export RK_PA3

hc

2024-02-19 151fecfb72a0d602dfe79790602ef64b4e241574

 kernel/include/uapi/linux/rseq.h
..
..
@@ -105,23 +105,11 @@
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 	 * Read and set by the kernel. Set by user-space with single-copy
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 	 * atomicity semantics. This field should only be updated by the
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 	 * thread which registered this data structure. Aligned on 64-bit.
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+	 *
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+	 * 32-bit architectures should update the low order bits of the
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+	 * rseq_cs field, leaving the high order bits initialized to 0.
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 	 */
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-	union {
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-		__u64 ptr64;
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-#ifdef __LP64__
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-		__u64 ptr;
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-#else
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-		struct {
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-#if (defined(__BYTE_ORDER) && (__BYTE_ORDER == __BIG_ENDIAN)) || defined(__BIG_ENDIAN)
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-			__u32 padding;		/* Initialized to zero. */
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-			__u32 ptr32;
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-#else /* LITTLE */
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-			__u32 ptr32;
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-			__u32 padding;		/* Initialized to zero. */
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-#endif /* ENDIAN */
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-		} ptr;
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-#endif
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-	} rseq_cs;
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+	__u64 rseq_cs;
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 	/*
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 	 * Restartable sequences flags field.