From: Markus Elfring <Markus.Elfring@web.de>
To: "Jacky Chou" <jacky_chou@aspeedtech.com>,
linux-aspeed@lists.ozlabs.org, linux-pci@vger.kernel.org,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
"Andrew Jeffery" <andrew@codeconstruct.com.au>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Conor Dooley" <conor+dt@kernel.org>,
"Joel Stanley" <joel@jms.id.au>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Rob Herring" <robh@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
openbmc@lists.ozlabs.org, BMC-SW@aspeedtech.com
Subject: Re: [PATCH v2 09/10] PCI: aspeed: Add ASPEED PCIe RC driver
Date: Tue, 15 Jul 2025 19:00:27 +0200 [thread overview]
Message-ID: <8fe0f561-ef44-4ec2-9b93-f73105bd67ed@web.de> (raw)
In-Reply-To: <20250715034320.2553837-10-jacky_chou@aspeedtech.com>
…
> +++ b/drivers/pci/controller/pcie-aspeed.c
> @@ -0,0 +1,1137 @@
…
> +static int aspeed_irq_msi_domain_alloc(struct irq_domain *domain,
> + unsigned int virq, unsigned int nr_irqs,
> + void *args)
> +{
…
> + mutex_lock(&pcie->lock);
> +
> + bit = bitmap_find_free_region(pcie->msi_irq_in_use, MAX_MSI_HOST_IRQS,
> + get_count_order(nr_irqs));
> +
> + mutex_unlock(&pcie->lock);
…
Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&pcie->lock);”?
https://elixir.bootlin.com/linux/v6.16-rc6/source/include/linux/mutex.h#L225
Regards,
Markus
next prev parent reply other threads:[~2025-07-15 17:01 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-15 3:43 [PATCH v2 00/10] Add ASPEED PCIe Root Complex support Jacky Chou
2025-07-15 3:43 ` [PATCH v2 01/10] dt-bindings: soc: aspeed: Add ASPEED PCIe Config support Jacky Chou
2025-07-16 8:24 ` Krzysztof Kozlowski
2025-07-21 3:47 ` 回覆: " Jacky Chou
2025-07-15 3:43 ` [PATCH v2 02/10] dt-bindings: soc: aspeed: Add ASPEED PCIe PHY support Jacky Chou
2025-07-16 8:23 ` Krzysztof Kozlowski
2025-07-15 3:43 ` [PATCH v2 03/10] dt-bindings: PCI: Add ASPEED PCIe RC support Jacky Chou
2025-07-16 8:27 ` Krzysztof Kozlowski
2025-07-21 3:44 ` 回覆: " Jacky Chou
2025-07-21 7:00 ` Krzysztof Kozlowski
2025-07-22 5:29 ` Jacky Chou
2025-07-15 3:43 ` [PATCH v2 04/10] dt-bindings: pinctrl: aspeed,ast2600-pinctrl: Add PCIe RC PERST# group Jacky Chou
2025-07-16 8:27 ` Krzysztof Kozlowski
2025-07-21 3:32 ` 回覆: " Jacky Chou
2025-07-15 3:43 ` [PATCH v2 05/10] ARM: dts: aspeed-g6: Add AST2600 PCIe RC PERST# Jacky Chou
2025-07-15 3:43 ` [PATCH v2 06/10] ARM: dts: aspeed-g6: Add PCIe RC node Jacky Chou
2025-07-15 15:25 ` Rob Herring
2025-07-16 3:51 ` Jacky Chou
2025-07-20 22:22 ` Rob Herring
2025-07-21 3:21 ` 回覆: " Jacky Chou
2025-07-15 3:43 ` [PATCH v2 07/10] pinctrl: aspeed-g6: Add PCIe RC PERST pin group Jacky Chou
2025-07-23 11:23 ` Linus Walleij
2025-08-27 3:08 ` Jacky Chou
2025-08-28 20:46 ` Linus Walleij
2025-08-29 5:44 ` Jacky Chou
2025-07-15 3:43 ` [PATCH v2 08/10] PCI: Add FMT and TYPE definition for TLP header Jacky Chou
2025-07-15 15:41 ` Bjorn Helgaas
2025-08-27 1:22 ` Jacky Chou
2025-07-15 20:13 ` kernel test robot
2025-07-15 3:43 ` [PATCH v2 09/10] PCI: aspeed: Add ASPEED PCIe RC driver Jacky Chou
2025-07-15 13:51 ` Philipp Zabel
2025-08-21 7:22 ` Jacky Chou
2025-07-15 16:22 ` Bjorn Helgaas
2025-08-22 7:00 ` 回覆: " Jacky Chou
2025-08-22 15:36 ` Bjorn Helgaas
2025-08-27 3:35 ` Jacky Chou
2025-07-15 17:00 ` Markus Elfring [this message]
2025-08-27 3:45 ` Jacky Chou
2025-07-15 22:28 ` kernel test robot
2025-07-15 3:43 ` [PATCH v2 10/10] MAINTAINERS: " Jacky Chou
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