From: Vladimir Oltean <vladimir.oltean@xxxxxxx>
[ Upstream commit d564fa1ff19e893e2971d66e5c8f49dc1cdc8ffc ]
Commit c1d55d50139b ("asm-generic/io.h: Fix sparse warnings on
big-endian architectures") missed fixing the 64-bit accessors.
Arnd explains in the attached link why the casts are necessary, even if
__raw_readq() and __raw_writeq() do not take endian-specific types.
Link: https://lore.kernel.org/lkml/9105d6fc-880b-4734-857d-e3d30b87ccf6@xxxxxxxxxxxxxxxx/
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
include/asm-generic/io.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index a68f8fbf423be..cde032f86856e 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -236,7 +236,7 @@ static inline u64 readq(const volatile void __iomem *addr)
log_read_mmio(64, addr, _THIS_IP_);
__io_br();
- val = __le64_to_cpu(__raw_readq(addr));
+ val = __le64_to_cpu((__le64 __force)__raw_readq(addr));
__io_ar(val);
log_post_read_mmio(val, 64, addr, _THIS_IP_);
return val;
@@ -287,7 +287,7 @@ static inline void writeq(u64 value, volatile void __iomem *addr)
{
log_write_mmio(value, 64, addr, _THIS_IP_);
__io_bw();
- __raw_writeq(__cpu_to_le64(value), addr);
+ __raw_writeq((u64 __force)__cpu_to_le64(value), addr);
__io_aw();
log_post_write_mmio(value, 64, addr, _THIS_IP_);
}
--
2.39.2
