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| author | Stafford Horne <shorne@gmail.com> | 2022-07-29 13:54:08 +0300 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2022-07-29 23:50:15 +0300 |
| commit | 52e0ea900202d23843daee8f7089817e81dd3dd7 (patch) | |
| tree | 9f69d994f2db7e8e57e4303f59eae4e229f90235 /arch/openrisc/include | |
| parent | 3d316164e9a9699c322e003a37f528e8aecda24e (diff) | |
| download | linux-52e0ea900202d23843daee8f7089817e81dd3dd7.tar.xz | |
openrisc: io: Define iounmap argument as volatile
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>
Diffstat (limited to 'arch/openrisc/include')
| -rw-r--r-- | arch/openrisc/include/asm/io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h index 625ac6ad1205..ee6043a03173 100644 --- a/arch/openrisc/include/asm/io.h +++ b/arch/openrisc/include/asm/io.h @@ -31,7 +31,7 @@ void __iomem *ioremap(phys_addr_t offset, unsigned long size); #define iounmap iounmap -extern void iounmap(void __iomem *addr); +extern void iounmap(volatile void __iomem *addr); #include <asm-generic/io.h> |