modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/arch/ia64/include/asm/spinlock.h
..
..
@@ -73,6 +73,8 @@
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 {
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 	unsigned short	*p = (unsigned short *)&lock->lock + 1, tmp;
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+	/* This could be optimised with ARCH_HAS_MMIOWB */
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+	mmiowb();
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 	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
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 	WRITE_ONCE(*p, (tmp + 2) & ~1);
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 }