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Add SPDX-License-Identifier lines to some files where
they are missing in the net/wireless directory.
Remove licensing text from individual files headers (where
present) to canonicalize the library references.
Use (mostly) either GPL-2.0 or ISC, depending on the
license wording (or not) in the files.
radiotap.c does not mention which BSD variant it intends for the
license. My selection of 'OR BSD-2-Clause' for radiotap.c was
based on research into this code's history and its licensing
elsewhere. In OpenBSD, radiotap code (which likely either
derived from this code, or this code was derived from) has the
BSD-2-Clause license. Very similar code in the radiotap library
user space tool, by the same authors Andy Green and Johannes
Berg, has an ISC license. Also the ISC license is used by
Johannes for other contributions in the Linux wireless system.
Since the radiotap.c license text here mentions BSD, but not a
specific version, I chose the closest BSD variant to ISC, which
is BSD-2-Clause.
Signed-off-by: Tim Bird <tim.bird@sony.com>
Link: https://patch.msgid.link/20260305220422.24161-1-tim.bird@sony.com
[modify subject since it's not all radiotap]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
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This patch adds a helper for reading that new property and applying
limitations of supported channels specified this way.
It is used with devices that normally support a wide wireless band but
in a given config are limited to some part of it (usually due to board
design). For example a dual-band chipset may be able to support one band
only because of used antennas.
It's also common that tri-band routers have separated radios for lower
and higher part of 5 GHz band and it may be impossible to say which is
which without a DT info.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
[add new function to documentation, fix link]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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