Re: [PATCH v7 1/4] PCI: Introduce pcim_alloc_irq_vectors()
From: Bjorn Helgaas <helgaas@kernel.org>
Date: 2021-06-07 17:14:57
Also in:
linux-i2c, linux-pci, lkml
From: Bjorn Helgaas <helgaas@kernel.org>
Date: 2021-06-07 17:14:57
Also in:
linux-i2c, linux-pci, lkml
On Mon, Jun 07, 2021 at 07:12:34PM +0300, Andy Shevchenko wrote:
On Mon, Jun 07, 2021 at 11:39:13PM +0800, Dejin Zheng wrote:quoted
Introduce pcim_alloc_irq_vectors(), a device-managed version of pci_alloc_irq_vectors(). Introducing this function can simplify the error handling path in many drivers. And use pci_free_irq_vectors() to replace some code in pcim_release(), they are equivalent, and no functional change. It is more explicit that pcim_alloc_irq_vectors() is a device-managed function....quoted
When CONFIG_PCI=n, there is no stub for pci_is_managed(), but pcim_alloc_irq_vectors() will use it, so add one like other similar stubs. Otherwise there can be build errors, as here by kernel test robot reported: include/linux/pci.h: In function 'pcim_alloc_irq_vectors':quoted
quoted
include/linux/pci.h:1847:7: error: implicit declaration of function 'pci_is_managed' [-Werror=implicit-function-declaration]1847 | if (!pci_is_managed(dev)) | ^~~~~~~~~~~~~~This is rather changelog related material. No need to pollute commit message with this. ...quoted
Reported-by: kernel test robot <redacted>It's new functionality. Why this tag is here? Use comments (similar location than changelog) to give a credit if you wish.
Agreed, I'll tidy that up, so no need to repost for this.