Linux PCI subsystem development
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From: Johannes Berg <johannes@sipsolutions.net>
To: Bjorn Helgaas <helgaas@kernel.org>,
	Navon John Lukose <navonjohnlukose@gmail.com>
Cc: Miri Korenblit <miriam.rachel.korenblit@intel.com>,
	 linux-wireless@vger.kernel.org,
	Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
	 Nika Krasnova <nika@nikableh.moe>,
	Mark Pearson <mpearson-lenovo@squebb.ca>,
	Mark Pearson	 <markpearson@lenovo.com>,
	linux-pci@vger.kernel.org,  linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH wireless v2 1/3] wifi: iwlwifi: pcie: don't infer CSME presence from a failed read
Date: Tue, 01 Sep 2026 19:02:25 +0200	[thread overview]
Message-ID: <1a2c11d47b27dfd8a246300ac158d25cef5abf35.camel@sipsolutions.net> (raw)
In-Reply-To: <20260901161736.GA1883420@bhelgaas>

On Tue, 2026-09-01 at 11:17 -0500, Bjorn Helgaas wrote:
> 
> iwlwifi has a mix of checking for 0xffffffff and ~0.  I don't know if
> it can use non-PCI transports, but some of those places look like they
> could use PCI_POSSIBLE_ERROR().

I believe the hardware itself never generates ~0, so yes, it probably
should use that.

johannes

  reply	other threads:[~2026-09-01 17:02 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-31 13:03 [PATCH wireless v2 0/3] wifi: iwlwifi: recover a device that lost power in D3cold Navon John Lukose
2026-08-31 13:03 ` [PATCH wireless v2 1/3] wifi: iwlwifi: pcie: don't infer CSME presence from a failed read Navon John Lukose
2026-08-31 13:15   ` sashiko-bot
2026-09-01 15:48   ` Bjorn Helgaas
2026-09-01 16:17     ` Bjorn Helgaas
2026-09-01 17:02       ` Johannes Berg [this message]
2026-08-31 13:03 ` [PATCH wireless v2 2/3] wifi: iwlwifi: pcie: deselect the product reset mode at probe Navon John Lukose
2026-08-31 13:13   ` sashiko-bot
2026-08-31 13:03 ` [PATCH wireless v2 3/3] wifi: iwlwifi: pcie: recover a device that lost power in D3cold Navon John Lukose
2026-08-31 13:20   ` sashiko-bot
2026-08-31 17:08   ` Ilpo Järvinen

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