asm-generic/io.h: suppress endianness warnings for readq() and writeq()

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.

Vladimir Oltean committed 3 years ago

Commit d564fa11 parent fe15c261 file · +2 −2Browse files

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include/asm-generic/io.h+2−2

@@ -236,7 +236,7 @@ static inline u64 readq(const volatile void __iomem *addr) · 235 unmodified lines
236		236
237	log_read_mmio(64, addr, _THIS_IP_, _RET_IP_);	237	log_read_mmio(64, addr, _THIS_IP_, _RET_IP_);
238	__io_br();	238	__io_br();
239	val = __le64_to_cpu(__raw_readq(addr));	239	val = __le64_to_cpu((__le64 __force)__raw_readq(addr));
240	__io_ar(val);	240	__io_ar(val);
241	log_post_read_mmio(val, 64, addr, _THIS_IP_, _RET_IP_);	241	log_post_read_mmio(val, 64, addr, _THIS_IP_, _RET_IP_);
242	return val;	242	return val;
@@ -287,7 +287,7 @@ static inline void writeq(u64 value, volatile void __iomem *addr) · 44 unmodified lines
287	{	287	{
288	log_write_mmio(value, 64, addr, _THIS_IP_, _RET_IP_);	288	log_write_mmio(value, 64, addr, _THIS_IP_, _RET_IP_);
289	__io_bw();	289	__io_bw();
290	__raw_writeq(__cpu_to_le64(value), addr);	290	__raw_writeq((u64 __force)__cpu_to_le64(value), addr);
291	__io_aw();	291	__io_aw();
292	log_post_write_mmio(value, 64, addr, _THIS_IP_, _RET_IP_);	292	log_post_write_mmio(value, 64, addr, _THIS_IP_, _RET_IP_);
293	}	293	}