Re: [PATCH v2 2/3] staging: fbtft: Replace magic number with constant

From: Joe Perches
Date: Tue Feb 14 2017 - 22:36:47 EST


On Wed, 2017-02-15 at 14:27 +1100, Tobin C. Harding wrote:
> Current call to strncmp() uses a magic number. There is a compile
> time constant defined for this buffer, included and used already at
> other sites in the file.
>
> Remove magic number. Replace with pre-existing compile time constant.

OK thanks, as well:

> diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c
[]
> @@ -1489,7 +1489,7 @@ static int __init fbtft_device_init(void)
> }
>
> for (i = 0; i < ARRAY_SIZE(displays); i++) {
> - if (strncmp(name, displays[i].name, 32) == 0) {
> + if (strncmp(name, displays[i].name, SPI_NAME_SIZE) == 0) {

Maybe change this to:

if (strncmp(name, displays[i].name, SPI_NAME_SIZE) != 0)
continue;

and reduce the indentation of the rest of the block.