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 --- drivers/ps3/ps3-vuart.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/ps3') diff --git a/drivers/ps3/ps3-vuart.c b/drivers/ps3/ps3-vuart.c index 632701a1d993..b7f300b79ffd 100644 --- a/drivers/ps3/ps3-vuart.c +++ b/drivers/ps3/ps3-vuart.c @@ -958,7 +958,7 @@ static int ps3_vuart_bus_interrupt_get(void) fail_request_irq: ps3_vuart_irq_destroy(vuart_bus_priv.virq); - vuart_bus_priv.virq = NO_IRQ; + vuart_bus_priv.virq = 0; fail_alloc_irq: kfree(vuart_bus_priv.bmp); vuart_bus_priv.bmp = NULL; @@ -982,7 +982,7 @@ static int ps3_vuart_bus_interrupt_put(void) free_irq(vuart_bus_priv.virq, &vuart_bus_priv); ps3_vuart_irq_destroy(vuart_bus_priv.virq); - vuart_bus_priv.virq = NO_IRQ; + vuart_bus_priv.virq = 0; kfree(vuart_bus_priv.bmp); vuart_bus_priv.bmp = NULL; -- cgit v1.2.3