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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/mm/ioremap.c | |
| 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/mm/ioremap.c')
| -rw-r--r-- | arch/openrisc/mm/ioremap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c index daae13a76743..8ec0dafecf25 100644 --- a/arch/openrisc/mm/ioremap.c +++ b/arch/openrisc/mm/ioremap.c @@ -77,7 +77,7 @@ void __iomem *__ref ioremap(phys_addr_t addr, unsigned long size) } EXPORT_SYMBOL(ioremap); -void iounmap(void __iomem *addr) +void iounmap(volatile void __iomem *addr) { /* If the page is from the fixmap pool then we just clear out * the fixmap mapping. |