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tty: serial: constify dev_pm_ops structures 

Declare dev_pm_ops structures as const as they are only stored in the pm
field of a device_driver structure. This field is of type const, so
dev_pm_ops structures having similar properties can be declared const
too.

Size details after cross compiling the .o file for blackfin architecture.

File size before:
  text	   data	    bss	    dec	    hex	filename
   3572	    320	     16	   3908	    f44 tty/serial/bfin_sport_uart.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   3664	    228	     16	   3908	    f44 tty/serial/bfin_sport_uart.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
zero-colors
Bhumika Goyal 2017-01-15 16:30:30 +05:30 committed by Greg Kroah-Hartman
parent 216e234d66
commit 1ea146a7dc
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/bfin_sport_uart.c
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@ -740,7 +740,7 @@ static int sport_uart_resume(struct device *dev)
return 0;
}
static struct dev_pm_ops bfin_sport_uart_dev_pm_ops = {
static const struct dev_pm_ops bfin_sport_uart_dev_pm_ops = {
.suspend = sport_uart_suspend,
.resume = sport_uart_resume,
};