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Since commit ee6d3dd4ed ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.
Take advantage of this to constify the structure definition to prevent
modification at runtime.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Justin Ernst <justin.ernst@hpe.com>
Link: https://lore.kernel.org/r/20230207-kobj_type-pdx86-v1-3-8e2c4fb83105@weissschuh.net
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Justin Ernst <justin.ernst@hpe.com>
Link: https://lore.kernel.org/r/202212021705128095546@zte.com.cn
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field. Move the uv sysfs code to use default_groups field which has
been the preferred way since aa30f47cf6 ("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.
Cc: Justin Ernst <justin.ernst@hpe.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211229141332.2552428-1-gregkh@linuxfoundation.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The only use of base_attr_group and hubless_base_attr_group is to pass
their addresses to sysfs_create_group() and sysfs_remove_group(), both
which takes pointers to const attribute_group structs. Make them const
to allow the compiler to put them in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Justin Ernst <justin.ernst@hpe.com>
Link: https://lore.kernel.org/r/20210605203807.60547-5-rikard.falkeborn@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add uv_sysfs leaves to display the info.
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201128034227.120869-3-mike.travis@hpe.com
Fix the following sparse warnings:
drivers/platform/x86/uv_sysfs.c:22:13: warning: symbol \
'uv_pcibus_kset' was not declared. Should it be static?
drivers/platform/x86/uv_sysfs.c:23:13: warning: symbol \
'uv_hubs_kset' was not declared. Should it be static?
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/1606734713-43919-1-git-send-email-zou_wei@huawei.com
Add the uv_sysfs driver to construct a read-only sysfs interface at
/sys/firmware/sgi_uv/ to expose information gathered from UV BIOS. This
information includes:
* UV Hub descriptions, including physical location
* Cabling layout between hubs on the fabric
* PCI topology, including physical location of PCI cards
Together, the information provides a robust physical description of a UV
system, useful for correlating to performance data or performing remote
support.
Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201125175444.279074-4-justin.ernst@hpe.com
