On Thu, Nov 23, 2017 at 08:50:03AM +0000, Marc Zyngier wrote: >On 22/11/17 22:25, alexander.levin@xxxxxxxxxxx wrote: >> From: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> >> >> [ Upstream commit 9d111d49106b61f5a652d5418e85d8741b1a0427 ] >> >> As it turns out, the IIDR is not sufficient to distinguish between GICv3 >> implementations when it comes to enabling quirks. So update the prototype >> of the init() hook to return a bool, and interpret a 'false' return value >> as no match, in which case the 'enabling workaround' log message should >> not be printed. >> >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> >> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> >> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> > >What is the point of backporting this patch? It's only use is to enable >a workaround that is not a pre-4.15 candidate. > >Same for its equivalent in the 4.9 tree. I missed that this is to support new hardware and that no such hardware exists before 4.15. I'll drop it, thanks! -- Thanks, Sasha