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From:   Miquel Raynal <miquel.raynal@bootlin.com>
To:     Randy Dunlap <rdunlap@infradead.org>,
        linux-mtd@lists.infradead.org, LKML <linux-kernel@vger.kernel.org>
Cc:     Miquel Raynal <miquel.raynal@bootlin.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Vignesh Raghavendra <vigneshr@ti.com>
Subject: Re: [PATCH] mtd: hyperbus: fix dependency and build error
Date:   Thu, 29 Aug 2019 14:36:35 +0200
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On Tue, 2019-08-13 at 23:03:13 UTC, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@infradead.org>
> 
> lib/devres.c, which implements devm_ioremap_resource(), is only built
> when CONFIG_HAS_IOMEM is set/enabled, so MTD_HYPERBUS should depend
> on HAS_IOMEM.  Fixes a build error and a Kconfig warning (as seen on
> UML builds):
> 
> WARNING: unmet direct dependencies detected for MTD_COMPLEX_MAPPINGS
>   Depends on [n]: MTD [=m] && HAS_IOMEM [=n]
>   Selected by [m]:
>   - MTD_HYPERBUS [=m] && MTD [=m]
> 
> ERROR: "devm_ioremap_resource" [drivers/mtd/hyperbus/hyperbus-core.ko] undefined!
> 
> Fixes: dcc7d3446a0f ("mtd: Add support for HyperBus memory devices")
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> Cc: Vignesh Raghavendra <vigneshr@ti.com>
> Cc: Miquel Raynal <miquel.raynal@bootlin.com>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: linux-mtd@lists.infradead.org
> Acked-by: Vignesh Raghavendra <vigneshr@ti.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes, thanks.

Miquel