Commit 65493e3a authored by Alexandre Courbot's avatar Alexandre Courbot Committed by Grant Likely

gpiolib: use gpio_chips list in gpiolib_sysfs_init

Use the small list of GPIO chips instead of parsing the whole GPIO
number space.
Signed-off-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij's avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 1a989d0f
......@@ -974,7 +974,7 @@ static int __init gpiolib_sysfs_init(void)
{
int status;
unsigned long flags;
unsigned gpio;
struct gpio_chip *chip;
status = class_register(&gpio_class);
if (status < 0)
......@@ -987,10 +987,7 @@ static int __init gpiolib_sysfs_init(void)
* registered, and so arch_initcall() can always gpio_export().
*/
spin_lock_irqsave(&gpio_lock, flags);
for (gpio = 0; gpio < ARCH_NR_GPIOS; gpio++) {
struct gpio_chip *chip;
chip = gpio_desc[gpio].chip;
list_for_each_entry(chip, &gpio_chips, list) {
if (!chip || chip->exported)
continue;
......
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