| Age | Commit message (Collapse) | Author | Files | Lines |
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When feature VIRTIO_NET_F_MTU is negotiated on mlx5_vdpa,
22 extra bytes worth of MTU length is shown in guest.
This is because the mlx5_query_port_max_mtu API returns
the "hardware" MTU value, which does not just contain the
Ethernet payload, but includes extra lengths starting
from the Ethernet header up to the FCS altogether.
Fix the MTU so packets won't get dropped silently.
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210408091047.4269-2-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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drivers/usb/core/hub.c: usb_new_device() contains the following:
/* By default, forbid autosuspend for all devices. It will be
* allowed for hubs during binding.
*/
usb_disable_autosuspend(udev);
So for anything which is not a hub, such as btusb devices, autosuspend is
disabled by default and we must call usb_enable_autosuspend(udev) to
enable it.
This means that the "Fix the autosuspend enable and disable" commit,
which drops the usb_enable_autosuspend() call when the enable_autosuspend
module option is true, is completely wrong, revert it.
This reverts commit 7bd9fb058d77213130e4b3e594115c028b708e7e.
Cc: Hui Wang <hui.wang@canonical.com>
Fixes: 7bd9fb058d77 ("Bluetooth: btusb: Fix the autosuspend enable and disable")
Acked-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use the port struct device rather than tty class device for debugging.
Note that while USB serial doesn't support serdev yet (due to serdev not
handling hotplugging), serdev ttys do not have a corresponding class
device and would have been logged using a "(NULL device *):" prefix.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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Quanyang Wang <quanyang.wang@windriver.com>:
From: Quanyang Wang <quanyang.wang@windriver.com>
Hello,
This series fix some issues that occurs when the gqspi driver switches to spi-mem framework.
Hi Amit,
I rewrite the "Subject" and "commit message" of these patches, so they
look different from the ones which you reviewed before. I still keep
your "Reviewed-by" and hope you will not mind.
Regards,
Quanyang Wang
Quanyang Wang (4):
spi: spi-zynqmp-gqspi: use wait_for_completion_timeout to make
zynqmp_qspi_exec_op not interruptible
spi: spi-zynqmp-gqspi: add mutex locking for exec_op
spi: spi-zynqmp-gqspi: transmit dummy circles by using the
controller's internal functionality
spi: spi-zynqmp-gqspi: fix incorrect operating mode in
zynqmp_qspi_read_op
drivers/spi/spi-zynqmp-gqspi.c | 53 +++++++++++++++++-----------------
1 file changed, 27 insertions(+), 26 deletions(-)
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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Because pstate.max_freq is always equal to the product of
pstate.max_pstate and pstate.scaling and, analogously,
pstate.turbo_freq is always equal to the product of
pstate.turbo_pstate and pstate.scaling, the result of the
max_policy_perf computation in intel_pstate_update_perf_limits() is
always equal to the quotient of policy_max and pstate.scaling,
regardless of whether or not turbo is disabled. Analogously, the
result of min_policy_perf in intel_pstate_update_perf_limits() is
always equal to the quotient of policy_min and pstate.scaling.
Accordingly, intel_pstate_update_perf_limits() need not check
whether or not turbo is enabled at all and in order to compute
max_policy_perf and min_policy_perf it can always divide policy_max
and policy_min, respectively, by pstate.scaling. Make it do so.
While at it, move the definition and initialization of the
turbo_max local variable to the code branch using it.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
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The commit 8ba59e9dee31 ("misc: pti: Remove driver for deprecated platform")
got rid of deprecated drivers under TTY subsystem, but cleaned only one Kconfig
entry. Remove Kconfig leftovers.
Fixes: 8ba59e9dee31 ("misc: pti: Remove driver for deprecated platform")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210406131615.85432-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove obsolete MSG_8192C macro definitions.
MSG_8192C is a private trace mechanism macro and is deactivated.
(i.e. the default behaviour is _do nothing_)
The only way to activate it is to manually define a debug
symbol.
So just remove it.
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/97f38f269e8dabb3dd7464d49022a62cd9773657.1617971593.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove commented out MSG_8192C log.
MSG_8192C is a private trace mechanism macro and is deactivated.
(i.e. the default behaviour is _do nothing_)
The only way to activate it is to manually define a debug
symbol.
So just remove it.
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/845969563d7c90d1b7aa3215ae29dd91afc5100c.1617971592.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove all MSG_8192C logs.
MSG_8192C is a private trace mechanism macro and is deactivated.
(i.e. the default behaviour is _do nothing_)
The only way to activate it is to manually define a debug
symbol.
So just remove it.
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/fa7f52aa90928dc86b3249ca9c5b27f92c2b071b.1617971592.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix following kernel test robot warning:
At top level:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:36:27:
warning: 'iw_operation_mode' defined but not used
[-Wunused-const-variable=]
36 | static const char * const iw_operation_mode[] = {
| ^~~~~~~~~~~~~~~~~
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/05cc97a114269ee55ac9a91c61493c885fcc0193.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix following kernel test robot warning:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:
In function ‘rtw_wx_set_mlme’:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:1128:6:
warning: variable ‘reason’ set but
not used [-Wunused-but-set-variable]
u16 reason;
^~~~~~
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/6211c4177a9ef1e677987c9ebac445df08605f40.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix following kernel test robot warning:
At top level:
drivers/staging/rtl8723bs/include/rtw_security.h:336:28:
warning: 'K' defined but not used [-Wunused-const-variable=]
336 | static const unsigned long K[64] = {
| ^
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/819680ab87bbe543aba966f1fe47b209d3d8a69f.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove unused variable. Fix W=1 compiler warning:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:
In function ‘rtw_dbg_port’:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:2444:20:
warning: unused variable ‘pmlmepriv’ [-Wunused-variable]
struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/e8a31937b0075162104347e1c8ecc5e6d079f6d2.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove unused variable. Fix W=1 compiler warning:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:
In function ‘rtw_dbg_port’:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:2447:23:
warning: unused variable ‘cur_network’ [-Wunused-variable]
struct wlan_network *cur_network = &(pmlmepriv->cur_network);
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/6aed13408f912b6c36a19a5e91e17b1126fc6247.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove unused variable. W=1 compiler issue:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:
In function ‘rtw_dbg_port’:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:2448:19:
warning: unused variable ‘pstapriv’ [-Wunused-variable]
struct sta_priv *pstapriv = &padapter->stapriv;
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/d433ffa5b52d6510811c882a80c1146c7d7be536.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove set but unused variable. Fix W=1 compiler warning:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:
In function ‘rtw_dbg_port’:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:2443:19:
warning: variable ‘psta’ set but not used [-Wunused-but-set-variable]
struct sta_info *psta;
^~~~
Remove also the function call that sets this variable.
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/62b6c48b887decdde4b5343472089665518d205b.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix following kernel test robot warnings:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:
In function ‘rtw_dbg_port’:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:2548:33:
warning: variable ‘preorder_ctrl’ set but
not used [-Wunused-but-set-variable]
struct recv_reorder_ctrl *preorder_ctrl;
^~~~~~~~~~~~~
remove also unnecessary conditional code block.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/0e950e74565b573a98b851092cc2078045d5ac3d.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove unused code block which does nothing.
A list is parsed but no value is written outside
the scope of the function rtw_dbg_port.
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/b1d8f99f949fd79b27295e8a508d1b0c5861622f.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix following kernel test robot warnings:
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c:2573:33:
warning: variable ‘preorder_ctrl’ set but
not used [-Wunused-but-set-variable]
struct recv_reorder_ctrl *preorder_ctrl;
^~~~~~~~~~~~~
remove also empty for cycle left unused and counter variable.
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/fb1e8ea3cfeda1af27ab1a9393140e144b5cb4b5.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix following kernel test robot warning:
drivers/staging/rtl8723bs/core/rtw_cmd.c:
In function 'rtw_cmd_thread':
>> drivers/staging/rtl8723bs/core/rtw_cmd.c:390:16:
warning: variable 'cmd_start_time' set
but not used [-Wunused-but-set-variable]
390 | unsigned long cmd_start_time;
| ^~~~~~~~~~~~~~
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/509eeb1c4a7fcfc37b69cb8578ea146b95b50864.1617962215.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In rtw_cmd_thread's main loop, we wait until there's a command in the
queue. To skip this wait statement in subsequent iterations, the driver
uses a label and goto instead of the actual loop. We only get back to the
initial wait if the queue is empty when we read it.
Basically, all we want to do is check if there's a command in the queue.
If yes, we process it. If not, we wait until someone enqueues a command.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-12-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There's no need to set cmd_hdl to NULL after it's used. It will be set
again before the next command is processed.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-11-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There's two identical checks if the device was stopped or unplugged.
Remove one of them.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-10-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The rtl8188 driver starts a command thread that reads commands from a queue
and processes them. Each command consists of a struct cmd_obj. The command
thread may call a function to process the current command and optionally a
post-processing function. Eventually, the command's cmd_obj must be freed.
At the moment, if there's a post-processing function for the current
command, this function has to free the cmd_obj. If there's no
post-processing function, the command thread frees cmd_obj.
It's much simpler if we always leave it to the command thread to free
cmd_obj.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-9-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move the declaration of the rtw_cmd_callback array from rtw_cmd.h to
rtw_cmd.c.
The _RTW_CMD_C_ symbol is now obsolete and can be removed.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-8-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Declaring a static array in a header file is likely to cause name conflicts
if the declaration is pulled in multiple times.
The rtl8188 driver protects the declaration of the wlancmds array in
rtw_mlme_ext.h with ifdef _RTW_CMD_C_, which is defined only in rtw_cmd.c.
It makes more sense to declare the array in the .c file.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-7-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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enqueue is always 0.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-6-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The struct adapter parameter of rtw_os_recvbuf_resource_alloc is not used.
Remove it.
While at it, use the same parameter name in the prototype and the function
definition.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-5-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This switch has only one case. Replace it with an if statement.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This function is used only inside usb_ops_linux.c.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There's no usb_read_port_cancel function in this driver. Remove its
prototype.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Both usb_read_port_complete and usb_write_port_complete have a regs
parameter that is not used.
When this parameter is removed, the functions can be used as urb
completion callbacks directly. There's no need for the macros that
strip the second parameter.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-1-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix the following gcc warning:
drivers/staging/comedi/drivers/cb_pcidas64.c:232:19: warning: unused
function 'analog_trig_low_threshold_bits' [-Wunused-function].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1617949425-105420-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Return NULL from r8712_find_network() if no matched wlan_network
was found. Code with a bug:
while (plist != phead) {
pnetwork = container_of(plist, struct wlan_network, list);
plist = plist->next;
if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
break;
}
spin_unlock_irqrestore(&scanned_queue->lock, irqL);
return pnetwork;
In this code last processed pnetwork returned if list end was reached
and no pnetwork matched test condition.
Signed-off-by: Sergei Krainov <sergei.krainov.lkd@gmail.com>
Link: https://lore.kernel.org/r/20210409124611.GA3981@test-VirtualBox
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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GCC reports the following warning with W=1:
drivers/staging/rtl8723bs/hal/rtl8723b_cmd.c:532:23: warning:
variable 'pwrctl' set but not used [-Wunused-but-set-variable]
532 | struct pwrctrl_priv *pwrctl;
| ^~~~~~
This variable is not used so remove it to fix the warning.
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Link: https://lore.kernel.org/r/20210409045728.125852-1-pulehui@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The same code is executed when the condition "!show_errors" is true or
false. Remove the if condition from here. The original intension of this
condition was to not to report any error logs if condition was true. But
this driver doesn't has those logs added. So this if condition can be
removed.
Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com>
Addresses-Coverity: ("Same code execution")
Link: https://lore.kernel.org/r/20210408204457.GA3079308@LEGION
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The values defined in enum WIFI_FRAME_TYPE are the same the #define
IEEE80211_FTYPE_xxx from <linux/ieee80211.h>
Use these values to avoid code duplication.
WIFI_QOS_DATA_TYPE is a bit more tricky and doesn't have a direct
equivalence in <linux/ieee80211.h>. So leave this one as-is for now.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e009a4ee6429a3f79742f9a912e3f6a650fb33ed.1617911201.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The values defined in enum WIFI_FRAME_SUBTYPE are the same the #define
IEEE80211_STYPE_xxx from <linux/ieee80211.h>
Use theses values to avoid code duplication.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/5a6fdcf0b5eb43c3d5511b5badd60bfac9389628.1617911201.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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struct 'ieee80211_ht_addt_info' is unused and can be removed.
struct 'rtl_ieee80211_ht_cap' can be replaced by 'ieee80211_ht_cap'
defined in <linux/ieee80211.h> which has the same layout.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/4291cb10744457cc12c89fc9fd414c37d732bc9d.1617911201.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove including <linux/version.h> that don't need it.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com>
Link: https://lore.kernel.org/r/1617869845-43046-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Added spaces around '+' to improve readability and adhere to linux
kernel coding style.
Reported by checkpatch
Signed-off-by: Mitali Borkar <mitaliborkar810@gmail.com>
Link: https://lore.kernel.org/r/YG7uLQLGmAh97xB1@kali
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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TIOCSSERIAL is a horrid, underspecified, legacy interface which for most
serial devices is only useful for setting the close_delay and
closing_wait parameters.
The xmit_fifo_size parameter could be used to set the hardware transmit
fifo size of a legacy UART when it could not be detected, but the
interface is limited to eight bits and should be left unset when it is
not used.
Similarly, baud_base could be used to set the UART base clock when it
could not be detected, but might as well be left unset when it is not
known (which is the case for CDC).
Fix the cdc-acm TIOCGSERIAL implementation by dropping its custom
interpretation of the unused xmit_fifo_size and baud_base fields, which
overflowed the former with the URB buffer size and set the latter to the
current line speed. Also return the port line number, which is the only
other value used besides the close parameters.
Note that the current line speed can still be retrieved through the
standard termios interfaces.
Fixes: 18c75720e667 ("USB: allow users to run setserial with cdc-acm")
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210408131602.27956-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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TIOCSSERIAL is a horrid, underspecified, legacy interface which for most
serial devices is only useful for setting the close_delay and
closing_wait parameters.
A non-privileged user has only ever been able to set the since long
deprecated ASYNC_SPD flags and trying to change any other *supported*
feature should result in -EPERM being returned. Setting the current
values for any supported features should return success.
Fix the cdc-acm implementation which instead indicated that the
TIOCSSERIAL ioctl was not even implemented when a non-privileged user
set the current values.
Fixes: ba2d8ce9db0a ("cdc-acm: implement TIOCSSERIAL to avoid blocking close(2)")
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210408131602.27956-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit b401f8c4f492cbf74f3f59c9141e5be3071071bb.
The offending commit claimed that trying to set the values reported back
by TIOCGSERIAL as a regular user could result in an -EPERM error when HZ
is 250, but that was never the case.
With HZ=250, the default 0.5 second value of close_delay is converted to
125 jiffies when set and is converted back to 50 centiseconds by
TIOCGSERIAL as expected (not 12 cs as was claimed, even if that was the
case before an earlier fix).
Comparing the internal current and new jiffies values is just fine to
determine if the value is about to change so drop the bogus workaround
(which was also backported to stable).
For completeness: With different default values for these parameters or
with a HZ value not divisible by two, the lack of rounding when setting
the default values in tty_port_init() could result in an -EPERM being
returned, but this is hardly something we need to worry about.
Cc: Anthony Mallet <anthony.mallet@laas.fr>
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210408131602.27956-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add a displayport altmode fwnode to the usb-connector fwnode,
devices which use this driver support display-port altmode through
the PI3USB30532 USB switch, this enables support for this.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409134033.105834-4-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support for altmodes described in the usb-connector fwnode
associated with the Type-C controller by calling the new
typec_port_register_altmodes_from_fwnode() helper for this.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409134033.105834-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This can be used by Type-C controller drivers which use a standard
usb-connector fwnode, with altmodes sub-node, to describe the available
altmodes.
Note there are is no devicetree bindings documentation for the altmodes
node, this is deliberate. ATM the fwnodes used to register the altmodes
are only used internally to pass platform info from a drivers/platform/x86
driver to the type-c subsystem.
When a devicetree user of this functionally comes up and the dt-bindings
have been hashed out the internal use can be adjusted to match the
dt-bindings.
Currently the typec_port_register_altmodes() function expects
an "altmodes" child fwnode on port->dev with this "altmodes" fwnode having
child fwnodes itself with each child containing 2 integer properties:
1. A "svid" property, which sets the id of the altmode, e.g. displayport
altmode has a svid of 0xff01.
2. A "vdo" property, typically used as a bitmask describing the
capabilities of the altmode, the bits in the vdo are specified in the
specification of the altmode.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409134033.105834-2-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb_role_switch_find_by_fwnode() returns a reference to the role-switch
which must be put by calling usb_role_switch_put().
usb_role_switch_put() calls module_put(sw->dev.parent->driver->owner),
add a matching try_module_get() to usb_role_switch_find_by_fwnode(),
making it behave the same as the other usb_role_switch functions
which return a reference.
This avoids a WARN_ON being hit at kernel/module.c:1158 due to the
module-refcount going below 0.
Fixes: c6919d5e0cd1 ("usb: roles: Add usb_role_switch_find_by_fwnode()")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210409124136.65591-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The clocks are configured by devm_clk_bulk_get_all() in this driver. In
case of any error the clocks freeing will be handled automatically.
There is no need to explicitly free the clocks. Fix the same.
Fixes: 84770f028fab ("usb: dwc3: Add driver for Xilinx platforms")
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Link: https://lore.kernel.org/r/1617904448-74611-3-git-send-email-manish.narani@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kernel-doc run gave a warning for Xilinx DWC3 driver:
drivers/usb/dwc3/dwc3-xilinx.c:27: warning: expecting prototype for
dwc3(). Prototype was for XLNX_USB_PHY_RST_EN() instead
Basically it was due to an extra '*' in line:2. This patch fixes the same.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Link: https://lore.kernel.org/r/1617904448-74611-2-git-send-email-manish.narani@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Si-Wei Liu
Hans de Goede
Johan Hovold
Mark Brown
Rafael J. Wysocki
Andy Shevchenko
Fabio Aiuto
Martin Kaiser
Jiapeng Chong
Sergei Krainov
Pu Lehui
Muhammad Usama Anjum
Christophe JAILLET
Tian Tao
Mitali Borkar
Manish Narani