From: Randy Dunlap Not critical. WARNING: drivers/char/esp.o(.text+0x278): Section mismatch in reference from the function show_serial_version() to the variable .init.data:serial_version The function show_serial_version() references the variable __initdata serial_version. This is often because show_serial_version lacks a __initdata annotation or the annotation of serial_version is wrong. WARNING: drivers/char/esp.o(.text+0x27d): Section mismatch in reference from the function show_serial_version() to the variable .init.data:serial_name The function show_serial_version() references the variable __initdata serial_name. This is often because show_serial_version lacks a __initdata annotation or the annotation of serial_name is wrong. Signed-off-by: Randy Dunlap Cc: Andrew J. Robinson Signed-off-by: Andrew Morton --- drivers/char/esp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN drivers/char/esp.c~esp-fix-section-mismatch-warning drivers/char/esp.c --- a/drivers/char/esp.c~esp-fix-section-mismatch-warning +++ a/drivers/char/esp.c @@ -2249,7 +2249,7 @@ static int esp_open(struct tty_struct *t * driver. */ -static void show_serial_version(void) +static void __init show_serial_version(void) { printk(KERN_INFO "%s version %s (DMA %u)\n", serial_name, serial_version, dma); _