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authorJason Gunthorpe <jgg@nvidia.com>2024-04-11 19:46:16 +0300
committerJason Gunthorpe <jgg@nvidia.com>2024-04-22 23:11:20 +0300
commite7bc47b16622d1016b3b77bbdb20fb9e213045f2 (patch)
tree27d7c119e0b28c8d6999b90763643325b8988ddc /include/linux/io.h
parent6ae798cbef4ba1f180aa1a590e33a2d89f7cc34f (diff)
downloadlinux-e7bc47b16622d1016b3b77bbdb20fb9e213045f2.tar.xz
s390: Stop using weak symbols for __iowrite64_copy()
Complete switching the __iowriteXX_copy() routines over to use #define and arch provided inline/macro functions instead of weak symbols. S390 has an implementation that simply calls another memcpy function. Inline this so the callers don't have to do two jumps. Link: https://lore.kernel.org/r/3-v3-1893cd8b9369+1925-mlx5_arm_wc_jgg@nvidia.com Acked-by: Niklas Schnelle <schnelle@linux.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/linux/io.h')
-rw-r--r--include/linux/io.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/io.h b/include/linux/io.h
index ce86120ce9d5..42e132808f00 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -21,7 +21,10 @@ void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
#endif
void __ioread32_copy(void *to, const void __iomem *from, size_t count);
+
+#ifndef __iowrite64_copy
void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
+#endif
#ifdef CONFIG_MMU
int ioremap_page_range(unsigned long addr, unsigned long end,