This patch makes a band-aid fix the following build failure: CC drivers/ata/pata_of_platform.o drivers/ata/pata_of_platform.c: In function 'pata_of_platform_probe': drivers/ata/pata_of_platform.c:55:13: error: 'NO_IRQ' undeclared (first use in this function) drivers/ata/pata_of_platform.c:55:13: note: each undeclared identifier is reported only once for each function it appears in The proper fix (stop OF code from returning NO_IRQ values) is pending. Signed-off-by: Anton Vorontsov <cbouatmailru@xxxxxxxxx> --- On Thu, Nov 10, 2011 at 02:57:03PM +0100, Ingo Molnar wrote: [...] > > > drivers/ata/pata_of_platform.c:55:13: error: 'NO_IRQ' undeclared (first use in this function) > > > > [adding Author: Anton] > > > > Build error still present in linux-next of 20111014. > > This build failure regression report was ignored twice and then > pushed upstream and is still unfixed a month after the initial > report. Upstream now fails to build on like 25% of x86 configs. > > What's going on with this bug guys? Here is the story: - NO_IRQ is evil[1], AFAIR the trend is to remove its usage completely; - Sane arches (x86) don't use it at all, or have it defined to 0 (PPC32/64). - On another arches it is either -1 or whatever random value; - The NO_IRQ disease spreads despite our willingness, even within the new OF code. The new irq domain stuff (that is used on ARM) always returns 0 in 'no irq' case, so we may easily remove it. So the proper fix would be two-fold: for OF and for that driver. But this is for 3.3 kernels. I'll send the two patches as follow-ups. In the meantime, the band-aid (for 3.2) is down below. [1] http://lkml.org/lkml/2005/11/22/159 http://lkml.org/lkml/2005/11/22/227 drivers/ata/pata_of_platform.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/ata/pata_of_platform.c b/drivers/ata/pata_of_platform.c index a72ab0d..f99e17b 100644 --- a/drivers/ata/pata_of_platform.c +++ b/drivers/ata/pata_of_platform.c @@ -16,6 +16,11 @@ #include <linux/of_platform.h> #include <linux/ata_platform.h> +/* For archs that don't support NO_IRQ (such as x86), provide a dummy value */ +#ifndef NO_IRQ +#define NO_IRQ 0 +#endif + static int __devinit pata_of_platform_probe(struct platform_device *ofdev) { int ret; -- 1.7.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
