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2014-12-01wil6210: add handling of RX HTRSH interruptVladimir Kondratiev
RX_HTRSH interrupt is handled in exactly the same manner as RX_DONE interrupt - fetching accumulated packets from RX ring. In addition there's a rate limitted warning message. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01wil6210: propagate disconnect reasonVladimir Kondratiev
Propagate reason for the disconnect through the relevant call chains: - report to cfg80211 reason as reported by the firmware - provide to the firmware reason as requested by cfg80211 Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01ath9k: do not access hardware on IRQs during resetFelix Fietkau
Instead of killing interrupts during reset when the first one happens, kill them before issuing the reset. This fixes an easy to reproduce crash with multiple cards sharing the same IRQ. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01ath9k: set ATH_OP_INVALID before disabling hardwareFelix Fietkau
Closes another small IRQ handler race Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01ath9k: prevent early IRQs from accessing hardwareFelix Fietkau
IRQs are suppressed if ah == NULL and ATH_OP_INVALID being set in common->op_flags. Close a short time window between those two. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01ath5k: fix hardware queue index assignmentFelix Fietkau
Like with ath9k, ath5k queues also need to be ordered by priority. queue_info->tqi_subtype already contains the correct index, so use it instead of relying on the order of ath5k_hw_setup_tx_queue calls. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01ath9k: fix BE/BK queue orderFelix Fietkau
Hardware queues are ordered by priority. Use queue index 0 for BK, which has lower priority than BE. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01ath9k_hw: fix hardware queue allocationFelix Fietkau
The driver passes the desired hardware queue index for a WMM data queue in qinfo->tqi_subtype. This was ignored in ath9k_hw_setuptxqueue, which instead relied on the order in which the function is called. Cc: stable@vger.kernel.org Reported-by: Hubert Feurstein <h.feurstein@gmail.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01brcmsmac: NULL dereferences in brcms_c_detach_mfree()Dan Carpenter
The brcms_c_attach_malloc() function can call this with a NULL "wlc->corestate" or "wlc->hw". Also I threw in a bonus cleanup by deleting an obvious comment and a no-op NULL assignment. :) Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01Revert "rt2x00: Endless loop on hub port power down"Stanislaw Gruszka
This reverts commit 2ad69ac5976191e9bb7dc4044204a504653ad1bb. It causes wireless device disappear when we get -EPROTO error form USB request. I encounter such situation occasionally when resume form suspend with RT3070 adapter: [ 289.619985] ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x0404 with error -71 [ 289.639368] ieee80211 phy0: rt2800_wait_bbp_ready: Error - BBP register access failed, aborting [ 289.639374] ieee80211 phy0: rt2800usb_set_device_state: Error - Device failed to enter state 4 (-5) Without the patch, except printing error, device works just fine after resume. Currently after timeouts and REGISTER_BUSY_COUNT tuning, we should not have any "endless loop", though we can wait quite long when driver is trying to communicate with the device through non functioning USB connection. Generally the problem that commit 2ad69ac597619 solves is kinda artificial. Cc: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01rt2x00: change REGISTER_TIMEOUTStanislaw Gruszka
Waiting 500ms for register access is too long, decrease this value to 100ms. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01rt2x00: change REGISTER_BUSY_COUNT for USBStanislaw Gruszka
Because of delays on USB we do not have to iterate so many times on USB hardware when waiting for H/W register become valid. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01rt2x00: use timeout in rt2x00usb_vendor_requestStanislaw Gruszka
Use provided timeout value in rt2x00usb_vendor_request() instead of iterating REGISTER_BUSY_COUNT times. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01brcmsmac: extend hardware info shown in debugfsArend van Spriel
The hardware info now also include radio and phy information, which can be helpful in debugging issues. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01brcmutil: add helper function to format board revisionArend van Spriel
The board revision that is available in hardware can be translated so it matches the labelling on the board. This is accomplished by this helper function. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01rt2800: calculate tx power temperature compensation on selected chipsStanislaw Gruszka
Currently implemented temperature compensation is only valid on some of supported chips. Other chips do not need temperature compensation or need different way to do this (not yet implemented in the rt2800 driver). Trying to do run rt2800_get_gain_calibration_delta() when this is not appropriate on particular chip gives bogus result of TX power and can make connection unstable. This is follow up to commit 8c8d2017ba25c510ddf093419048460db1109bc4 "rt2800: fix RT5390 & RT3290 TX power settings regression". On that commit we avoid setting BBP_R1 register, but the real problem is wrong temperature compensation calculation. Reported-and-tested-by: Ronald Wahl <ronald.wahl@raritan.com> Debugged-by: Ronald Wahl <ronald.wahl@raritan.com> Cc: Mike Romberg <mike-romberg@comcast.net> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01wil6210: Fix potential memory leaks on error pathsLino Sanfilippo
Fix missing memory deallocation on error paths in wil_write_file_wmi() and wil_write_file_txmgmt(). Reported-by: Ahmed Tamrawi <ahmedtamrawi@gmail.com> Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01Merge branch 'for-linville' of git://github.com/kvalo/athJohn W. Linville
2014-12-01Merge branch 'for-upstream' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
2014-12-01HID: make hid_report_len as a static inline function in hid.hMathieu Magnaudet
In several hid drivers it is necessary to calculate the length of an hid_report. This patch exports the existing static function hid_report_len of hid-core.c as an inline function in hid.h Signed-off-by: Mathieu Magnaudet <mathieu.magnaudet@enac.fr> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-01rtlwifi: rtl8192ce: Fix missing interrupt ready flagLarry Finger
Proper operation with the rewritten PCI mini driver requires that a flag be set when interrupts are enabled. This flag was missed. This patch is one of three needed to fix the kernel regression reported at https://bugzilla.kernel.org/show_bug.cgi?id=88951. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-by: Catalin Iacob <iacobcatalin@gmail.com> Tested-by: Catalin Iacob <iacobcatalin@gmail.com> Cc: Catalin Iacob <iacobcatalin@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01rtlwifi: rtl8192ce: Fix kernel crashes due to missing callback entryLarry Finger
In the major update of the rtlwifi-family of drivers, one of the callback entries was missed, which leads to memory corruption. Unfortunately, this corruption never caused a kernel oops, but showed up in other parts of the system. This patch is one of three needed to fix the kernel regression reported at https://bugzilla.kernel.org/show_bug.cgi?id=88951. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-by: Catalin Iacob <iacobcatalin@gmail.com> Tested-by: Catalin Iacob <iacobcatalin@gmail.com> Cc: Catalin Iacob <iacobcatalin@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01rtlwifi: rtl8192ce: Fix editing error that causes silent memory corruptionLarry Finger
In the major update of the rtlwifi-family of drivers, there was an editing mistake. Unfortunately, this particular error leads to memory corruption that silently leads to failure of the system. This patch is one of three needed to fix the kernel regression reported at https://bugzilla.kernel.org/show_bug.cgi?id=88951. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-by: Catalin Iacob <iacobcatalin@gmail.com> Tested-by: Catalin Iacob <iacobcatalin@gmail.com> Cc: Catalin Iacob <iacobcatalin@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-01of: Rename "poweroff-source" property to "system-power-controller"Romain Perier
It reverts commit a4b4e0461ec5 ("of: Add standard property for poweroff capability"). As discussed on the mailing list, it makes more sense to rename back to the old established property name, without the vendor prefix. Problem being that the word "source" usually tends to be used for inputs and that is out of control of the OS. The poweroff capability is an output which simply turns the system-power off. Also, this property might be used by drivers which power-off the system and power back on subsequent RTC alarms. This seems to suggest to remove "poweroff" from the property name and to choose "system-power-controller" as the more generic name. This patchs adds the required renaming changes and defines an helper function which checks if this property is set. Signed-off-by: Romain Perier <romain.perier@gmail.com> Acked-by: Grant Likely <grant.likely@linaro.org> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-01spi/txx9: Deletion of an unnecessary check before the function call ↵Markus Elfring
"clk_disable" The clk_disable() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-01mtd: spi-nor: allow NULL as chip name and try to auto detect itRafał Miłecki
This will allow spi-nor users to plainly use JEDEC to detect flash chip. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-12-01[media] v4l2-ioctl.c: log the new ycbcr_enc and quantization fieldsHans Verkuil
Log the new ycbcr_enc and quantization fields. Note that it now also logs the flags field for the multiplanar buffer type. This was forgotten when the flags field was added. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-01dma-mapping: detect and configure IOMMU in of_dma_configureWill Deacon
This patch extends of_dma_configure so that it sets up the IOMMU for a device, as well as the coherent/non-coherent DMA mapping ops. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-12-01iommu: fix initialization without 'add_device' callbackMarek Szyprowski
IOMMU drivers can be initialized from of_iommu helpers. Such drivers don't need to provide device_add callbacks to operate properly, so there is no need to fail initialization if the callback is missing. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-12-01iommu: provide helper function to configure an IOMMU for an of masterWill Deacon
The generic IOMMU device-tree bindings can be used to add arbitrary OF masters to an IOMMU with a compliant binding. This patch introduces of_iommu_configure, which does exactly that. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Joerg Roedel <jroedel@suse.de> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-12-01dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_opsWill Deacon
set_arch_dma_coherent_ops is called from of_dma_configure in order to swizzle the architectural dma-mapping functions over to a cache-coherent implementation. This is currently implemented only for ARM. In anticipation of re-using this mechanism for IOMMU-backed dma-mapping ops too, this patch replaces the function with a broader arch_setup_dma_ops callback which will be extended in future. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-12-01iommu: provide early initialisation hook for IOMMU driversWill Deacon
IOMMU drivers must be initialised before any of their upstream devices, otherwise the relevant iommu_ops won't be configured for the bus in question. To solve this, a number of IOMMU drivers use initcalls to initialise the driver before anything has a chance to be probed. Whilst this solves the immediate problem, it leaves the job of probing the IOMMU completely separate from the iommu_ops to configure the IOMMU, which are called on a per-bus basis and require the driver to figure out exactly which instance of the IOMMU is being requested. In particular, the add_device callback simply passes a struct device to the driver, which then has to parse firmware tables or probe buses to identify the relevant IOMMU instance. This patch takes the first step in addressing this problem by adding an early initialisation pass for IOMMU drivers, giving them the ability to store some per-instance data in their iommu_ops structure and store that in their of_node. This can later be used when parsing OF masters to identify the IOMMU instance in question. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Joerg Roedel <jroedel@suse.de> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-12-01dm space map metadata: fix sm_bootstrap_get_nr_blocks()Dan Carpenter
This function isn't right and it causes a static checker warning: drivers/md/dm-thin.c:3016 maybe_resize_data_dev() error: potentially using uninitialized 'sb_data_size'. It should set "*count" and return zero on success the same as the sm_metadata_get_nr_blocks() function does earlier. Fixes: 3241b1d3e0aa ('dm: add persistent data library') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-01dm bufio: fix memleak when using a dm_buffer's inline bioDarrick J. Wong
When dm-bufio sets out to use the bio built into a struct dm_buffer to issue an IO, it needs to call bio_reset after it's done with the bio so that we can free things attached to the bio such as the integrity payload. Therefore, inject our own endio callback to take care of the bio_reset after calling submit_io's end_io callback. Test case: 1. modprobe scsi_debug delay=0 dif=1 dix=199 ato=1 dev_size_mb=300 2. Set up a dm-bufio client, e.g. dm-verity, on the scsi_debug device 3. Repeatedly read metadata and watch kmalloc-192 leak! Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2014-12-01dm cache: fix spurious cell_defer when dealing with partial block at end of ↵Joe Thornber
device We never bother caching a partial block that is at the back end of the origin device. No cell ever gets locked, but the calling code was assuming it was and trying to release it. Now the code only releases if the cell has been set to a non NULL value. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2014-12-01dm cache: dirty flag was mistakenly being cleared when promoting via overwriteJoe Thornber
If the incoming bio is a WRITE and completely covers a block then we don't bother to do any copying for a promotion operation. Once this is done the cache block and origin block will be different, so we need to set it to 'dirty'. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2014-12-01dm cache: only use overwrite optimisation for promotion when in writeback modeJoe Thornber
Overwrite causes the cache block and origin blocks to diverge, which is only allowed in writeback mode. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2014-12-01dm cache: discard block size must be a multiple of cache block sizeJoe Thornber
Otherwise the cache blocks may span two discard blocks, which we don't handle when doing the discard lookup. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-01dm cache: fix a harmless race when working out if a block is discardedJoe Thornber
It is more correct to hold the cell before checking the discard state. These flags are only used as hints to the policy so this change will have negligable effect. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-01dm cache: when reloading a discard bitset allow for a different discard ↵Joe Thornber
block size The discard block size can change if the origin changes size or if an old DM cache is upgraded from using a discard block size that was equal to cache block size. To fix this an extent of discarded blocks is established for the purpose of translating the old discard block size to the new in-core discard block size and set bits. The old (potentially huge) discard bitset is left ondisk until it is re-written using the new in-core information on the next successful DM cache shutdown. Fixes: 7ae34e777896 ("dm cache: improve discard support") Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-01dm cache: fix some issues with the new discard range supportJoe Thornber
Commit 7ae34e777 ("dm cache: improve discard support") needed to also: - discontinue having DM core split the discard bios on cache block boundaries - calculate the cache's discard_nr_blocks relative to the determined discard_block_size rather than using oblock_to_dblock() Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-01dm array: if resizing the array is a noop set the new root to the old oneJoe Thornber
This could've been quite bad (to return success but not update the new root to point at the old) but in practice the only known consumer of the dm array code is the DM cache target. And the DM cache target passes in the same old root to array_resize() anyway. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2014-12-01drm/edid: new drm_edid_block_checksum helper function V3Stefan Brüns
The function will also be used by a later patch, so factor it out. V2: make raw_edid const, define/declare before first use V3: fix erroneuos removal of csum variable Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-12-01drm/edid: shorten log output in case of all zeroes edid blockStefan Brüns
There is no need to dump the whole EDID block in case it contains no information. Just print a single line stating the block is empty instead of 8 lines containing only zeroes. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-12-01drm/edid: move drm_edid_is_zero to top, make edid argument constStefan Brüns
drm_edid_is_zero will be used by drm_edid_block valid, move it up. raw_edid argument can be const. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-12-01mfd: atmel-hlcdc: Add Kconfig option description and nameBoris Brezillon
The MFD_ATMEL_HLCDC was first intended to be selected by its sub-devices but these sub-devices now depends on this option, we thus need to add a name and a description so that users can see it. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-12-01iwlwifi: pcie: add fh registers to dump dataLiad Kaufman
Adds all FH registers between FH_MEM_UPPER_BOUND and FH_MEM_LOWER_BOUND (which should be readable to the driver) to the dump data when it is collected. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01iwlwifi: mvm: support ucode load for family_8000 B0 onlyEran Harary
The ucode load flow changed for B0 hardware step. Change the code accordingly. Signed-off-by: Eran Harary <eran.harary@intel.com> Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01iwlwifi: mvm: remove a dangling line of documentationDavid Spinadel
Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-12-01iwlwifi: pcie: claim ownership on the device after stop_device()Emmanuel Grumbach
Not doing so would allow other possible users of the device to take ownership and prevent normal WiFi operation. This fixes the second part of: https://bugzilla.kernel.org/show_bug.cgi?id=87191 Reviewed-by: Moshe Harel <moshe.harel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>