linux-kernel - [PATCH] misc: xilinx-sdfec: fix dependency and build error

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Date:   Tue, 13 Aug 2019 16:01:20 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Derek Kiernan <derek.kiernan@...inx.com>,
        Dragan Cvetic <dragan.cvetic@...inx.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH] misc: xilinx-sdfec: fix dependency and build error

From: Randy Dunlap <rdunlap@...radead.org>

lib/devres.c, which implements devm_ioremap_resource(), is only built
when CONFIG_HAS_IOMEM is set/enabled, so XILINX_SDFEC should depend
on HAS_IOMEM.  Fixes this build error (as seen on UML builds):

ERROR: "devm_ioremap_resource" [drivers/misc/xilinx_sdfec.ko] undefined!

Fixes: 76d83e1c3233 ("misc: xilinx-sdfec: add core driver")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Derek Kiernan <derek.kiernan@...inx.com>
Cc: Dragan Cvetic <dragan.cvetic@...inx.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Arnd Bergmann <arnd@...db.de>
---
 drivers/misc/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- lnx-53-rc4.orig/drivers/misc/Kconfig
+++ lnx-53-rc4/drivers/misc/Kconfig
@@ -465,6 +465,7 @@ config PCI_ENDPOINT_TEST
 
 config XILINX_SDFEC
 	tristate "Xilinx SDFEC 16"
+	depends on HAS_IOMEM
 	help
 	  This option enables support for the Xilinx SDFEC (Soft Decision
 	  Forward Error Correction) driver. This enables a char driver