On Wed, May 20, 2020 at 06:52:54AM +0530, Anshuman Khandual wrote: > There is no way to proceed when requested register could not be searched in > arm64_ftr_reg[]. Requesting for a non present register would be an error as > well. Hence lets just BUG_ON() when the search fails in get_arm64_ftr_reg() > rather than checking for return value and doing the same in some individual > callers. > > But there are some callers that dont BUG_ON() upon search failure. It adds > an argument 'failsafe' that provides required switch between callers based > on whether they could proceed or not. > > Cc: Catalin Marinas <catalin.mari...@arm.com> > Cc: Will Deacon <w...@kernel.org> > Cc: Suzuki K Poulose <suzuki.poul...@arm.com> > Cc: Mark Brown <broo...@kernel.org> > Cc: linux-arm-ker...@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > > Signed-off-by: Anshuman Khandual <anshuman.khand...@arm.com>
BTW, there should be no empty line between the Cc block and the SoB. The patch looks fine. Just a note that the patch transforms a current WARN_ON in a BUG_ON but that's fine by me. Reviewed-by: Catalin Marinas <catalin.mari...@arm.com>
