0298d54352
Only request an IRQ mapping for read queues if at least one read queue is being allocted, as nvme_pci_map_queues() will later on ignore the unnecessary mapping request should nvme_dev_add() request such an IRQ mapping even though no read queues are being allocated. However, nvme_dev_add() can avoid making the request by checking the number of read queues without assuming. This would bring it more in line with nvme_setup_irqs() and nvme_calc_irq_sets(). Signed-off-by: Alan Mikhak <alan.mikhak@sifive.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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.