于 2012年11月23日 02:24, Greg KH 写道: > On Thu, Nov 22, 2012 at 12:50:32PM +0800, Chen Gang wrote: >> Hello Arnd Bergmann, Greg Kroah-Hartman >> >> in drivers/char/hpet.c:1009 >> I suggest to add check for hdp->hd_nirqs whether equal or larger than 32 >> (HPET_MAX_TIMERS) >> the type of irqp->interrupt_count is u8 (include/acpi/acrestyp.h:349) >> the type of hdp->hd_irq is "unsigned int hd_irq[HPET_MAX_TIMERS]" >> (include/linux/hpet.h:99) >> #define HPET_MAX_TIMERS (32) (include/linux/hpet.h:38) >> >> additional information: >> acpi_register_gsi() not check the boundaries of how many irqs (at least, >> unlimited for u8). >> maybe (only maybe) the irqp->interrupt_count is always less than 32 by >> hardware limitation. >> I do not know whether it is a bug, so as a suggestion. > > Care to send a patch that implements this? > > thanks, > > greg k-h > >
yes, I will do. please help to check what I shall send (also OK to check by another one, I understand you are busy). please waiting for a while. thanks. -- Chen Gang Asianux Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/