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* net: skfb: remove obsolete -I cflagArnd Bergmann2016-06-151-1/+1
| | | | | | | | | | | | | | | The skfp driver has been moved to drivers/net/fddi/skfp a long time ago, but we still attempt to include headers from the old location, which causes a warning when building with W=1: cc1: error: /git/arm-soc/drivers/net/skfp: No such file or directory [-Werror=missing-include-dirs] cc1: error: drivers/net/skfp: No such file or directory [-Werror=missing-include-dirs] Clearly this include directive is not needed any more, so we can just remove it now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: fix build warningSudip Mukherjee2016-01-251-4/+4
| | | | | | | | | | | | | | | We are getting many build warnings about: 'bar_start' may be used uninitialized and 'bar_len' may be used uninitialized They are not actually uninitialized as dfx_get_bars() will initialize them properly. But still lets have them initialized just to satisfy the compiler (gcc 4.8.2). Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Acked-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/fddi: remove HWM_REVERSE() macroyalin wang2015-08-131-9/+0
| | | | | | | HWM_REVERSE() macro is unused, remove it. Signed-off-by: yalin wang <yalin.wang2010@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* fddi: print an address with %p format specifier rather than %xColin Ian King2015-06-071-1/+1
| | | | | | | | The debug is printing the struct smt_header * address using the %x format specifier. Fix it to use %p instead. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fddi: skfp: smt.c: Remove unused functionRickard Strandqvist2015-01-021-12/+0
| | | | | | | | | Remove the function smt_ifconfig() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: Clean up DEFEA resource managementMaciej W. Rozycki2014-11-212-37/+80
| | | | | | | | | | | Reserve DEFEA resources according to actual use. There are three regions, for the ESIC ASIC's CSRs, for the discrete Burst Holdoff register, and for the PDQ ASIC's CSRs. The latter is mapped in the memory or port I/O address space depending on configuration. The two formers are hardwired and always mapped in the port I/O address space. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: Disable DEFEA's ESIC I/O decoding on shutdownMaciej W. Rozycki2014-11-211-0/+6
| | | | | | | | | | Make sure the option card does not respond after shutdown by disabling it via ESIC's Expansion Board Control register. Also disable memory and port I/O decoders, the latter in particular to disable slot-specific I/O decoding that otherwise remains active even in the board is disabled. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: Correct DEFEA's ESIC MMIO decodingMaciej W. Rozycki2014-11-212-24/+39
| | | | | | | | | | | | | | | Use ESIC's memory area 1 (MEMCS1) and its Memory Address High Compare and Memory Address Low Compare registers to set up the MMIO range for decoding accesses to PDQ ASIC registers. Previously the PDQ ASIC was thought to be addressable with the memory area 0 (MEMCS0) and its Memory Address Compare and Memory Address Mask registers. The MMIO range allocated for the option card is preset via ECU (EISA Configuration Utility) and can be disabled, so handle such a case gracefully too. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: Fix DEFPA enable error propagationMaciej W. Rozycki2014-11-211-4/+7
| | | | | | | | | Correctly propagate the error code from `pci_enable_device' if non zero. Currently a failure of this function is correctly recognized and device initialization abandoned, however a successful completion code returned. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: DEFEA's ESIC port I/O decoding cleanupMaciej W. Rozycki2014-09-282-20/+32
| | | | | | | | | | | Use the slot-specific I/O range for decoding accesses to PDQ ASIC registers (IOCS0) and the discrete Burst Holdoff register (IOCS1) as per the "HD64981F EISA Slave Interface Controller (ESIC)" datasheet. Use disjoint decode ranges now that the assignment of chip selects is known. Update the span of the port I/O resource requested accordingly. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: DEFEA's Burst Holdoff register initialization fixMaciej W. Rozycki2014-09-281-2/+2
| | | | | | | | Use the mask rather than bit number macro to initialize the chip select control bit for PDQ register space decoding in the Burst Holdoff register. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* defxx: Correct DEFEA's ESIC port I/O accessesMaciej W. Rozycki2014-09-281-15/+15
| | | | | | | Reverse the order of arguments to `outb', data to write comes first. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net/fddi/skfp/h/skfbi.h: Remove useless PCI_BASE_2ND macrosChen Gang2014-09-051-5/+0
| | | | | | | | | | | | | | | | | | | | | | They are use less, and may generate compiling warnings, so remove them (microblaze, arc, arm64, and unicore32 have already defined PCI_IOBASE). The related warnings (with allmodconfig under microblaze): CC [M] drivers/net/fddi/skfp/skfddi.o In file included from drivers/net/fddi/skfp/skfddi.c:95:0: drivers/net/fddi/skfp/h/skfbi.h:151:0: warning: "PCI_IOBASE" redefined #define PCI_IOBASE 0xffffff00L /* Bit 31..8: I/O Base address */ ^ In file included from include/linux/io.h:22:0, from include/linux/pci.h:31, from drivers/net/fddi/skfp/skfddi.c:82: ./arch/microblaze/include/asm/io.h:33:0: note: this is the location of the previous definition #define PCI_IOBASE ((void __iomem *)_IO_BASE) ^ Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* PCI: Remove DEFINE_PCI_DEVICE_TABLE macro useBenoit Taine2014-08-122-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to meet kernel coding style guidelines. This issue was reported by checkpatch. A simplified version of the semantic patch that makes this change is as follows (http://coccinelle.lip6.fr/): // <smpl> @@ identifier i; declarer name DEFINE_PCI_DEVICE_TABLE; initializer z; @@ - DEFINE_PCI_DEVICE_TABLE(i) + const struct pci_device_id i[] = z; // </smpl> [bhelgaas: add semantic patch] Signed-off-by: Benoit Taine <benoit.taine@lip6.fr> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-07-161-10/+7
|\ | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * defxx: Fix !DYNAMIC_BUFFERS compilation warningsMaciej W. Rozycki2014-07-021-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes compilation warnings: drivers/net/fddi/defxx.c:294: warning: 'dfx_rcv_flush' declared inline after being called drivers/net/fddi/defxx.c:294: warning: previous declaration of 'dfx_rcv_flush' was here drivers/net/fddi/defxx.c:2854: warning: 'my_skb_align' defined but not used triggered when the driver is built with DYNAMIC_BUFFERS undefined. Code tested to work just fine with these changes and a few DEFPA and DEFTA boards. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * defxx: Remove an incorrectly inverted preprocessor conditionalMaciej W. Rozycki2014-07-021-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RX handler of the driver has two paths switched between, depending on the size of the frame received, as determined by SKBUFF_RX_COPYBREAK. When a small frame is received, a new skb allocated has data space large enough to hold the incoming frame only, and data is copied there from the original skb whose buffer is returned to the DMA RX ring; in that case `rx_in_place' is 0. When a large frame is received, a new skb allocated has data space large enough to hold the largest frame possible, including the overhead for alignment, the receive status and padding, over 4.5kiB overall, and its buffer is placed on the DMA RX ring while the original buffer is passed up to the network stack avoiding the need to copy data; in that case `rx_in_place' is 1. However the latter scenario is only possible when dynamic buffers are used, as determined by DYNAMIC_BUFFERS, because otherwise the buffers used for the DMA RX ring are fixed at the time the interface is brought up. That leads to an observation that the preprocessor conditional around the `rx_in_place' check is inverted, the check only really matters when dynamic buffers are in use. It has gone unnoticed for many years since support for using dynamic buffers on the DMA RX ring was introduced in 2.1.40 -- because the only problem that results is in the case where `rx_in_place' is 1 frame data received is unnecessarily copied to the newly-allocated buffer, before the buffer placed on the the DMA receive RX and its contents ignored. Therefore the only symptom is some performance loss. Rather than flipping the condition though I decided to discard the conditional altogether -- in the case of static buffers `rx_in_place' is always 0 so GCC will optimise the C conditional away instead. Tested on a few DEFPA and DEFTA boards successfully using both small and large frames, both with DYNAMIC_BUFFERS defined and with the macro undefined. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | defxx: Fix issues with debug printk callsMaciej W. Rozycki2014-07-082-12/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes issues with debug printk calls across the driver, normally disabled; first compilation errors: drivers/net/fddi/defxx.c:676:1: error: pasting "(" and ""In dfx_bus_init...\n"" does not give a valid preprocessing token drivers/net/fddi/defxx.c:820:1: error: pasting "(" and ""In dfx_bus_uninit...\n"" does not give a valid preprocessing token and so on, and then warnings: drivers/net/fddi/defxx.c: In function 'dfx_driver_init': drivers/net/fddi/defxx.c:1132: warning: format '%0X' expects type 'unsigned int', but argument 4 has type 'dma_addr_t' drivers/net/fddi/defxx.c:1132: warning: format '%0X' expects type 'unsigned int', but argument 4 has type 'dma_addr_t' etc. Additionally casts are removed from virtual addresses and %p used. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | defxx: Add missing DMA synchronisation callsMaciej W. Rozycki2014-07-081-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds DMA synchronisation calls needed in the receive path: 1. To retrieve the Receive Status word that is prepended by the PDQ DMA engine in the receive buffer, and provides information about the frame received, including its size and any errors. 2. To make data received available for copying in the small-frame case (size <= SKBUFF_RX_COPYBREAK) where the original DMA buffer will be returned to the receive descriptor ring and therefore its mapping retained. With DMA mapping error handling in place, added by the other patch, this may now also trigger where an attempt to map a newly allocated buffer for DMA has failed. In that case data from the original buffer will be copied out and the buffer returned to the DMA descriptor ring. These calls may do nothing when data is in the host DMA addressing range of the FDDI interface, such as always on 32-bit systems, however their absence makes frame reception stop functioning reliably on systems that have memory beyond the low 4GB of the address space. Reported-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Tested-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | defxx: Handle DMA mapping errorsMaciej W. Rozycki2014-07-081-26/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds error handling for DMA mapping requests; I think there isn't much else to say about it. A good side-effect is the mapping in the transmit path is now made with the board lock released. Also if DMA mapping fails for a newly allocated receive buffer, then data from the old buffer will be copied out (as is presently done for small frames only whose size does not exceed SKBUFF_RX_COPYBREAK) and the original buffer returned, with its mapping unchanged, to the DMA descriptor ring. Reported-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Tested-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | defxx: Use netdev_alloc_skb consistentlyMaciej W. Rozycki2014-07-081-2/+6
| | | | | | | | | | | | | | | | | | | | | | Switch the two remaining places across the driver that use dev_alloc_skb to netdev_alloc_skb. Another place has already been converted to use __netdev_alloc_skb, no idea why these two have been left behind. Reported-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Tested-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | defxx: Discard DMA maps on buffer deallocationMaciej W. Rozycki2014-07-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prearranged receive DMA bounce buffer mappings are not released in the card reboot/shutdown path. That does not affect frame reception, but probably explains the random segmentation fault I observed the other day on interface shutdown. Card is rebooted as required by the spec in the process of ring fault recovery when a PC Trace signal has been received. This change fixes the problem in an obvious manner. Reported-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Tested-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | defxx: Correct the receive DMA map sizeMaciej W. Rozycki2014-07-081-3/+3
|/ | | | | | | | | | | | | | | | | | | | Receive DMA maps are oversized, they include EISA legacy 128-byte alignment padding in size calculation whereas this padding is never used for data. Worse yet, if the skb's data area has been realigned indeed, then data beyond the end of the buffer will be synchronised from the receive DMA bounce buffer, possibly corrupting data structures residing in memory beyond the actual end of this data buffer. Therefore switch to using PI_RCV_DATA_K_SIZE_MAX rather than NEW_SKB_SIZE in DMA mapping, the value the former macro expands to is written to the receive ring DMA descriptor of the PDQ DMA chip and determines the maximum amount of data PDQ will ever transfer to the corresponding data buffer, including all headers and padding. Reported-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Tested-by: Robert Coerver <Robert.Coerver@ll.mit.edu> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: delete non-required instances of include <linux/init.h>Paul Gortmaker2014-01-162-2/+0
| | | | | | | | | | | | | None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. This covers everything under drivers/net except for wireless, which has been submitted separately. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fddi: slight optimization of addr comparedingtianhong2013-12-311-1/+2
| | | | | | | | | Use possibly more efficient ether_addr_equal to instead of memcmp. Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* fddi: cleanup unsigned to unsigned int/shorttanxiaojun2013-12-164-73/+73
| | | | | | | | Use "unsigned int/short" instead of "unsigned", and change the type of iteration variable "i" to "unsigned int". Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fddi: remove unnecessary pci_set_drvdata()Jingoo Han2013-12-101-1/+0
| | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/fddi: Replace local macro with PCI standard macroYijing Wang2013-12-061-13/+7
| | | | | | | | | Replace local macro DFX_BUS_PCI() with PCI standard macro dev_is_pci(). Acked-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net:drivers/net: Miscellaneous conversions to ETH_ALENJoe Perches2013-10-022-4/+4
| | | | | | | | | | | | Convert the memset/memcpy uses of 6 to ETH_ALEN where appropriate. Also convert some struct definitions and u8 array declarations of [6] to ETH_ALEN. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* fddi/skfp: Remove extern from function prototypesJoe Perches2013-09-241-14/+14
| | | | | | | | | | | | There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com>
* drivers:net: Convert dma_alloc_coherent(...__GFP_ZERO) to dma_zalloc_coherentJoe Perches2013-08-291-3/+3
| | | | | | | | | | | | | | | | | | | | | __GFP_ZERO is an uncommon flag and perhaps is better not used. static inline dma_zalloc_coherent exists so convert the uses of dma_alloc_coherent with __GFP_ZERO to the more common kernel style with zalloc. Remove memset from the static inline dma_zalloc_coherent and add just one use of __GFP_ZERO instead. Trivially reduces the size of the existing uses of dma_zalloc_coherent. Realign arguments as appropriate. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/fddi/skfp/skfddi: Use module_pci_driver to register driverPeter Hüwe2013-05-221-12/+1
| | | | | | | | Removing some boilerplate by using module_pci_driver instead of calling register and unregister in the otherwise empty init/exit functions. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0)Joe Perches2013-03-171-2/+1
| | | | | | | | | | | | | | | Reduce the number of calls required to alloc a zeroed block of memory. Trivially reduces overall object size. Other changes around these removals o Neaten call argument alignment o Remove an unnecessary OOM message after dma_alloc_coherent failure o Remove unnecessary gfp_t stack variable Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers:net: Remove dma_alloc_coherent OOM messagesJoe Perches2013-03-151-4/+2
| | | | | | | | | | | | | | | | | I believe these error messages are already logged on allocation failure by warn_alloc_failed and so get a dump_stack on OOM. Remove the unnecessary additional error logging. Around these deletions: o Alignment neatening. o Remove unnecessary casts of dma_alloc_coherent. o Hoist assigns from ifs. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: fix up function prototypes after __dev* removalsGreg Kroah-Hartman2012-12-071-6/+4
| | | | | | | | | | | | The __dev* removal patches for the network drivers ended up messing up the function prototypes for a bunch of drivers. This patch fixes all of them back up to be properly aligned. Bonus is that this almost removes 100 lines of code, always a nice surprise. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* fddi: remove __dev* attributesBill Pemberton2012-12-032-22/+22
| | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fddi: 64 bit bug in smt_add_para()Dan Carpenter2012-09-011-1/+1
| | | | | | | | | The intent was to set 4 bytes of data so that's why the sp_len is set to 4 on the next line. The cast to u_long pointer clears 8 bytes on 64 bit arches. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@tempietto.lan>
* drivers: net: Remove casts to same typeJoe Perches2012-06-062-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force, __iomem and __user. @@ type T; T *p; @@ - (T *)p + p Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* skfp: Fix SysKonnect FDDI driver compile issuesJeff Kirsher2011-08-277-17/+17
| | | | | | | | | | | | | | | After moving the skfp driver, issues with the #include pathing to their locel headers was somehow exposed. Several headers had the incorrect path, so they were not able to be found during compile time. This patch fixes up the path issues to the local headers that need to be included. CC: "Maciej W. Rozycki" <macro@linux-mips.org> CC: Christoph Goos <cgoos@syskonnect.de> CC: <linux@syskonnect.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* fddi: Move the FDDI driversJeff Kirsher2011-08-2741-0/+28596
Move the FDDI drivers into drivers/net/fddi/ and make the necessary Kconfig and Makefile changes. CC: "Maciej W. Rozycki" <macro@linux-mips.org> CC: Christoph Goos <cgoos@syskonnect.de> CC: <linux@syskonnect.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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