linux-kernel - Re: [GIT PULL] dmaengine updates for 4.3-rc1

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Message-ID: <CA+55aFw9B6Q4KiScx-u90MN-LjoJO-FTGCaftum5DMPWdTp93Q@mail.gmail.com>
Date:	Fri, 4 Sep 2015 11:13:27 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	dma <dmaengine@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] dmaengine updates for 4.3-rc1

On Wed, Sep 2, 2015 at 11:41 PM, Vinod Koul <vinod.koul@...el.com> wrote:
>
> Here is the dmaengine update for 4.3-rc1.

Ugh. Something horrible happened here.

> New devices added are:
> - dma controller in sun[457]i SoCs

This thing is completely broken and causes a lot of nasty error
messages on 64-bit:

  drivers/dma/sun4i-dma.c: In function ‘find_and_use_pchan’:
  drivers/dma/sun4i-dma.c:241:32: warning: passing argument 1 of
‘find_next_zero_bit’ from incompatible pointer type
[-Wincompatible-pointer-types]
  ...

and this needs to be fixed.

I've removed the COMPILE_TEST option for that config in the meantime,
because I refuse to have my screen fill up with warnings like this.

COMPILE_TEST is fine for drivers that are supposed to compile cleanly
even if they might not work - and encouraging people to _keep_ them
compiling cleanly and get better compile test coverage.

But it's not fine for stuff that causes big warnings and might hide
actual real problems.

                   Linus
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