On Mon, 2015-06-15 at 16:26 +0530, Sreekanth Reddy wrote: > On Sat, Jun 13, 2015 at 2:33 AM, Joe Lawrence <joe.lawre...@stratus.com> > wrote: > > On 06/12/2015 05:42 AM, Sreekanth Reddy wrote: > > ... > >> +#if defined(alloc_ordered_workqueue) > >> + ioc->firmware_event_thread = alloc_ordered_workqueue( > >> + ioc->firmware_event_name, WQ_MEM_RECLAIM); > >> +#else > >> + ioc->firmware_event_thread = create_singlethread_workqueue( > >> ioc->firmware_event_name); > >> +#endif > > > > Hi Sreekanth, > > > > I think the upstream version of this code can safely assume > > alloc_ordered_workqueue is defined, no? > > yes, upstream version of this code can safely assume that > alloc_ordered_workqueue is defined. > > While working in-house, I observed that some of the older kernels > doesn't defined this macro, so I have added this else section.
The driver has to be defined for the current kernel. If you maintain a backport, that's fine, but not in the upstream driver. The reasons are fairly pragmatic: this code in the #else clause can't be compiled so it's just junk to the upstream driver and the static checkers will find it and you'll attract a flock of patches removing dead code. James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
