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This patch correctly resolves the sparse warnings found with this
function.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch fixes the allocation function in igb_get_i2c_client to use
GFP_ATOMIC instead of GFP_KERNEL because we have a spinlock.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch fixes an issue where we check for irq's disabled then exit after
explicitly disabling them with spin_lock_irqsave.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <arron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This change makes it so that we can enable the use of build_skb for cases
where jumbo frames are disabled. The advantage to this is that we do not
have to perform a memcpy to populate the header and as a result we see a
significant performance improvement.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Rename PIN_CONFIG_INPUT_SCHMITT_DISABLE to
PIN_CONFIG_INPUT_SCHMITT_ENABLE. It's used to make it more generialize.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Otherwise memory corruption occurs when using channel contexts (ATM when
param 'channel' > 1).
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Instead of modifying the HT SMPS capability field
for stations, track the SMPS mode explicitly in a
new field in the station struct and use it in the
drivers that care about it. This simplifies the
code using it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For VHT, many more bandwidth changes are possible. As a first
step, stop toggling the IEEE80211_HT_CAP_SUP_WIDTH_20_40 flag
in the HT capabilities and instead introduce a bandwidth field
indicating the currently usable bandwidth to transmit to the
station. Of course, make all drivers use it.
To achieve this, make ieee80211_ht_cap_ie_to_sta_ht_cap() get
the station as an argument, rather than the new capabilities,
so it can set up the new bandwidth field.
If the station is a VHT station and VHT bandwidth is in use,
also set the bandwidth accordingly.
Doing this allows us to get rid of the supports_40mhz flag as
the HT capabilities now reflect the true capability instead of
the current setting.
While at it, also fix ieee80211_ht_cap_ie_to_sta_ht_cap() to not
ignore HT cap overrides when MCS TX isn't supported (not that it
really happens...)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Patch 85a18198 "clk: sunxi: Use common of_clk_init() function"
removed the clk-sunxi.c file but left the Makefile entry, which
causes a build error in multi_v7_defconfig:
make[4]: *** No rule to make target `drivers/clk/clk-sunxi.o', needed by `drivers/clk/built-in.o'.
The obvious fix is to remove the extraneous line from the
Makefile.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Maxime Ripard <maxime.ripard@anandra.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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The 'operations' bitmap corresponds one-for-one with the operation
codes, no adjustment is necessary.
Reported-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove the casts of the first argument of memset.
Neaten the style by using the sizeof the actual variable
being memset not the sizeof the type of variable.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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These messages don't seem to be errors but notifications
that some attribute isn't quite right.
Don't mark them as errors.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch check output of pci_map_single() calls. I missed them on
my previous patch "iwlegacy: check for dma mapping errors", which
fixed only pci_map_page() calls.
To handle remaining possible dma mappings errors, we need to rearrange
ilXXXX_tx_skb() and il_enqueue_hcmd() functions.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Check output of dma_map_single functions which nowadays can fail (when
IOMMU is used). On write_beacon callbacks just print error, similar
like padding error is handled by rt2800_write_beacon.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch adds support for handling of PCIe sleep cookie depending
upon device properties. Some PCIe devices need sleep cookie probing
before accessing HW while some others don't. A new sleep_cookie
variable is defined as part of mwifiex_pcie_card_reg strcture and
set/reset as per device capability.
Sleep cookie is allocated/accessed/freed only when flag sleep_cookie
for this particular device is enabled.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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As the number of drivers in the rtlwifi family has grown, the Kconfig
section for them has grown unwieldy. This change has two effects: (1)
Variable RTLWIFI_DEBUG is documented, and (2) the entries for the
drivers that depend on RTLWIFI are indented.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ccode is not NUL terminated. Presumably insisting on a terminator makes
brcms_c_country_valid() return false when it's not intended. ccode[2]
is sprom->leddc_on_time.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
drivers/net/wireless/iwlwifi/dvm/tx.c
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This fixes a less obvious error on one hand, and prevents futher
similar errors by disambiguating and optimizing RxFCB indication,
on the other hand.
The error consists in NETIF_F_HW_VLAN_TX flag being used as an
indication of Rx FCB insertion. This happened as soon gfar_uses_fcb(),
which despite its name indicates Rx FCB insertion, started
incorporating is_vlan_on().
is_vlan_on(), on the other hand, is also a misleading construct because
we need to differentiate b/w hw VLAN extraction/VLEX (marked by VLAN_RX
flag) and hw VLAN insertion/VLINS (VLAN_TX flag), which are different
mechanisms using different types of FCBs.
The hw spec for the RxFCB feature is as follows:
In the case of RxBD rings, FCBs (Frame Control Block) are inserted by
the eTSEC whenever RCTRL[PRSDEP] is set to a non-zero value. Only one
FCB is inserted per frame (in the buffer pointed to by the RxBD with
bit F set). TOE acceleration for receive is enabled for all rx frames
in this case.
This patch introduces priv->uses_rxfcb field to quickly signal RxFCB
insertion in accordance with the specification above.
The dependency on FSL_GIANFAR_DEV_HAS_TIMER was also eliminated as
another source of confusion. The actual dependency is to priv->hwts_rx_en.
Upon changing priv->hwts_rx_en via IOCTL, the gfar device is being
restarted and on init_mac() the priv->hwts_rx_en flag determines RxFCB
insertion, and rctrl is programmed accordingly. The patch takes care
of this case too.
Though maybe not as self documenting as the inlining version uses_fcb(),
priv->uses_rxfcb has the main purpose to quickly signal, on the hot path,
that the incoming frame has a *Rx* FCB block inserted which needs to be
pulled out before passing the skb to the stack. This is a performance
critical operation, it needs to happen fast, that's why uses_rxfcb is
placed in the first cacheline of gfar_private.
This is also why a cached rctrl cannot be used instead: 1) because
we don't have 32 bits available in the first cacheline of gfar_priv
(but only 16); 2) bit operations are expensive on the hot path.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The controller's ref manual states clearly that when the hw Rx vlan
offload feature is enabled, meaning that the VLEX bit from RCTRL is
correctly enabled, then the hw performs automatic VLAN tag extraction
and deletion from the ethernet frames. So there's no point in trying to
increase the rx buff size when rxvlan is on, as the frame is actually
smaller.
And the Tx vlan hw accel feature (VLINS) has nothing to do with rx buff
size computation.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No return code is expected from gfar_process_frame(), hence
change it to return void.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The change is significant since it affects the rx hot path.
Paul observed and documented the effects at asm level, see
below:
"It turns out that it does make a difference, since gfar_process_frame
gets inlined, and so the increment code gets moved out of line (I have
marked the if statment with * and the increment code within "-----"):
------------------------- as is currently ------------------
4d14: 80 61 00 18 lwz r3,24(r1)
4d18: 7f c4 f3 78 mr r4,r30
4d1c: 48 00 00 01 bl 4d1c <gfar_clean_rx_ring+0x10c>
* 4d20: 2f 83 00 04 cmpwi cr7,r3,4
4d24: 40 9e 00 1c bne- cr7,4d40
<gfar_clean_rx_ring+0x130>
----------------------------
4d28: 81 3c 01 f8 lwz r9,504(r28)
4d2c: 81 5c 01 fc lwz r10,508(r28)
4d30: 31 4a 00 01 addic r10,r10,1
4d34: 7d 29 01 94 addze r9,r9
4d38: 91 3c 01 f8 stw r9,504(r28)
4d3c: 91 5c 01 fc stw r10,508(r28)
----------------------------
4d40: a0 1f 00 24 lhz r0,36(r31)
4d44: 81 3f 00 00 lwz r9,0(r31)
4d48: 7f a4 eb 78 mr r4,r29
4d4c: 7f e3 fb 78 mr r3,r31
-------------------------- unlikely ------------------------
4d14: 80 61 00 18 lwz r3,24(r1)
4d18: 7f c4 f3 78 mr r4,r30
4d1c: 48 00 00 01 bl 4d1c <gfar_clean_rx_ring+0x10c>
* 4d20: 2f 83 00 04 cmpwi cr7,r3,4
4d24: 41 9e 03 94 beq- cr7,50b8
<gfar_clean_rx_ring+0x4a8>
4d28: a0 1f 00 24 lhz r0,36(r31)
4d2c: 81 3f 00 00 lwz r9,0(r31)
4d30: 7f a4 eb 78 mr r4,r29
4d34: 7f e3 fb 78 mr r3,r31
[...]
50b8: 81 3c 01 f8 lwz r9,504(r28)
50bc: 81 5c 01 fc lwz r10,508(r28)
50c0: 31 4a 00 01 addic r10,r10,1
50c4: 7d 29 01 94 addze r9,r9
50c8: 91 3c 01 f8 stw r9,504(r28)
50cc: 91 5c 01 fc stw r10,508(r28)
50d0: 4b ff fc 58 b 4d28 <gfar_clean_rx_ring+0x118>
So, the increment does actually get moved ~1k away."
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Group run-time critical fields within the 1st cacheline (32B)
followed by the tx|rx_queue reference arrays and the interrupt
group instances (gfargrp), all cacheline aligned.
This has several benefits. Firstly comes the performance benefit
by having the members required by the driver's hot path re-grouped
in the structure's first cache lines, whereas the unimportant
members were pushed towards the end of the struct.
Another benefit comes from eliminating a 24 byte memory hole that
was rendering gfar_priv's 2nd cacheline useless. The default gcc
layout of gfar_private leaves an implicit 24 byte hole after the
errata (enum) member. This patch fixes it.
The uchar bitfields were pushed towards the end of the struct
as these are not run-time performance critical (used for init
time operations). Because there is no other 2 byte member
around to couple the uchar bitfields memeber with, we will
have an addititnal 2 byte hole after the bitfields. This is
unsignificant however, and it doesn't influence gfar_priv's
size, because the whole structure is padded to be a 32B multiple.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use device pointer (dev) to simplify the code and to
avoid double indirections, especially on the hot path.
Basically, instead of accessing priv to get the ofdev
reference and then accessing the ofdev structure to
dereference the needed dev pointer, we will get the
dev pointer directly from priv.
The dev pointer is required on the hot path, see gfar_new_rxbdp
or gfar_clean_rx_ring (or xmit), and this patch makes
it available directly from priv's 1st cacheline.
This change is reflected at asm level too, taking (the hot)
gfar_new_rxbdp():
initial version -
18c0: 7c 7e 1b 78 mr r30,r3
18d0: 81 69 04 3c lwz r11,1084(r9)
18d8: 34 6b 00 10 addic. r3,r11,16
18dc: 41 82 00 08 beq- 18e4
patched version -
18d0: 80 69 04 38 lwz r3,1080(r9)
18d8: 2f 83 00 00 cmpwi cr7,r3,0
18dc: 41 9e 00 08 beq- cr7,18e4
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove unused device node pointer.
Remove duplicated SET_NETDEV_DEV().
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The specs prescribe an immediate read of the interrupt mask after
disabling interrupts. This patch updates the driver to match the
specs.
Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the credit timer is left armed after calling
xen_netbk_remove_xenvif(), then it may fire and attempt to schedule
the vif which will then oops as vif->netbk == NULL.
This may happen both in the fatal error path and during normal
disconnection from the front end.
The sequencing during shutdown is critical to ensure that: a)
vif->netbk doesn't become unexpectedly NULL; and b) the net device/vif
is not freed.
1. Mark as unschedulable (netif_carrier_off()).
2. Synchronously cancel the timer.
3. Remove the vif from the schedule list.
4. Remove it from it netback thread group.
5. Wait for vif->refcnt to become 0.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reported-by: Christopher S. Aker <caker@theshore.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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netbk_count_requests() could detect an error, call
netbk_fatal_tx_error() but return 0. The vif may then be used
afterwards (e.g., in a call to netbk_tx_error().
Since netbk_fatal_tx_error() could set vif->refcnt to 1, the vif may
be freed immediately after the call to netbk_fatal_tx_error() (e.g.,
if the vif is also removed).
Netback thread Xenwatch thread
-------------------------------------------
netbk_fatal_tx_err() netback_remove()
xenvif_disconnect()
...
free_netdev()
netbk_tx_err() Oops!
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reported-by: Christopher S. Aker <caker@theshore.net>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
added a test for a CDC MBIM altsetting, implementing the cdc_ncm part of
MBIM backward compatibility support. This intentionally made the driver
behave differently for CDC NCM devices with 2 alternate settings for the
Communication interface, depending on whether or not CONFIG_USB_NET_CDC_MBIM
was enabled. This is correct iff alternate setting #1 really *is* a MBIM
setting. If not, then NCM probing will use a different altsetting than before,
possibly causing probing failures depending on CONFIG_USB_NET_CDC_MBIM.
Fix by setting the altsetting back to default after the test, restoring the
previous behaviour for non MBIM devices.
This bug causes probing of Huawei E3276 devices to fail when the MBIM driver
is enabled, because these devices have a second alternate setting with no CDC
functional descriptors.
Cc: Greg Suarez <gsuarez@smithmicro.com>
Cc: Alexey Orishko <alexey.orishko@stericsson.com>
Reported-and-tested-by: Jonathan A. <yo.natan@hotmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Separate out the common trackstick probe/setup sequences, then call them
from each of the v3 init functions.
Credits: Emmanual Thome furnished the information on the trackstick init
and how it affected the report format.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Rushmore touchpads are found on Dell E6230/E6430/E6530. They use the V3
protocol with slightly tweaked init sequences and report formats.
The E7 report is 73 03 0a, and the EC report is 88 08 1d
Credits: Emmanuel Thome reported the MT bitmap changes.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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A number of different ALPS touchpad protocols can reuse
alps_process_touchpad_packet_v3() with small tweaks to the bitfield
decoding. Create a new priv->decode_fields() callback that handles the
per-model differences.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Newer touchpads use different constants, so make them runtime-
configurable.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Pinnacle class devices should return "88 07 xx" or "88 08 xx" when
entering command mode. If either the first byte or the second byte is
invalid, return an error.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The official ALPS driver uses the EC report, not the E7 report, to detect
these devices. Also, they check for a range of values; the original
table-based code only checked for two specific ones.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This allows alps_identify() to override these settings based on the
device characteristics, if it is ever necessary.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In anticipation of adding more ALPS protocols and more per-device quirks,
use function pointers instead of switch statements to call functions that
differ from one device to the next.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If the E6 report test passes, get the E7 and EC reports right away and
then try to match an entry in the table.
Pass in the alps_data struct, so that the detection code will be able to
set operating parameters based on information found during detection.
Change the version (psmouse->model) to report the protocol version only,
in preparation for supporting models that do not show up in the ID table.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Several ALPS driver init sequences repeat a command three times, then
issue PSMOUSE_CMD_GETINFO to read the result. Move this into a helper
function to simplify the code.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This will minimize the number of forward declarations needed when
alps_get_model() starts assigning function pointers.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Not every type of ALPS touchpad is well-suited to table-based detection.
Start moving the various alps_model_data attributes into the alps_data
struct so that we don't need a unique table entry for every possible
permutation of protocol version, flags, byte0/mask0, etc.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add kernel-doc markup.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Some mmio devices have a dedicated interface clock that needs
to be enabled to access their registers. This patch optionally
enables a clock before accessing registers in the regmap_bus
callbacks.
I added (devm_)regmap_init_mmio_clk variants of the init
functions that have an added clk_id string parameter. This
is passed to clk_get to request the clock from the clk
framework.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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