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2019-07-066lowpan: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-71/+26
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Because we don't care if debugfs works or not, this trickles back a bit so we can clean things up by making some functions return void instead of an error value that is never going to fail. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner1-8/+2
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-226lowpan: fix debugfs_simple_attr.cocci warningsYueHaibing1-21/+21
Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE for debugfs files. Semantic patch information: Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file() imposes some significant overhead as compared to DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe(). Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2018-12-196lowpan: convert to DEFINE_SHOW_ATTRIBUTEYangtao Li1-12/+1
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-06-156lowpan: add support for getting short addressAlexander Aring1-0/+39
In case of sending RA messages we need some way to get the short address from an 802.15.4 6LoWPAN interface. This patch will add a temporary debugfs entry for experimental userspace api. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-136lowpan: change naming for lowpan private dataAlexander Aring1-11/+11
This patch changes the naming for interface private data for lowpan intefaces. The current private data scheme is: ------------------------------------------------- | 6LoWPAN Generic | LinkLayer 6LoWPAN | ------------------------------------------------- the current naming schemes are: - 6LoWPAN Generic: - lowpan_priv - LinkLayer 6LoWPAN: - BTLE - lowpan_dev - 802.15.4: - lowpan_dev_info the new naming scheme with this patch will be: - 6LoWPAN Generic: - lowpan_dev - LinkLayer 6LoWPAN: - BTLE - lowpan_btle_dev - 802.15.4: - lowpan_802154_dev Signed-off-by: Alexander Aring <aar@pengutronix.de> Reviewed-by: Stefan Schmidt<stefan@osg.samsung.com> Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-03-106lowpan: debugfs: add missing staticAlexander Aring1-2/+2
This patch solves the sparse warning: net/6lowpan/debugfs.c:164:30: warning: symbol 'lowpan_ctx_pfx_fops' was not declared. Should it be static? net/6lowpan/debugfs.c:241:30: warning: symbol 'lowpan_context_fops' was not declared. Should it be static? Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-02-236lowpan: iphc: add support for stateful compressionAlexander Aring1-0/+247
This patch introduce support for IPHC stateful address compression. It will offer the context table via one debugfs entry. This debugfs has and directory for each cid entry for the context table. Inside each cid directory there exists the following files: - "active": If the entry is added or deleted. The context table is original a list implementation, this flag will indicate if the context is part of list or not. - "prefix": The ipv6 prefix. - "prefix_length": The prefix length for the prefix. - "compression": The compression flag according RFC6775. This part should be moved into sysfs after some testing time. Also the debugfs entry contains a "show" file which is a pretty-printout for the current context table information. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-12-106lowpan: add debugfs supportAlexander Aring1-0/+53
This patch will introduce a 6lowpan entry into the debugfs if enabled. Inside this 6lowpan directory we create a subdirectories of all 6lowpan interfaces to offer a per interface debugfs support. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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