add can driver

hc

2023-12-02 57e32c52610e6a560beda60bf33c48f9f42306d5

 kernel/include/linux/printk.h
..
..
@@ -141,9 +141,11 @@
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 #ifdef CONFIG_EARLY_PRINTK
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 extern asmlinkage __printf(1, 2)
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 void early_printk(const char *fmt, ...);
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+extern void printk_kill(void);
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 #else
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 static inline __printf(1, 2) __cold
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 void early_printk(const char *s, ...) { }
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+static inline void printk_kill(void) { }
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 #endif
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 #ifdef CONFIG_PRINTK_NMI