Il giorno gio, 28/12/2006 alle 15.51 -0800, Andrew Morton ha scritto: > Could someone please test this? > diff -puN drivers/pci/search.c~pci-avoid-taking-pci_bus_sem-early-in-boot > drivers/pci/search.c > --- a/drivers/pci/search.c~pci-avoid-taking-pci_bus_sem-early-in-boot > +++ a/drivers/pci/search.c > @@ -259,6 +259,16 @@ pci_get_subsys(unsigned int vendor, unsi > struct pci_dev *dev; > > WARN_ON(in_interrupt()); > + > + /* > + * pci_get_subsys() can be called on the ide_setup() path, super-early > + * in boot. But the down_read() will enable local interrupts, which > + * can cause some machines to crash. So here we detect that situation > + * and bail out early. > + */ > + if (unlikely(list_empty(pci_devices))) > + return NULL; > + > down_read(&pci_bus_sem); > n = from ? from->global_list.next : pci_devices.next; > > _ > Applied to 2.6.19 it returns error while compiling:
CC drivers/pci/search.o drivers/pci/search.c: In function ‘pci_get_subsys’: drivers/pci/search.c:269: error: incompatible type for argument 1 of ‘list_empty’ make[2]: *** [drivers/pci/search.o] Error 1 make[1]: *** [drivers/pci] Error 2 make: *** [drivers] Error 2 drivers/pci/search.c 268 */ 269 if (unlikely(list_empty(pci_devices))) 270 return NULL; -- Stefano Takekawa [EMAIL PROTECTED] Frank: And why do days get longer in the summer? Ernest: Because heat makes things expand! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
