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Re: [PATCH RESEND] ARM: davinci: don't mark vpif_input structures as 'const'

From Sekhar Nori <nsekhar@ti.com>
Newsgroups linux.kernel
Subject Re: [PATCH RESEND] ARM: davinci: don't mark vpif_input structures as 'const'
Date 2017-07-27 13:00 +0200
Message-ID <u7OGm-556-7@gated-at.bofh.it> (permalink)
References <u7O3E-4Qj-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi Arnd,

On Thursday 27 July 2017 03:42 PM, Arnd Bergmann wrote:
> A change to the platform data definitions caused a warning in the board code:
> 
> arch/arm/mach-davinci/board-dm646x-evm.c:680:13: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
> arch/arm/mach-davinci/board-dm646x-evm.c:690:13: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]

You can replace these by:

arch/arm/mach-davinci/board-da850-evm.c:1221:13: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
arch/arm/mach-davinci/board-da850-evm.c:1231:13: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]

to match with this patch.

> 
> This is a bit unfortunate, since we generally like structure definitions to
> be const, but as this is legacy code, the easiest way out is still to
> remove the 'const' annotation here.
> 
> Fixes: 4a5f8ae50b66 ("[media] davinci: vpif_capture: get subdevs from DT when available")
> Fixes: 231ce279e6e3 ("ARM: davinci: fix const warnings")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: Sekhar Nori <nsekhar@ti.com>

Looks like this slipped my testing since I had 
CONFIG_DA850_UI_SD_VIDEO_PORT switched off. Thanks for catching it.

> ---
> I originally sent my fix on Jun 9, but Kevin had already applied an
> identical fix for two of the three affected files. This fixes the
> third one that his patch missed.
> 
> I have a couple of other patches that I'm planning to apply directly
> to the fixes branch now, and would do the same for this one unless
> there are objections.

No problem. Thanks!

~Sekhar

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Thread

[PATCH RESEND] ARM: davinci: don't mark vpif_input structures as 'const' Arnd Bergmann <arnd@arndb.de> - 2017-07-27 12:20 +0200
  Re: [PATCH RESEND] ARM: davinci: don't mark vpif_input structures as  'const' Sekhar Nori <nsekhar@ti.com> - 2017-07-27 13:00 +0200
    Re: [PATCH RESEND] ARM: davinci: don't mark vpif_input structures as 'const' Arnd Bergmann <arnd@arndb.de> - 2017-07-27 13:20 +0200

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