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authorChristoph Hellwig <hch@lst.de>2019-08-11 14:53:20 +0200
committerChristoph Hellwig <hch@lst.de>2019-11-11 21:18:19 +0100
commit97c9801a15e5b0c9a20e495b2ccabf010894e74b (patch)
tree9c5e1f7c2b7d399de0493f9af5433f2e6b51381a /arch/sparc
parente97133959ad2942ae43c81a08858bef01bc0ec18 (diff)
downloadlinux-97c9801a15e5b0c9a20e495b2ccabf010894e74b.tar.bz2
asm-generic: don't provide ioremap for CONFIG_MMU
All MMU-enabled ports have a non-trivial ioremap and should thus provide the prototype for their implementation instead of providing a generic one unless a different symbol is not defined. Note that this only affects sparc32 nds32 as all others do provide their own version. Also update the kerneldoc comments in asm-generic/io.h to explain the situation around the default ioremap* implementations correctly. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/include/asm/io_32.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index df2dc1784673..9a52d9506f80 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -127,6 +127,7 @@ static inline void sbus_memcpy_toio(volatile void __iomem *dst,
* Bus number may be embedded in the higher bits of the physical address.
* This is why we have no bus number argument to ioremap().
*/
+void __iomem *ioremap(phys_addr_t offset, size_t size);
void iounmap(volatile void __iomem *addr);
/* Create a virtual mapping cookie for an IO port range */
void __iomem *ioport_map(unsigned long port, unsigned int nr);