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d8649fc1c5
When we discover the PHY is empty in sas_rediscover_dev(), the PHY information (like negotiated linkrate) is not updated. As such, for a user examining sysfs for that PHY, they would see incorrect values: root@(none)$ cd /sys/class/sas_phy/phy-0:0:20 root@(none)$ more negotiated_linkrate 3.0 Gbit root@(none)$ echo 0 > enable root@(none)$ more negotiated_linkrate 3.0 Gbit So fix this, simply discover the PHY again, even though we know it's empty; in the above example, this gives us: root@(none)$ more negotiated_linkrate Phy disabled We must do this after unregistering the device associated with the PHY (in sas_unregister_devs_sas_addr()). Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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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.