Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
Christoph Hellwig
authored
We should only try to allocate multiple MSI or MSI-X vectors if the device actually has multiple ports. Otherwise pci_alloc_irq_vectors will return a single vector due to n_ports = 1, in which case we shouldn't set the AHCI_HFLAG_MULTI_MSI flag. Signed-off-by:Christoph Hellwig <hch@lst.de> Fixes: 0b9e2988 ("ahci: use pci_alloc_irq_vectors") Reported-by:
Emmanuel Benisty <benisty.e@gmail.com> Tested-by:
Emmanuel Benisty <benisty.e@gmail.com> Signed-off-by:
Tejun Heo <tj@kernel.org>
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