user/sven/linux.git/include/linux/sysfs.h, branch v5.4.143

sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output

2021-03-07T11:20:48Z

commit 2efc459d06f1630001e3984854848a5647086232 upstream. Output defects can exist in sysfs content using sprintf and snprintf. sprintf does not know the PAGE_SIZE maximum of the temporary buffer used for outputting sysfs content and it's possible to overrun the PAGE_SIZE buffer length. Add a generic sysfs_emit function that knows that the size of the temporary buffer and ensures that no overrun is done. Add a generic sysfs_emit_at function that can be used in multiple call situations that also ensures that no overrun is done. Validate the output buffer argument to be page aligned. Validate the offset len argument to be within the PAGE_SIZE buf. Signed-off-by: Joe Perches Link: https://lore.kernel.org/r/884235202216d464d61ee975f7465332c86f76b2.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman

sysfs: Fixes __BIN_ATTR_WO() macro

2019-10-02T08:06:45Z

This patch fixes the size and write parameter for the macro __BIN_ATTR_WO(). Fixes: 7f905761e15a8 ("sysfs: add BIN_ATTR_WO() macro") Signed-off-by: Nayna Jain Link: https://lore.kernel.org/r/1569973038-2710-1-git-send-email-nayna@linux.ibm.com Signed-off-by: Greg Kroah-Hartman

sysfs: add BIN_ATTR_WO() macro

2019-09-04T11:37:17Z

This variant was missing from sysfs.h, I guess no one noticed it before. Turns out the powerpc secure variable code can use it, so add it to the tree for it, and potentially others to take advantage of, instead of open-coding it. Reported-by: Nayna Jain Signed-off-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20190826150153.GD18418@kroah.com Signed-off-by: Greg Kroah-Hartman

sysfs: Add sysfs_update_groups function

2019-06-03T09:58:20Z

Adding sysfs_update_groups function to update multiple groups. sysfs_update_groups - given a directory kobject, create a bunch of attribute groups @kobj: The kobject to update the group on @groups: The attribute groups to update, NULL terminated This function update a bunch of attribute groups. If an error occurs when updating a group, all previously updated groups will be removed together with already existing (not updated) attributes. Signed-off-by: Jiri Olsa Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Greg Kroah-Hartman Cc: Alexander Shishkin Cc: Arnaldo Carvalho de Melo Cc: Linus Torvalds Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190512155518.21468-2-jolsa@kernel.org Signed-off-by: Ingo Molnar

sysfs: constify sysfs create/remove files harder

2018-12-03T16:18:19Z

Let the passed in array be const (and thus placed in rodata) instead of a mutable array of const pointers. Cc: Greg Kroah-Hartman Cc: "Rafael J. Wysocki" Reviewed-by: Rafael J. Wysocki Reviewed-by: Greg Kroah-Hartman Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20181004143750.30880-1-jani.nikula@intel.com

Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2018-08-18T18:44:53Z

Pull driver core updates from Greg KH: "Here are all of the driver core and related patches for 4.19-rc1. Nothing huge here, just a number of small cleanups and the ability to now stop the deferred probing after init happens. All of these have been in linux-next for a while with only a merge issue reported" * tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (21 commits) base: core: Remove WARN_ON from link dependencies check drivers/base: stop new probing during shutdown drivers: core: Remove glue dirs from sysfs earlier driver core: remove unnecessary function extern declare sysfs.h: fix non-kernel-doc comment PM / Domains: Stop deferring probe at the end of initcall iommu: Remove IOMMU_OF_DECLARE iommu: Stop deferring probe at end of initcalls pinctrl: Support stopping deferred probe after initcalls dt-bindings: pinctrl: add a 'pinctrl-use-default' property driver core: allow stopping deferred probe after init driver core: add a debugfs entry to show deferred devices sysfs: Fix internal_create_group() for named group updates base: fix order of OF initialization linux/device.h: fix kernel-doc notation warning Documentation: update firmware loader fallback reference kobject: Replace strncpy with memcpy drivers: base: cacheinfo: use OF property_read_u32 instead of get_property,read_number kernfs: Replace strncpy with memcpy device: Add #define dev_fmt similar to #define pr_fmt ...

scsi: sysfs: Introduce sysfs_{un,}break_active_protection()

2018-08-02T19:53:15Z

Introduce these two functions and export them such that the next patch can add calls to these functions from the SCSI core. Signed-off-by: Bart Van Assche Acked-by: Tejun Heo Acked-by: Greg Kroah-Hartman Cc: Signed-off-by: Martin K. Petersen

sysfs.h: fix non-kernel-doc comment

2018-07-16T11:32:20Z

Don't use "/**" to begin this comment block since it is not a kernel-doc comment block. Also adjust comment line to fit in 80 characters. Signed-off-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman

sysfs.h: Use octal permissions

2018-01-09T15:27:43Z

Use the more common and preferred octal directly. Signed-off-by: Joe Perches Signed-off-by: Greg Kroah-Hartman

efi: Move some sysfs files to be read-only by root

2017-12-06T18:31:39Z

Thanks to the scripts/leaking_addresses.pl script, it was found that some EFI values should not be readable by non-root users. So make them root-only, and to do that, add a __ATTR_RO_MODE() macro to make this easier, and use it in other places at the same time. Reported-by: Linus Torvalds Tested-by: Dave Young Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ard Biesheuvel Cc: H. Peter Anvin Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Cc: stable Link: http://lkml.kernel.org/r/20171206095010.24170-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar