linux/arch/openrisc
Stafford Horne 405ea6d706 openrisc: io: Define iounmap argument as volatile
[ Upstream commit 52e0ea9002 ]

When OpenRISC enables PCI it allows for more drivers to be compiled
resulting in exposing the following with -Werror.

    drivers/video/fbdev/riva/fbdev.c: In function 'rivafb_probe':
    drivers/video/fbdev/riva/fbdev.c:2062:42: error:
	    passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type

    drivers/video/fbdev/nvidia/nvidia.c: In function 'nvidiafb_probe':
    drivers/video/fbdev/nvidia/nvidia.c:1414:20: error:
	    passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type

    drivers/scsi/aic7xxx/aic7xxx_osm.c: In function 'ahc_platform_free':
    drivers/scsi/aic7xxx/aic7xxx_osm.c:1231:41: error:
	    passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type

Most architectures define the iounmap argument to be volatile.  To fix this
issue we do the same for OpenRISC.  This patch must go before PCI is enabled on
OpenRISC to avoid any compile failures.

Link: https://lore.kernel.org/lkml/20220729033728.GA2195022@roeck-us.net/
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-25 11:40:38 +02:00
..
boot openrisc/litex: Add ethernet device 2021-08-31 22:41:46 +09:00
configs openrisc/litex: Update defconfig 2021-08-31 22:41:46 +09:00
include openrisc: io: Define iounmap argument as volatile 2022-08-25 11:40:38 +02:00
kernel openrisc: start CPU timer early in boot 2022-06-09 10:22:38 +02:00
lib openrisc: rename or32 code & comments to or1k 2021-08-05 10:53:59 +09:00
mm openrisc: io: Define iounmap argument as volatile 2022-08-25 11:40:38 +02:00
Kbuild openrisc: add arch/openrisc/Kbuild 2021-01-18 20:53:14 +09:00
Kconfig Tracing updates for 5.15: 2021-09-05 11:50:41 -07:00
Kconfig.debug treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild 2021-05-26 23:10:37 +09:00