Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20211019171243.1412240-9-kuba@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A new warning in clang points out a place in this file where a bitwise
OR is being used with boolean expressions:
In file included from drivers/staging/wlan-ng/prism2usb.c:2:
drivers/staging/wlan-ng/hfa384x_usb.c:3787:7: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/wlan-ng/hfa384x_usb.c:3787:7: note: cast one or both operands to int to silence this warning
1 warning generated.
The comment explains that short circuiting here is undesirable, as the
calls to test_and_{clear,set}_bit() need to happen for both sides of the
expression.
Clang's suggestion would work to silence the warning but the readability
of the expression would suffer even more. To clean up the warning and
make the block more readable, use a variable for each side of the
bitwise expression.
Link: https://github.com/ClangBuiltLinux/linux/issues/1478
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211014215703.3705371-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the big set of staging and IIO driver updates for 5.15-rc1.
Also included in here are the counter driver subsystem updates as the
IIO drivers needed them.
Lots of churn in some staging drivers, we dropped the "old" rtl8188eu
driver and replaced it with a newer version of the driver that had been
maintained out-of-tree by Larry with the end goal of actually being able
to get this driver out of staging eventually. Despite that driver being
"newer" the line count of this pull request is going up.
Some drivers moved out of staging as well, which is always nice to see,
that is why there are additions to the mfc and misc driver subsystems.
All of these were acked by the various subsystem maintainers involved.
But by far, as normal, it's coding style cleanups all over the
drivers/staging/ tree in here.
Full details of these changes are in the shortlog.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull IIO and staging driver updates from Greg KH:
"Here is the big set of staging and IIO driver updates for 5.15-rc1.
Also included in here are the counter driver subsystem updates as the
IIO drivers needed them.
Lots of churn in some staging drivers, we dropped the "old" rtl8188eu
driver and replaced it with a newer version of the driver that had
been maintained out-of-tree by Larry with the end goal of actually
being able to get this driver out of staging eventually. Despite that
driver being "newer" the line count of this pull request is going up.
Some drivers moved out of staging as well, which is always nice to
see, that is why there are additions to the mfc and misc driver
subsystems. All of these were acked by the various subsystem
maintainers involved.
But by far, as normal, it's coding style cleanups all over the
drivers/staging/ tree in here.
Full details of these changes are in the shortlog.
All of these have been in linux-next for a while with no reported
problems"
[ Note: the r8188eu merge clashed with commit 89939e8906 ("staging:
rtlwifi: use siocdevprivate") from the networking tree. When resolving
the issue, I noted that the whole r8188eu rtw_android code is dead
since commit ae7471cae0 ("staging: r8188eu: remove rtw_ioctl
function").
End result: the merge resolution was to throw all of that away,
rather than do the mindless fixup to code that isn't actually
reachable - Linus ]
* tag 'staging-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (551 commits)
staging: vt6655: Remove filenames in files
staging: r8188eu: add extra TODO entries
staging: vt6656: Remove filenames in files
staging: wlan-ng: fix invalid assignment warning
staging: r8188eu: rename fields of struct rtl_ps
staging: r8188eu: remove ODM_DynamicPrimaryCCA_DupRTS()
staging: r8188eu: rename fields of struct dyn_primary_cca
staging: r8188eu: rename struct field Wifi_Error_Status
staging: r8188eu: Provide a TODO file for this driver
staging: r8188eu: remove unneeded variable
staging: r8188eu: remove unneeded conversions to bool
staging: r8188eu: remove {read,write}_macreg
staging: r8188eu: core: remove condition with no effect
staging: r8188eu: remove ethernet.h header file
staging: r8188eu: remove ip.h header file
staging: r8188eu: remove if_ether.h header file
staging: r8188eu: make rtw_deinit_intf_priv return void
staging: r8188eu: use is_multicast_ether_addr in os_dep/recv_linux.c
staging: r8188eu: use is_multicast_ether_addr in hal/rtl8188eu_xmit.c
staging: r8188eu: use is_multicast_ether_addr in core/rtw_xmit.c
...
p80211_hdr->frame_control is u16, change to __le16
to satisfy sparse warning:
wlan-ng/prism2sta.c:253:43: warning: invalid assignment: |=
wlan-ng/prism2sta.c:253:43: left side has type unsigned short
wlan-ng/prism2sta.c:253:43: right side has type restricted __le16
Fixes: 6277fbfdd2 ("staging: wlan-ng: Remove pointless a3/a4 union")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Aakash Hemadri <aakashhemadri123@gmail.com>
Link: https://lore.kernel.org/r/20210828042949.2276341-1-aakashhemadri123@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need for the a3/a4 union. The two structs are identical
except for the addition of a4. Excepting one place, the structs are
only ever used in the union, and the union is always allocated at full
size. The one instance of the a3-specific struct can be replaced with
the full version, as no sizing information is used. Replace the union
with the a4 version of the struct. "diffoscope" reports there are no
object code differences after this change.
Cc: Allen Pais <apais@linux.microsoft.com>
Cc: Romain Perier <romain.perier@gmail.com>
Cc: Chen Lin <chen.lin5@zte.com.cn>
Cc: Ivan Safonov <insafonov@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210819174537.3499227-2-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
struct hfa384x_wpa_data ends with a flexible array, but it is allocated
on the stack. This means it can never hold any data. Disable the
memcpy() calls in and out of the structure, since it must always be
zero. This could never have worked.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210818081937.1668775-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wlan-ng has two private ioctls that correctly work in compat
mode. Move these over to the new ndo_siocdevprivate mechanism.
The p80211netdev_ethtool() function is commented out and
has no use here, so this can be removed
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors. The safe replacement is strscpy().
Signed-off-by: Len Baker <len.baker@gmx.com>
Link: https://lore.kernel.org/r/20210717152032.10164-1-len.baker@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently p80211knetdev_do_ioctl use type casting to req->data to prevent
sparse warning while calling memdup_user, instead of type casting it here,
its better to change data type for data inside p80211ioctl_req to include
__user.
Signed-off-by: Ashish Kalra <eashishkalra@gmail.com>
Link: https://lore.kernel.org/r/YI1dKdfBKaSh3J8v@ashish-NUC8i5BEH
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The variable txresult is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20210422112046.245144-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes the following W=1 kernel build warning(s):
drivers/staging/wlan-ng/cfg80211.c: In function ‘prism2_scan’:
drivers/staging/wlan-ng/cfg80211.c:388:1: warning: the frame size of 1296 bytes is larger than 1024 bytes [-Wframe-larger-than=]
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sumera Priyadarsini <sylphrenadin@gmail.com>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210414181129.1628598-8-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <apais@linux.microsoft.com>
Link: https://lore.kernel.org/r/20200916061519.57602-1-allen.lkml@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Indent a number of arguments so that they align with the opening
parentheses of the function calls. Issues found by checkpatch.
Signed-off-by: Steff Richards <steff.richards.the.third@gmail.com>
Link: https://lore.kernel.org/r/20200824165356.GA5204@steffpad
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As said by Linus:
A symmetric naming is only helpful if it implies symmetries in use.
Otherwise it's actively misleading.
In "kzalloc()", the z is meaningful and an important part of what the
caller wants.
In "kzfree()", the z is actively detrimental, because maybe in the
future we really _might_ want to use that "memfill(0xdeadbeef)" or
something. The "zero" part of the interface isn't even _relevant_.
The main reason that kzfree() exists is to clear sensitive information
that should not be leaked to other future users of the same memory
objects.
Rename kzfree() to kfree_sensitive() to follow the example of the recently
added kvfree_sensitive() and make the intention of the API more explicit.
In addition, memzero_explicit() is used to clear the memory to make sure
that it won't get optimized away by the compiler.
The renaming is done by using the command sequence:
git grep -w --name-only kzfree |\
xargs sed -i 's/kzfree/kfree_sensitive/'
followed by some editing of the kfree_sensitive() kerneldoc and adding
a kzfree backward compatibility macro in slab.h.
[akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h]
[akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more]
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Joe Perches <joe@perches.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "Jason A . Donenfeld" <Jason@zx2c4.com>
Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge 5.8-rc7 into staging-next
We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the file cfg80211.c to avoid
the checkpatch.pl warning:
CHECK: Alignment should match open parenthesis
Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20200720122817.31164-1-sylphrenadin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We can't handle the case length > WLAN_DATA_MAXLEN.
Because the size of rxfrm->data is WLAN_DATA_MAXLEN(2312), and we can't
read more than that.
Thanks-to: Hillf Danton <hdanton@sina.com>
Reported-and-tested-by: syzbot+7d42d68643a35f71ac8a@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200326131850.17711-1-hqjagain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Create a new 'status' variable to store the value of a long argument
that goes over 80 characters. The status variable is also used for
an if check. Replacing that long statement in both places makes the
code much easier to read.
Note: the status variable is assigned after a needed byte order
conversion for usbin->rxfrm.desc.status, which uses a reference.
Issue reported by checkpatch.
Suggested-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: John B. Wyatt IV <jbwyatt4@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://lore.kernel.org/r/20200321225808.2494564-1-jbwyatt4@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a newline before the second argument for style, readability, and
consistency.
Please note: checkpatch reports the third argument as being over 80
characters, but not the second argument.
Signed-off-by: John B. Wyatt IV <jbwyatt4@gmail.com>
Link: https://lore.kernel.org/r/20200316221544.1251350-1-jbwyatt4@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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]
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 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: https://lore.kernel.org/r/20200220132908.GA30501@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the big staging/iio driver patches for 5.6-rc1
Included in here are:
- lots of new IIO drivers and updates for that subsystem
- the usual huge quantity of minor cleanups for staging drivers
- removal of the following staging drivers:
- isdn/avm
- isdn/gigaset
- isdn/hysdn
- octeon-usb
- octeon ethernet
Overall we deleted far more lines than we added, removing over 40k of
old and obsolete driver code.
All of these changes have been in linux-next for a while with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO updates from Greg KH:
"Here is the big staging/iio driver patches for 5.6-rc1
Included in here are:
- lots of new IIO drivers and updates for that subsystem
- the usual huge quantity of minor cleanups for staging drivers
- removal of the following staging drivers:
- isdn/avm
- isdn/gigaset
- isdn/hysdn
- octeon-usb
- octeon ethernet
Overall we deleted far more lines than we added, removing over 40k of
old and obsolete driver code.
All of these changes have been in linux-next for a while with no
reported issues"
* tag 'staging-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (353 commits)
staging: most: usb: check for NULL device
staging: next: configfs: fix release link
staging: most: core: fix logging messages
staging: most: core: remove container struct
staging: most: remove struct device core driver
staging: most: core: drop device reference
staging: most: remove device from interface structure
staging: comedi: drivers: fix spelling mistake "to" -> "too"
staging: exfat: remove fs_func struct.
staging: wilc1000: avoid mutex unlock without lock in wilc_wlan_handle_txq()
staging: wilc1000: return zero on success and non-zero on function failure
staging: axis-fifo: replace spinlock with mutex
staging: wilc1000: remove unused code prior to throughput enhancement in SPI
staging: wilc1000: added 'wilc_' prefix for 'struct assoc_resp' name
staging: wilc1000: move firmware API struct's to separate header file
staging: wilc1000: remove use of infinite loop conditions
staging: kpc2000: rename variables with kpc namespace
staging: vt6656: Remove memory buffer from vnt_download_firmware.
staging: vt6656: Just check NEWRSR_DECRYPTOK for RX_FLAG_DECRYPTED.
staging: vt6656: Use vnt_rx_tail struct for tail variables.
...
Currently when the call to prism2sta_ifst fails a netdev_err error
is reported, error return variable result is set to -1 but the
function always returns 0 for success. Fix this by returning
the error value in variable result rather than 0.
Addresses-Coverity: ("Unused value")
Fixes: 00b3ed1685 ("Staging: add wlan-ng prism2 usb driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200114181604.390235-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wlan-ng uses the function crc32_le,
but CRC32 wasn't a dependency of wlan-ng
Co-developed-by: Michael Kupfer <michael.kupfer@fau.de>
Signed-off-by: Michael Kupfer <michael.kupfer@fau.de>
Signed-off-by: Kay Friedrich <kay.friedrich@fau.de>
Link: https://lore.kernel.org/r/20191127112457.2301-1-kay.friedrich@fau.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The variant field in struct hfa384x_usbctlx is not referenced anywhere
in the driver, so remove it.
Signed-off-by: Tim Collier <osdevtc@gmail.com>
Link: https://lore.kernel.org/r/20191025084126.9181-6-osdevtc@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix compilation errors (remove references to 2 undefined fields in the
URB struct) when DEBUG_USB is defined for the wlan-ng driver.
Signed-off-by: Tim Collier <osdevtc@gmail.com>
Link: https://lore.kernel.org/r/20191025084126.9181-5-osdevtc@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Realign parameter in function declaration to fix checkpatch.pl warning
that parameter needed to be aligned with the opening parenthesis of
the declaration.
Signed-off-by: Tim Collier <osdevtc@gmail.com>
Link: https://lore.kernel.org/r/20191025084126.9181-4-osdevtc@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb_get_intfdata returns a void pointer. It is not necessary to
explicitly cast to the desired type and removing the casts is
consistent with most use of usb_get_intfdata.
Signed-off-by: Tim Collier <osdevtc@gmail.com>
Link: https://lore.kernel.org/r/20191025084126.9181-2-osdevtc@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently the exit return path when sme->key_idx >= NUM_WEPKEYS is via
label 'exit' and this checks if result is non-zero, however result has
not been initialized and contains garbage. Fix this by replacing the
goto with a return with the error code.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 0ca6d8e744 ("Staging: wlan-ng: replace switch-case statements with macro")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191014110201.9874-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove function prism2mib_excludeunencrypted as all it does is call
prism2mib_flag.
Modify call sites accordingly.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190802060913.30241-1-nishkadg.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Almost every user of "%*pE" in the kernel uses just bare "%*pE". This
is the only user of "%pEhp". I can't see why it's needed.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Link: https://lore.kernel.org/r/1562799656-13401-1-git-send-email-bfields@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
