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From: Priyank Rathod <rathodpriyank@google.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: bhelgaas@google.com, lukas@wunner.de,
	 sathyanarayanan.kuppuswamy@linux.intel.com,
	ilpo.jarvinen@linux.intel.com,  dave.jiang@intel.com,
	prarit@redhat.com, ying.huang@linux.alibaba.com,
	 terry.bowman@amd.com, corbet@lwn.net, jic23@kernel.org,
	 danielmaraboo@gmail.com, linux-doc@vger.kernel.org,
	linux-pci@vger.kernel.org,  linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] PCI/AER: Make aer_mask_override effective for injected errors
Date: Wed, 28 Oct 2026 17:30:38 +0000	[thread overview]
Message-ID: <20261028173038.292999-1-rathodpriyank@google.com> (raw)
In-Reply-To: <20261027230853.GA519764@bhelgaas>

Hi Bjorn,

Thank you for reviewing the patch!

On Tue, Oct 27, 2026 at 06:08:53PM -0500, Bjorn Helgaas wrote:
> Can you start with a one- or two-sentence description of what's going
> on here?  Evidently injecting some errors doesn't work as expected
> today?  As long as the justification is compelling and the code is
> readable, I don't think we need quite as much detail about every
> little implementation detail.

Good point, thank you.  Would a shorter commit log like the following
look better to you?

  aer_mask_override=1 is supposed to allow injecting masked errors, but
  aer_inject() corrupts the hardware Mask registers with "&= !" and
  restores them before irq_inject_interrupt(), so aer_isr() still drops
  the error as masked.  Emulate aer_mask_override in config space reads
  and writes instead of modifying the hardware Mask registers, and
  document the parameter with MODULE_PARM_DESC().

I am happy to send a v2 with this updated commit message, unless you
prefer to adjust it directly when applying.

Thanks,
Priyank

  reply	other threads:[~2026-10-28 17:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-12 20:53 [PATCH 0/2] PCI/AER: Fix and document aer_inject's aer_mask_override Priyank Rathod
2026-10-12 20:53 ` [PATCH 1/2] PCI/AER: Make aer_mask_override effective for injected errors Priyank Rathod
2026-10-27 23:08   ` Bjorn Helgaas
2026-10-28 17:30     ` Priyank Rathod [this message]
2026-10-12 20:53 ` [PATCH 2/2] Documentation: PCI: Document aer_inject's aer_mask_override parameter Priyank Rathod
2026-10-25 14:19   ` Daniel Pereira
2026-10-26 17:57     ` Priyank Rathod
2026-10-27 14:34       ` Daniel Pereira

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