Messages in this thread | | | From | "Justin He (Arm Technology China)" <> | Subject | RE: [PATCH v9 1/3] arm64: cpufeature: introduce helper cpu_has_hw_af() | Date | Thu, 26 Sep 2019 09:23:18 +0000 |
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Hi Catalin
> -----Original Message----- > From: Catalin Marinas <catalin.marinas@arm.com> > Sent: 2019年9月25日 22:38 > To: Justin He (Arm Technology China) <Justin.He@arm.com> > Cc: Will Deacon <will@kernel.org>; Mark Rutland > <Mark.Rutland@arm.com>; James Morse <James.Morse@arm.com>; Marc > Zyngier <maz@kernel.org>; Matthew Wilcox <willy@infradead.org>; Kirill A. > Shutemov <kirill.shutemov@linux.intel.com>; linux-arm- > kernel@lists.infradead.org; linux-kernel@vger.kernel.org; linux- > mm@kvack.org; Suzuki Poulose <Suzuki.Poulose@arm.com>; Punit > Agrawal <punitagrawal@gmail.com>; Anshuman Khandual > <Anshuman.Khandual@arm.com>; Alex Van Brunt > <avanbrunt@nvidia.com>; Robin Murphy <Robin.Murphy@arm.com>; > Thomas Gleixner <tglx@linutronix.de>; Andrew Morton <akpm@linux- > foundation.org>; Jérôme Glisse <jglisse@redhat.com>; Ralph Campbell > <rcampbell@nvidia.com>; hejianet@gmail.com; Kaly Xin (Arm Technology > China) <Kaly.Xin@arm.com>; nd <nd@arm.com> > Subject: Re: [PATCH v9 1/3] arm64: cpufeature: introduce helper > cpu_has_hw_af() > > On Wed, Sep 25, 2019 at 10:59:20AM +0800, Jia He wrote: > > We unconditionally set the HW_AFDBM capability and only enable it on > > CPUs which really have the feature. But sometimes we need to know > > whether this cpu has the capability of HW AF. So decouple AF from > > DBM by new helper cpu_has_hw_af(). > > > > Signed-off-by: Jia He <justin.he@arm.com> > > Suggested-by: Suzuki Poulose <Suzuki.Poulose@arm.com> > > Reported-by: kbuild test robot <lkp@intel.com> > > Which bug did the kbuild robot actually report? I'd drop this line. > This line is added due to [1]: "If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@intel.com>"
Yes, I know your concern, it is a little bit confusing. But I don't know how to distinguish the case btw a) original bug report b) bug report of my patch implementation? Thanks for any suggestion.
[1] https://www.lkml.org/lkml/2019/9/18/940
-- Cheers, Justin (Jia He)
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