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785d6b7cf3
This driver stores just a pointer to the driver host structure in host->hostdata[]. Most other drivers actually have the driver host structure allocated in host->hostdata[], but this driver is different as we allocate that memory separately before allocating the shost memory. However there is no need to allocate this memory only in host->hostdata[] when we can already look up the driver host structure from shost->dma_dev, so add a macro for this - shost_to_sdebug_host(). Rename to_sdebug_host() -> dev_to_sdebug_host() to avoid ambiguity. Also remove a check for !sdbg_host in find_build_dev_info(), as this cannot be true. Other similar checks will be later removed. Signed-off-by: John Garry <john.g.garry@oracle.com> Link: https://lore.kernel.org/r/20230313093114.1498305-2-john.g.garry@oracle.com Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.