modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/arch/x86/kernel/tls.c
..
..
@@ -256,36 +256,16 @@
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 }
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 int regset_tls_get(struct task_struct *target, const struct user_regset *regset,
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-		   unsigned int pos, unsigned int count,
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-		   void *kbuf, void __user *ubuf)
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+		   struct membuf to)
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 {
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 	const struct desc_struct *tls;
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+	struct user_desc v;
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+	int pos;
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-	if (pos >= GDT_ENTRY_TLS_ENTRIES * sizeof(struct user_desc) ||
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-	    (pos % sizeof(struct user_desc)) != 0 ||
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-	    (count % sizeof(struct user_desc)) != 0)
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-		return -EINVAL;
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-
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-	pos /= sizeof(struct user_desc);
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-	count /= sizeof(struct user_desc);
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-
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-	tls = &target->thread.tls_array[pos];
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-
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-	if (kbuf) {
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-		struct user_desc *info = kbuf;
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-		while (count-- > 0)
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-			fill_user_desc(info++, GDT_ENTRY_TLS_MIN + pos++,
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-				       tls++);
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-	} else {
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-		struct user_desc __user *u_info = ubuf;
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-		while (count-- > 0) {
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-			struct user_desc info;
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-			fill_user_desc(&info, GDT_ENTRY_TLS_MIN + pos++, tls++);
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-			if (__copy_to_user(u_info++, &info, sizeof(info)))
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-				return -EFAULT;
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-		}
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+	for (pos = 0, tls = target->thread.tls_array; to.left; pos++, tls++) {
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+		fill_user_desc(&v, GDT_ENTRY_TLS_MIN + pos, tls);
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+		membuf_write(&to, &v, sizeof(v));
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 	}
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-
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 	return 0;
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 }
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