From: Vladimir Oltean vladimir.oltean@nxp.com
[ 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@app.fastma... Suggested-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Vladimir Oltean vladimir.oltean@nxp.com Reviewed-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Sasha Levin sashal@kernel.org --- 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 4c44a29b5e8ef..d78c3056c98f9 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_, _RET_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_, _RET_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_, _RET_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_, _RET_IP_); }