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The audience for the Kernel driver-model is clearly Kernel hackers.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice driver changes
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Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
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Convert the various documents at the driver-model, preparing
them to be part of the driver-api book.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Based on 1 normalized pattern(s):
gplv2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 58 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some files use both a non-devm allocation and a devm_allocation. Don't
complain about a free when the same function contains a non-devm
allocation.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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krealloc() must not be used against devm_*() allocated
memory regions:
- if a bigger memory is to be allocated, krealloc() and
__krealloc() could return a different pointer than the
one given to them, creating a memory region which is not
managed, thus it will not be automatically released on
device removal.
- if a bigger memory is to be allocated, krealloc() could
kfree() the managed memory region which is passed to it.
The old pointer is left registered as a resource for the
device. On device removal, this dangling pointer will be
used and an unrelated memory region could be released.
- if the requested size is equal to 0, krealloc() can also
just behave like kfree(). Here too, the old pointer is
kept associated with the device. On device removal, this
invalid pointer will be used and an unrelated memory
region could be released.
For all these reasons, krealloc() must not be used on a
pointer returned by devm_*() functions.
Cc: Tejun Heo <tj@kernel.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
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Updates free/devm_free.cocci to recognize functions added by:
- commit 64c862a839a8 ('devres: add kernel standard devm_k.alloc functions')
- commit e31108cad3de ('devres: introduce API "devm_kstrdup"')
- commit 3046365bb470 ('devres: introduce API "devm_kmemdup')
- commit 43339bed7010 ('devres: Add devm_get_free_pages API')
- commit 75f2a4ead5d5 ('devres: Add devm_kasprintf and devm_kvasprintf API')
See also Documentation/driver-model/devres.txt
Cc: Joe Perches <joe@perches.com>
Cc: Manish Badarkhe <badarkhe.manish@gmail.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Eli Billauer <eli.billauer@gmail.com>
Cc: Himangi Saraogi <himangi774@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
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Since commit 3ef0e5ba4673 ('slab: introduce kzfree()'),
kfree() is no more the only function to be considered:
kzfree() should be recognized too.
In particular, kzfree() must not be called on memory
allocated through devm_*() functions.
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
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spatch has changed its option scheme.
E.g., --no_show_diff is now --no-show-diff
This patch updates:
- scripts/coccicheck
- Semantic patches under scripts/coccinelle/
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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devm_ functions allocate memory that is to remain allocated until the
device is detached. This patch checks for freeing of such memory using
standard memory freeing functions.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Mauro Carvalho Chehab
Linus Torvalds
Thomas Gleixner
Julia Lawall
Yann Droneaud
Nicolas Palix