From: sashiko-bot@kernel.org
To: "Sasha Levin" <sashal@kernel.org>
Cc: linux-pci@vger.kernel.org
Subject: Re: [PATCH AUTOSEL 6.18-5.10] PCI: Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems
Date: Mon, 31 Aug 2026 14:50:08 +0000 [thread overview]
Message-ID: <20260831145009.0DD2E1F000E9@smtp.kernel.org> (raw)
In-Reply-To: <20260831133314.4125787-201-sashal@kernel.org>
> From: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
>
> [ Upstream commit 6a4f64c3a3ada43e71ef1e06da89beb36bdaeefa ]
>
> Some Qualcomm PCIe devices (WCN6855/WCN7850 WiFi cards, SDX62/SDX65 modems)
> do not properly support Secondary Bus Reset (SBR).
>
> Testing confirms this is device-specific, not deployment-specific:
> MediaTek MT7925e successfully uses bus reset through the same passive
> M.2-to-PCIe adapters where Qualcomm devices fail, proving PERST# is
> properly wired through the adapters.
>
> Prevent use of Secondary Bus Reset for these devices.
>
> Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> Link: https://lore.kernel.org/all/20260609163649.319755-4-jtornosm@redhat.com
> Signed-off-by: Sasha Levin <sashal@kernel.org>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260831133314.4125787-201-sashal@kernel.org?part=1
next prev parent reply other threads:[~2026-08-31 14:50 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260831133314.4125787-1-sashal@kernel.org>
2026-08-31 13:20 ` [PATCH AUTOSEL 6.18-6.12] PCI: plda: Protect root bus removal with rescan lock Sasha Levin
2026-08-31 13:43 ` sashiko-bot
2026-08-31 13:20 ` [PATCH AUTOSEL 6.18-6.12] PCI: Avoid FLR for MediaTek MT7925 WiFi Sasha Levin
2026-08-31 13:45 ` sashiko-bot
2026-08-31 13:21 ` [PATCH AUTOSEL 6.18-5.10] PCI: altera: Protect root bus removal with rescan lock Sasha Levin
2026-08-31 14:05 ` sashiko-bot
2026-08-31 13:21 ` [PATCH AUTOSEL 6.18-6.1] PCI: intel-gw: Enable clock before PHY init Sasha Levin
2026-08-31 14:12 ` sashiko-bot
2026-08-31 13:22 ` [PATCH AUTOSEL 6.18-6.1] PCI/proc: Fix race between pci_proc_init() and pci_bus_add_device() Sasha Levin
2026-08-31 14:27 ` sashiko-bot
2026-08-31 13:22 ` [PATCH AUTOSEL 6.18-5.10] PCI: rockchip: Protect root bus removal with rescan lock Sasha Levin
2026-08-31 14:30 ` sashiko-bot
2026-08-31 13:23 ` [PATCH AUTOSEL 6.18-5.10] PCI: Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems Sasha Levin
2026-08-31 14:50 ` sashiko-bot [this message]
2026-08-31 13:24 ` [PATCH AUTOSEL 6.18] misc: pci_endpoint_test: Validate BAR index in doorbell test Sasha Levin
2026-08-31 15:07 ` sashiko-bot
2026-08-31 13:25 ` [PATCH AUTOSEL 6.18-6.1] PCI: Wait for device readiness after D3hot -> D0uninitialized transition Sasha Levin
2026-08-31 15:30 ` sashiko-bot
2026-08-31 13:26 ` [PATCH AUTOSEL 6.18-6.1] PCI: switchtec: Add Gen6 Device IDs Sasha Levin
2026-08-31 15:43 ` sashiko-bot
2026-08-31 13:26 ` [PATCH AUTOSEL 6.18-5.10] PCI: mediatek: Protect root bus removal with rescan lock Sasha Levin
2026-08-31 15:44 ` sashiko-bot
2026-08-31 13:27 ` [PATCH AUTOSEL 6.18] PCI: cadence: " Sasha Levin
2026-08-31 16:15 ` sashiko-bot
2026-08-31 13:28 ` [PATCH AUTOSEL 6.18-5.15] ACPI: PCI: Clear _DEP dependencies after PCI root bridge attach Sasha Levin
2026-08-31 16:33 ` sashiko-bot
2026-08-31 13:28 ` [PATCH AUTOSEL 6.18-6.12] PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store() Sasha Levin
2026-08-31 13:29 ` [PATCH AUTOSEL 6.18-5.10] PCI/sysfs: Use kstrtobool() to parse the ROM attribute input Sasha Levin
2026-08-31 17:00 ` sashiko-bot
2026-08-31 13:29 ` [PATCH AUTOSEL 6.18] PCI: dwc: Protect root bus removal with rescan lock Sasha Levin
2026-08-31 17:09 ` sashiko-bot
2026-08-31 13:31 ` [PATCH AUTOSEL 6.18-5.10] PCI: Stop setting cached power state to 'unknown' on unbind Sasha Levin
2026-08-31 17:28 ` sashiko-bot
2026-08-31 13:31 ` [PATCH AUTOSEL 6.18-5.10] PCI: iproc: Protect root bus removal with rescan lock Sasha Levin
2026-08-31 17:43 ` sashiko-bot
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