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02b5822d2f
Commit 22089c218037 ("scsi: ufs: core: Optimize the hot path")
accidentally broke support for the legacy single doorbell mode. The
tag_set.shared_tags pointer is only != NULL if shared tag support is
enabled. The UFS driver only enables shared tag support in MCQ mode.
Fix this by handling legacy and MCQ modes differently in
ufshcd_tag_to_cmd().
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Closes: https://lore.kernel.org/linux-scsi/c988a6dd-588d-4dbc-ab83-bbee17f2a686@samsung.com/
Reported-by: André Draszik <andre.draszik@linaro.org>
Closes: https://lore.kernel.org/linux-scsi/83ffbceb9e66b2a3b6096231551d969034ed8a74.camel@linaro.org/
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: 22089c218037 ("scsi: ufs: core: Optimize the hot path")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251114193406.3097237-1-bvanassche@acm.org
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 reStructuredText 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.