Re: [PATCH v2 09/10] PCI: aspeed: Add ASPEED PCIe RC driver
From: Markus Elfring <hidden>
Date: 2025-07-15 17:01:22
Also in:
linux-aspeed, linux-devicetree, linux-gpio, linux-pci, lkml, openbmc
…
quoted hunk ↗ jump to hunk
+++ 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