.5e6cd93b@coco.lan>
On Wed, May 27, 2020 at 10:45:25AM +0200, Mauro Carvalho Chehab wrote:
> Em Wed, 27 May 2020 00:11:43 -0700
> Nathan Chancellor <natechancellor@gmail.com> escreveu:
>
> > Hi all,
> >
> > This series aims to clean up the code while addressing the majority of
> > clang warnings in this driver, some found by the 0day bot and others
> > found by me.
> >
> > There are several enum conversion warnings that happen, which I do not
> > really know how to solve without understanding how exactly this driver
> > works. I would appreciate some guidance or a solution. Below are the
> > warnings, sorry for not wrapping them but they would be hard to read
> > otherwise.
>
> ...
> > ../drivers/staging/media/atomisp//pci/atomisp_compat_css20.h:117:22: note: expanded from macro 'CSS_ID'
> > #define CSS_ID(val) (IA_ ## val)
> ...
>
> I actually wrote a patch getting rid of this ugly thing:
>
> https://git.linuxtv.org/mchehab/experimental.git/commit/?h=atomisp_v3&id=cf6a15543ace1e99364911c0b7a2f6b8f2f43021
>
> This one was already submitted upstream (not merged yet), but there
> are also lots of other patches on my working tree.
Ah excellent, that makes the warnings a lot more readable. I am still
not sure how to reconcile the differences, it might be easier to just
change the types in the struct to int.
../drivers/staging/media/atomisp/pci/atomisp_subdev.c:49:68: warning: implicit conversion from enumeration type 'enum ia_css_frame_format' to different enumeration type 'enum atomisp_input_format' [-Wenum-conversion]
{ V4L2_MBUS_FMT_CUSTOM_NV21, 12, 12, IA_CSS_FRAME_FORMAT_NV21, 0, IA_CSS_FRAME_FORMAT_NV21 },
~ ^~~~~~~~~~~~~~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/atomisp_subdev.c:49:39: warning: implicit conversion from enumeration type 'enum ia_css_frame_format' to different enumeration type 'enum atomisp_input_format' [-Wenum-conversion]
{ V4L2_MBUS_FMT_CUSTOM_NV21, 12, 12, IA_CSS_FRAME_FORMAT_NV21, 0, IA_CSS_FRAME_FORMAT_NV21 },
~ ^~~~~~~~~~~~~~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/atomisp_subdev.c:48:68: warning: implicit conversion from enumeration type 'enum ia_css_frame_format' to different enumeration type 'enum atomisp_input_format' [-Wenum-conversion]
{ V4L2_MBUS_FMT_CUSTOM_NV12, 12, 12, IA_CSS_FRAME_FORMAT_NV12, 0, IA_CSS_FRAME_FORMAT_NV12 },
~ ^~~~~~~~~~~~~~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/atomisp_subdev.c:48:39: warning: implicit conversion from enumeration type 'enum ia_css_frame_format' to different enumeration type 'enum atomisp_input_format' [-Wenum-conversion]
{ V4L2_MBUS_FMT_CUSTOM_NV12, 12, 12, IA_CSS_FRAME_FORMAT_NV12, 0, IA_CSS_FRAME_FORMAT_NV12 },
~ ^~~~~~~~~~~~~~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/atomisp_subdev.c:47:34: warning: implicit conversion from enumeration type 'enum ia_css_frame_format' to different enumeration type 'enum atomisp_input_format' [-Wenum-conversion]
{ MEDIA_BUS_FMT_JPEG_1X8, 8, 8, IA_CSS_FRAME_FORMAT_BINARY_8, 0, ATOMISP_INPUT_FORMAT_BINARY_8 },
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 warnings generated.
> I'll try to apply your patch series on it, once I'll be able to
> fix a bug with mmap support.
It looks like all of them apply to your experimental branch aside from
patch 3, which you handled in a different way.
Cheers,
Nathan
next prev parent reply other threads:[~2020-05-27 16:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 7:11 [PATCH 0/7] media: atomisp: Address several clang warnings Nathan Chancellor
2020-05-27 7:11 ` [PATCH 1/7] media: atomisp: Clean up if block in sh_css_sp_init_stage Nathan Chancellor
2020-05-27 7:11 ` [PATCH 2/7] media: atomisp: Remove second increment of count in atomisp_subdev_probe Nathan Chancellor
2020-05-27 7:11 ` [PATCH 3/7] media: atomisp: Add stub for atomisp_mrfld_power Nathan Chancellor
2020-05-27 7:11 ` [PATCH 4/7] media: atomisp: Remove unnecessary NULL checks in ia_css_pipe_load_extension Nathan Chancellor
2020-05-27 7:11 ` [PATCH 5/7] media: atomisp: Remove unnecessary NULL check in atomisp_param Nathan Chancellor
2020-05-27 7:11 ` [PATCH 6/7] media: atomisp: Avoid overflow in compute_blending Nathan Chancellor
2020-05-27 7:11 ` [PATCH 7/7] media: atomisp: Remove binary_supports_input_format Nathan Chancellor
2020-05-27 8:45 ` [PATCH 0/7] media: atomisp: Address several clang warnings Mauro Carvalho Chehab
2020-05-27 16:45 ` Nathan Chancellor [this message]
2020-05-27 17:20 ` Mauro Carvalho Chehab
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