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 --- arch/powerpc/sysdev/xics/icp-native.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/sysdev/xics/icp-native.c') diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index afdf62f2a695..8a6a043e239b 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -124,10 +124,10 @@ static unsigned int icp_native_get_irq(void) unsigned int irq; if (vec == XICS_IRQ_SPURIOUS) - return NO_IRQ; + return 0; irq = irq_find_mapping(xics_host, vec); - if (likely(irq != NO_IRQ)) { + if (likely(irq)) { xics_push_cppr(vec); return irq; } @@ -138,7 +138,7 @@ static unsigned int icp_native_get_irq(void) /* We might learn about it later, so EOI it */ icp_native_set_xirr(xirr); - return NO_IRQ; + return 0; } #ifdef CONFIG_SMP -- cgit v1.2.3