• Olof Johansson's avatar
    RISC-V: io.h: type fixes for warnings · fe2726af
    Olof Johansson authored
    include <linux/types.h> for __iomem definition. Also, add volatile to
    iounmap() like other architectures have it to avoid "discarding
    volatile" warnings from some drivers.
    
    Finally, explicitly promote the base address for INB/OUTB functions to
    avoid some old legacy drivers complaining about int-to-ptr promotions.
    The drivers are unlikely to work but they're included in allmodconfig
    so the warnings are noisy.
    
    Fixes, among other warnings, these with allmodconfig:
    
    ../arch/riscv/include/asm/io.h:24:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
     extern void __iomem *ioremap(phys_addr_t offset, unsigned long size);
    
    sound/pci/echoaudio/echoaudio.c: In function 'snd_echo_free':
    sound/pci/echoaudio/echoaudio.c:1879:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers]
    Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
    Signed-off-by: default avatarPalmer Dabbelt <palmer@sifive.com>
    fe2726af
ioremap.c 2.58 KB