add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/kernel/printk/braille.c
..
..
@@ -11,11 +11,18 @@
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 int _braille_console_setup(char **str, char **brl_options)
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 {
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-	if (!strncmp(*str, "brl,", 4)) {
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+	size_t len;
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+
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+	len = str_has_prefix(*str, "brl,");
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+	if (len) {
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 		*brl_options = "";
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-		*str += 4;
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-	} else if (!strncmp(*str, "brl=", 4)) {
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-		*brl_options = *str + 4;
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+		*str += len;
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+		return 0;
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+	}
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+
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+	len = str_has_prefix(*str, "brl=");
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+	if (len) {
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+		*brl_options = *str + len;
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 		*str = strchr(*brl_options, ',');
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 		if (!*str) {
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 			pr_err("need port name after brl=\n");