From ef24ba7091517d2bbf9ba2cb4256c0dccd51d248 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Tue, 6 Sep 2016 21:53:24 +1000 Subject: powerpc: Remove all usages of NO_IRQ NO_IRQ has been == 0 on powerpc for just over ten years (since commit 0ebfff1491ef ("[POWERPC] Add new interrupt mapping core and change platforms to use it")). It's also 0 on most other arches. Although it's fairly harmless, every now and then it causes confusion when a driver is built on powerpc and another arch which doesn't define NO_IRQ. There's at least 6 definitions of NO_IRQ in drivers/, at least some of which are to work around that problem. So we'd like to remove it. This is fairly trivial in the arch code, we just convert: if (irq == NO_IRQ) to if (!irq) if (irq != NO_IRQ) to if (irq) irq = NO_IRQ; to irq = 0; return NO_IRQ; to return 0; And a few other odd cases as well. At least for now we keep the #define NO_IRQ, because there is driver code that uses NO_IRQ and the fixes to remove those will go via other trees. Note we also change some occurrences in PPC sound drivers, drivers/ps3, and drivers/macintosh. Signed-off-by: Michael Ellerman --- sound/aoa/core/gpio-feature.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sound/aoa') diff --git a/sound/aoa/core/gpio-feature.c b/sound/aoa/core/gpio-feature.c index f34153962d07..71960089e207 100644 --- a/sound/aoa/core/gpio-feature.c +++ b/sound/aoa/core/gpio-feature.c @@ -118,7 +118,7 @@ static void get_irq(struct device_node * np, int *irqptr) if (np) *irqptr = irq_of_parse_and_map(np, 0); else - *irqptr = NO_IRQ; + *irqptr = 0; } /* 0x4 is outenable, 0x1 is out, thus 4 or 5 */ @@ -336,7 +336,7 @@ static int ftr_set_notify(struct gpio_runtime *rt, return -EINVAL; } - if (irq == NO_IRQ) + if (!irq) return -ENODEV; mutex_lock(¬if->mutex); -- cgit v1.2.3-58-ga151