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The double `only' is duplicated in the comment, remove one.
Signed-off-by: Jason Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Miri Korenblit <[email protected]>
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Fix a couple of kernel-doc warnings in the old DVM code.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Miri Korenblit <[email protected]>
Link: https://patch.msgid.link/20250611222325.b33528d06431.I948261d6610c47f09133fa73f5e5ea9b9848fd21@changeid
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-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
So, in order to avoid ending up with a flexible-array member in the
middle of multiple other structs, we use the `__struct_group()`
helper to create a new tagged `struct iwl_tx_cmd_hdr`. This structure
groups together all the members of the flexible `struct iwl_tx_cmd`
except the flexible array.
As a result, the array is effectively separated from the rest of the
members without modifying the memory layout of the flexible structure.
We then change the type of the middle struct members currently causing
trouble from `struct iwl_tx_cmd` to `struct iwl_tx_cmd_hdr`.
We also want to ensure that when new members need to be added to the
flexible structure, they are always included within the newly created
tagged struct. For this, we use `static_assert()`. This ensures that the
memory layout for both the flexible structure and the new tagged struct
is the same after any changes.
This approach avoids having to implement `struct iwl_tx_cmd_hdr`
as a completely separate structure, thus preventing having to maintain
two independent but basically identical structures, closing the door
to potential bugs in the future.
So, with these changes, fix the following warnings:
drivers/net/wireless/intel/iwlwifi/dvm/commands.h:2315:27: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/iwlwifi/dvm/commands.h:2426:27: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Acked-by: Miri Korenblit <[email protected]>
Link: https://patch.msgid.link/Zr5QR03+wyw571zd@elsanto
Signed-off-by: Johannes Berg <[email protected]>
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Mostly the docs just aren't kernel-doc anyway, and one is a typo.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Miri Korenblit <[email protected]>
Link: https://patch.msgid.link/20240625194805.8b12f56bf8c0.I64fa9df72ca0e862b96647c062b8c9464318e649@changeid
Signed-off-by: Johannes Berg <[email protected]>
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Mostly remove kernel-doc comment annotation since
the comments really aren't kernel-doc, and fix a
few other places.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Gregory Greenman <[email protected]>
Link: https://lore.kernel.org/r/20230830112059.7178fb7c96fb.I6af1f291e306c50a3c4f5afcdc2ba0bbd4bea01f@changeid
Signed-off-by: Johannes Berg <[email protected]>
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In support of enabling -Warray-bounds and -Wzero-length-bounds and
correctly handling run-time memcpy() bounds checking, replace all
open-coded flexible arrays (i.e. 0-element arrays) in unions with the
DECLARE_FLEX_ARRAY() helper macro.
This fixes warnings such as:
fs/hpfs/anode.c: In function 'hpfs_add_sector_to_btree':
fs/hpfs/anode.c:209:27: warning: array subscript 0 is outside the bounds of an interior zero-length array 'struct bplus_internal_node[0]' [-Wzero-length-bounds]
209 | anode->btree.u.internal[0].down = cpu_to_le32(a);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from fs/hpfs/hpfs_fn.h:26,
from fs/hpfs/anode.c:10:
fs/hpfs/hpfs.h:412:32: note: while referencing 'internal'
412 | struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving
| ^~~~~~~~
drivers/net/can/usb/etas_es58x/es58x_fd.c: In function 'es58x_fd_tx_can_msg':
drivers/net/can/usb/etas_es58x/es58x_fd.c:360:35: warning: array subscript 65535 is outside the bounds of an interior zero-length array 'u8[0]' {aka 'unsigned char[]'} [-Wzero-length-bounds]
360 | tx_can_msg = (typeof(tx_can_msg))&es58x_fd_urb_cmd->raw_msg[msg_len];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/can/usb/etas_es58x/es58x_core.h:22,
from drivers/net/can/usb/etas_es58x/es58x_fd.c:17:
drivers/net/can/usb/etas_es58x/es58x_fd.h:231:6: note: while referencing 'raw_msg'
231 | u8 raw_msg[0];
| ^~~~~~~
Cc: "Gustavo A. R. Silva" <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Ayush Sawal <[email protected]>
Cc: Vinay Kumar Yadav <[email protected]>
Cc: Rohit Maheshwari <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Kalle Valo <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: Stanislaw Gruszka <[email protected]>
Cc: Luca Coelho <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: "Martin K. Petersen" <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Yonghong Song <[email protected]>
Cc: John Fastabend <[email protected]>
Cc: KP Singh <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Mordechay Goodstein <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Wolfgang Grandegger <[email protected]>
Cc: Marc Kleine-Budde <[email protected]>
Cc: Arunachalam Santhanam <[email protected]>
Cc: Vincent Mailhol <[email protected]>
Cc: Mikulas Patocka <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Marc Kleine-Budde <[email protected]> # drivers/net/can/usb/etas_es58x/*
Signed-off-by: Kees Cook <[email protected]>
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Use SPDX tags instead of the long copyright notices. Also cleanup
some duplicate copyright notices and combine the years where possible.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
Link: https://lore.kernel.org/r/iwlwifi.20201210000603.481bcb512a6f.I8146abe5a637079e7336209f23cb26af98b12b31@changeid
Signed-off-by: Luca Coelho <[email protected]>
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The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
Link: https://lore.kernel.org/r/20200507185538.GA14674@embeddedor
Signed-off-by: Luca Coelho <[email protected]>
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The Free Software Foundation address is superfluous and causes
checkpatch to issue a warning when present. Remove all paragraphs
with FSF's address to prevent that.
Signed-off-by: Luca Coelho <[email protected]>
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There are still some references to 3945 and 4965 HW, which were never
supported in iwlwifi. These references were inherited from a previous
project and are irrelevant here. Additionally, remove some irrelevant
references to 5100 HW. Remove all these.
Signed-off-by: Luca Coelho <[email protected]>
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Those constants have been unused for quite some time now.
Signed-off-by: Seraphime Kirkovski <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
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[email protected] is not available anymore.
[email protected] should be used instead.
Signed-off-by: Emmanuel Grumbach <[email protected]>
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Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <[email protected]>
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