On Tue, 2017-11-21 at 18:09 +0100, Greg Kroah-Hartman wrote: > On Tue, Nov 21, 2017 at 04:46:18PM +0000, Ben Hutchings wrote: > > On Tue, 2017-11-21 at 17:35 +0100, Greg Kroah-Hartman wrote: > > > On Tue, Nov 21, 2017 at 03:26:10PM +0000, Ben Hutchings wrote: > > > > [...] > > > > Not all 32-bit configurations can provide cmpxchg64(). i40e's use of > > > > cmpxchg64() appears to be fixed by: > > > > > > > > b74f571f59a8 i40e/i40evf: organize and re-number feature flags > > > > b48be9978e4b i40e: fix flags declaration > > > > > > So without those patches, are any specific arches/configs broken for > > > 4.14? > > > > 32-bit parisc is. > > Ok, but that's a horrid hack on the i40e driver, it just happens to move > the bitfield to a 32bit variable. Can't we just provide a "real" > cmpxchg64() for 32-bit parisc? No. There is a generic implementation of cmpxchg64() but it is only suitable for non-SMP configurations. > Or mark this driver as not buildable on that platform? I suggested adding a 'depends 64BIT' but got no response. Ben. > I doubt anyone is doing 40gb networking on parisc :) > > thanks, > > greg k-h > -- Ben Hutchings Software Developer, Codethink Ltd.