linux-kernel - Re: [PATCH] mtd: nand: fix implicit module.h usage in xway

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Message-ID: <63347d92-15b6-917c-b9f7-d239faaacdeb@hauke-m.de>
Date:   Wed, 21 Dec 2016 16:19:00 +0100
From:   Hauke Mehrtens <hauke@...ke-m.de>
To:     Paul Gortmaker <paul.gortmaker@...driver.com>,
        linux-kernel@...r.kernel.org
Cc:     Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        linux-gpio@...r.kernel.org
Subject: Re: [PATCH] mtd: nand: fix implicit module.h usage in xway_nand.c



On 12/20/2016 10:18 PM, Paul Gortmaker wrote:
> In commit d47529b2e9fe0ec2eb1f072afad8849f52e385c4 ("gpio: don't
> include module.h in shared driver header") we fixed a bunch of
> implicit includes and then did what the shortlog says -- remove
> module.h from a gpio header.
> 
> In parallel, commit 024366750c2e04fdcda8bca685194ef0196b35fe
> ("mtd: nand: xway: convert to normal platform driver") added new
> modular function calls to a file that now became relying on the
> above module.h presence in the gpio header, since it did not
> explicitly include module.h header for them as part of the change.
> 
> The problem only appears when the two dev streams are merged.
> 
> Since the file is tristate, the fix is obvious -- it needs an
> explicit include of module.h header.

Hi Paul,

the xway nand driver does not build as a module, so I made it bool, this
patch:
http://lists.infradead.org/pipermail/linux-mtd/2016-December/070800.html
And then made it use the non module versions here:
http://lists.infradead.org/pipermail/linux-mtd/2016-December/070801.html

In the beginning I also came up with the same patch as you, but the mtd
people suggested to do it differently. I hope my two patches are on
their way into Linus tree.

Hauke