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2021-02-04Merge tag 'misc-habanalabs-next-2021-01-27' of ↵Greg Kroah-Hartman31-617/+1719
https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next Oded writes: This tag contains habanalabs driver changes for v5.12: - Add feature called "staged command submissions". In this feature, the driver allows the user to submit multiple command submissions that describe a single pass on the deep learning graph. The driver tracks the completion of the entire pass by the last stage CS. - Update code to support the latest firmware image - Optimizations and improvements to MMU code: - Support page size that is not power-of-2 - Make the locks scheme simpler - mmap areas in device configuration space to userspace - Security fixes: - Make ETR non-secured - Remove access to kernel memory through debug-fs interface - Remove access through PCI bar to SyncManager register block in Gaudi - Many small bug fixes * tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (41 commits) habanalabs: update to latest hl_boot_if.h spec from F/W habanalabs/gaudi: unmask HBM interrupts after handling habanalabs: update SyncManager interrupt handling habanalabs: fix ETR security issue habanalabs: staged submission support habanalabs: modify device_idle interface habanalabs: add CS completion and timeout properties habanalabs: add new mem ioctl op for mapping hw blocks habanalabs: fix MMU debugfs related nodes habanalabs: add user available interrupt to hw_ip habanalabs: always try to use the hint address CREDITS: update email address and home address habanalabs: update email address in sysfs/debugfs docs habanalabs: add security violations dump to debugfs habanalabs: ignore F/W BMC errors in case no BMC present habanalabs/gaudi: print sync manager SEI interrupt info habanalabs: Use 'dma_set_mask_and_coherent()' habanalabs/gaudi: remove PCI access to SM block habanalabs: add driver support for internal cb scheduling habanalabs: increment ctx ref from within a cs allocation ...
2021-02-04misc: bcm-vk: only support ttyVK if CONFIG_TTY is setScott Branden5-8/+61
Correct compile issue if CONFIG_TTY is not set by only adding ttyVK devices if CONFIG_BCM_VK_TTY is set. Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210203223826.21674-1-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-04misc: bcm-vk: Fix a couple error codes in probe()Dan Carpenter1-1/+3
These errors should return negative error codes instead of returning success. Fixes: 064ffc7c3939 ("misc: bcm-vk: add autoload support") Fixes: 522f692686a7 ("misc: bcm-vk: add Broadcom VK driver") Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YBpyEbmz00rjvT9S@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03misc: rtsx: Remove unneeded return variableYang Li1-2/+1
This patch removes unneeded return variables, using only '0' instead. It fixes the following warning detected by coccinelle: ./drivers/misc/cardreader/rtsx_pcr.c:1808:5-8: Unneeded variable: "ret". Return "0" on line 1833. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1612164640-84541-1-git-send-email-yang.lee@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03misc: bcm-vk: unlock on error in bcm_to_h_msg_dequeue()Dan Carpenter1-1/+2
Unlock before returning on this error path. Fixes: 111d746bb476 ("misc: bcm-vk: add VK messaging support") Acked-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YBfyb+jU5lDUe+5g@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-31cxl: Reduce scope for the variable “mm” in cxllib_get_PE_attributes()Markus Elfring1-3/+1
A local variable was used only within an if branch. Thus move the definition for the variable “mm” into the corresponding code block. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/5cee2b25-71e0-15aa-fba6-12211b8308aa@web.de
2021-01-30 ocxl: use DEFINE_MUTEX() for mutex lockZheng Yongjun1-2/+1
mutex lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201224132446.31286-1-zhengyongjun3@huawei.com
2021-01-29mei: me: add adler lake point LP DIDAlexander Usyskin2-0/+2
Add Adler Lake LP device id. Cc: <stable@vger.kernel.org> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-7-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29mei: me: add adler lake point S DIDAlexander Usyskin2-0/+4
Add Adler Lake S device id. Cc: <stable@vger.kernel.org> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-6-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29mei: me: emmitsburg workstation DIDTomas Winkler2-0/+4
Add Emmitsburg workstation DID. Cc: <stable@vger.kernel.org> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-5-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29mei: hbm: drop hbm responses on shutdownAlexander Usyskin1-2/+24
Ignore and drop HBM responses from init phase in shutdown phase. Fixes stall if driver starting to stop in the middle of link init. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-4-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29mei: hbm: call mei_set_devstate() on hbm stop responseAlexander Usyskin1-1/+1
Use mei_set_devstate() wrapper upon hbm stop command response, to trigger sysfs event. Fixes: 43b8a7ed4739 ("mei: expose device state in sysfs") Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-3-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29mei: document that mei_msg_hdr_init returns ERR_PTRTomas Winkler1-1/+1
Document that mei_msg_hdr_init returns ERR_PTR. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-2-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29mei: fix transfer over dma with extended headerAlexander Usyskin1-3/+30
The size in header field for packet transferred over DMA includes size of the extended header. Include extended header in size check. Add size and sanity checks on extended header. Cc: <stable@vger.kernel.org> # v5.10+ Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29misc: bcm-vk: fix set_q_num API precedence issueDesmond Yan1-2/+8
Change set_q_num API to use if-else to make it more explicit, and avoid a precedence rule issue. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210129060403.14801-1-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-29Merge tag 'drm-intel-next-2021-01-27' of ↵Dave Airlie1-2/+1
git://anongit.freedesktop.org/drm/drm-intel into drm-next - HDCP 2.2 and HDCP 1.4 Gen12 DP MST support (Anshuman) - Fix DP vswing settings and handling (Imre, Ville) - Various display code clean-up (Jani, Ville) - Various display refactoring, including split out of pps, aux, and fdi (Ja\ ni, Dave) - Add DG1 missing workarounds (Jose) - Fix display color conversion (Chris, Ville) - Try to guess PCH type even without ISA bridge (Zhenyu) - More backlight refactor (Lyude) - Support two CSC module on gen11 and later (Lee) - Async flips for all ilk+ platforms (Ville) - Clear color support for TGL (RK) - Add a helper to read data from a GEM object page (Imre) - VRR/Adaptive Sync Enabling on DP/eDP for TGL+ (Manasi, Ville Aditya) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210127140822.GA711686@intel.com
2021-01-27habanalabs: update to latest hl_boot_if.h spec from F/WOded Gabbay1-1/+7
It adds the definition for indication that the F/W handles HBM ECC events. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/gaudi: unmask HBM interrupts after handlingOded Gabbay1-0/+1
As the driver does with all interrupts, we need to tell F/W to unmask the HBM interrupts after the driver handled them. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: update SyncManager interrupt handlingOded Gabbay2-9/+16
The firmware provides more information about SyncManager events. Adjust the code to the latest firmware interface file. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: fix ETR security issueOhad Sharabi4-7/+32
ETR should always be non-secured as it is used by the users to record profiling/trace data. This patch fixes the configuration to match those requirements. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: staged submission supportOfir Bitton4-24/+227
We introduce a new mechanism named Staged Submission. This mechanism allows the user to send a whole CS in pieces. Each CS will not require completion rather than the last CS. Timeout timer will be triggered upon reception of the first CS in group. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: modify device_idle interfaceOhad Sharabi6-41/+37
Currently this API uses single 64 bits mask for engines idle indication. Recently, it was observed that more bits are needed for some ASICs. This patch modifies the use of the idle mask and the idle_extensions mask. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: add CS completion and timeout propertiesOfir Bitton3-26/+117
In order to support staged submission feature, we need to distinguish on which command submission we want to receive timeout and for which we want to receive completion. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: add new mem ioctl op for mapping hw blocksOfir Bitton5-8/+137
For future ASIC support the driver allows user to map certain regions in the device's configuration space for direct access from userspace. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: fix MMU debugfs related nodesfarah kassabri5-22/+93
In mmu debugfs node show un-scrambled physical addresses. before read/write through data nodes, need to unscramble the physical address before using it for pci transaction. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: add user available interrupt to hw_ipOfir Bitton4-0/+9
In order to support completions that arrive directly to the user, the driver needs to supply the user with the first available msix interrupt available. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: always try to use the hint addressfarah kassabri1-102/+37
Currently hint address is ignored in case va block page size is not power of 2. We need to support th user hint address also in this case, but only if the hint address is aligned to page size. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: add security violations dump to debugfsOfir Bitton8-2/+40
In order to improve driver security debuggability, we add security violations dump to debugfs. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: ignore F/W BMC errors in case no BMC presentOfir Bitton1-3/+9
In order to support operation mode in which BMC is not active, driver must not take BMC errors into consideration. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/gaudi: print sync manager SEI interrupt infoOfir Bitton3-0/+52
Driver must print sync manager SEI information upon receiving interrupt from FW. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: Use 'dma_set_mask_and_coherent()'Christophe JAILLET1-36/+7
Axe 'hl_pci_set_dma_mask()' and replace it with an equivalent 'dma_set_mask_and_coherent()' call. This makes the code a bit less verbose. It also removes an erroneous comment, because 'hl_pci_set_dma_mask()' does not try to use a fall-back value. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/gaudi: remove PCI access to SM blockOfir Bitton3-26/+227
Due to HW limitation we must remove all direct access to SM registers, in order to do that we will access SM registers using the HW QMANS. When possible and no user context is present, we can directly access the HW QMANS. Whenever there is an active user, driver will prepare a pending command buffer list which will be sent upon user submissions. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: add driver support for internal cb schedulingOfir Bitton3-0/+173
In order to support scnenarios in which driver needs access to HW components but it cannot access them directly, we add support for scheduling command buffers internally. These command buffers will be transmitted upon next user command submission context. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: increment ctx ref from within a cs allocationOfir Bitton1-10/+5
A CS must increment the relevant context reference count. We want to increment the reference inside the CS allocation function as opposed for today where we increment it outside. This is logical since we want to avoid explicitly incrementing the context every time we call the CS allocate function. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: separate common code to dedicated foldersOfir Bitton6-7/+17
We separate some of the common code source files to different folders for a better maintainability and testability. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: read device boot errors after cpucp is upOfir Bitton5-56/+80
Boot cpu can report errors in various boot stages. Current implementaion does not take into consideration errors reported in late stages, hence we will check for errors at the most late stage when fetching cpucp information. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: report correct dram size in info ioctlOfir Bitton1-1/+9
In case MMU is enabled, we must take MMU page size into consideration when reporting dram size to the user. This is because the MMU page size can be a value which is NOT a power-of-2 value. As a result, the total DRAM size (which is always a power-of-2 value) needed to be rounded-down. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: support non power-of-2 DRAM phys page sizesMoti Haimovski6-44/+213
DRAM physical page sizes depend of the amount of HBMs available in the device. this number is device-dependent and may also be subject to binning when one or more of the DRAM controllers are found to to be faulty. Such a configuration may lead to partitioning the DRAM to non-power-of-2 pages. To support this feature we also need to add infrastructure of address scarmbling. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: remove access to kernel memory using debugfsOfir Bitton2-20/+0
Accessing kernel allocated memory through debugfs should not be allowed as it introduces a security vulnerability. We remove the option to read/write kernel memory for all asics. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/gaudi: set uninitialized symbolOfir Bitton1-1/+1
Initialize local variable that is returned by the function, in case it is never assigned. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: return dram virtual address in info ioctlAlon Mizrahi1-1/+3
When working with DRAM MMU, we should supply the userspace with the virtual start address of the DRAM instead of the physical one. This is because the physical one has no meaning for the user as he only knows the virtual address range. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: update to latest hl_boot_if.hOded Gabbay1-4/+4
Update the latest version of this file that the F/W exports Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: add ASIC property of functional HBMsOded Gabbay1-0/+2
The number of functional HBMs in the same ASIC can be different due to malfunctioning HBM banks. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/gaudi: add debug prints for security statusOfir Bitton1-0/+11
In order to have more information while debugging boot issues, we should print the firmware security status at every boot stage. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: modify memory functions signaturesOmer Shpigelman1-9/+13
For consistency, modify all memory ioctl functions to get the ioctl arguments structure rather than the arguments themselves. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: kernel doc format in memory functionsOmer Shpigelman1-197/+180
Change all memory functions documentation according to kernel doc format. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: replace WARN/WARN_ON with dev_crit in driverAlon Mizrahi7-25/+31
Often WARN is defined in data-centers as BUG and we would like to avoid hanging the entire server on some internal error of the driver (important as it might be). Therefore, use dev_crit instead. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs: report dram_page_size in hw_ip_info ioctlMoti Haimovski1-0/+1
Instead of having it hard-coded as a define, pass it to the user in runtime. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/goya: move mmu_prepare to context initOhad Sharabi1-2/+3
Currently mmu_prepare is located at context switch. Since we support a single context, no reason to reconfigure the MMU registers every context switch. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-01-27habanalabs/gaudi: remove duplicated gaudi packets masksOfir Bitton2-40/+16
As all packets use the same CTL register masks, we remove duplicated masks and use common masks instead. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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