- 12 Jun, 2017 22 commits
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Heiko Carstens authored
When masking an ASCE to get its origin use the corresponding define instead of the unrelated PAGE_MASK. This doesn't fix a bug since both masks are identical. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Harald Freudenberger authored
Added some dbf debug messages on failure of the most important ioctl calls. These messages are only enabled with dbf level 6 (debug) and so do not affect the normal operating mode which uses level 3 (errors and higher). Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Use proper define instead of open-coding the condition code value. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Christian Borntraeger authored
I get number of CPUs - 1 kmemleak hits like unreferenced object 0x37ec6f000 (size 1024): comm "swapper/0", pid 1, jiffies 4294937330 (age 889.690s) hex dump (first 32 bytes): 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace: [<000000000034a848>] kmem_cache_alloc+0x2b8/0x3d0 [<00000000001164de>] __cpu_up+0x456/0x488 [<000000000016f60c>] bringup_cpu+0x4c/0xd0 [<000000000016d5d2>] cpuhp_invoke_callback+0xe2/0x9e8 [<000000000016f3c6>] cpuhp_up_callbacks+0x5e/0x110 [<000000000016f988>] _cpu_up+0xe0/0x158 [<000000000016faf0>] do_cpu_up+0xf0/0x110 [<0000000000dae1ee>] smp_init+0x126/0x130 [<0000000000d9bd04>] kernel_init_freeable+0x174/0x2e0 [<000000000089fc62>] kernel_init+0x2a/0x148 [<00000000008adce2>] kernel_thread_starter+0x6/0xc [<00000000008adcdc>] kernel_thread_starter+0x0/0xc [<ffffffffffffffff>] 0xffffffffffffffff The pointer of this data structure is stored in the prefix page of that CPU together with some extra bits ORed into the the low bits. Mark the data structure as non-leak. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Harald Freudenberger authored
When a out of range domain parameter was given, the init function returned with -EINVAL and the driver was not operational. As the driver is statically build into the kernel and is able to work with multiple domains anyway the init function should continue. Now the user has a chance to write a new default domain value via sysfs attribute file. Also added two new dbf debug messages related to the domain value handling. Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Select statements in Kconfig do not necessarily enable all required dependencies and can lead to broken configs. This is also the case for the "select IUCV" statement within HVC_IUCV: warning: (HVC_IUCV) selects IUCV which has unmet direct dependencies (NET && S390) Just add the missing "depends on NET" to avoid broken configs. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Harald Freudenberger authored
The s390_paes and the s390_aes kernel module used just one config symbol CONFIG_CRYPTO_AES. As paes has a dependency to PKEY and this requires ZCRYPT the aes module also had a dependency to the zcrypt device driver which is not true. Fixed by introducing a new config symbol CONFIG_CRYPTO_PAES which has dependencies to PKEY and ZCRYPT. Removed the dependency for the aes module to ZCRYPT. Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Harald Freudenberger authored
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
The zcrypt code contains a couple of functions which receive a "big_endian" argument. All callers naturally pass "1" for big endian, since s390 is big endian. Therefore get rid of this argument and also get rid of the cpu_to_le()/cpu_to_be() calls. This way we get rid of a couple of sparse warnings: drivers/s390/crypto/zcrypt_cca_key.h:255:34: warning: incorrect type in assignment (different base types) expected unsigned short [unsigned] ulen got restricted __be16 [usertype] <noident> Cc: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
Switch to the improved _install_special_mapping function to install the vdso mapping. This has two advantages, the arch_vma_name function is not needed anymore and the vdso vma still has its name after its memory location has been changed with mremap. Tested-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
The account_system_index_scaled gets two cputime values, a raw value derived from CPU timer deltas and a scaled value. The scaled value is always calculated from the raw value, the code can be simplified by moving the scale_vtime call into account_system_index_scaled. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
I missed at least these two header files where we can make use of the generic ones. vga.h is another one, however that is already addressed by a patch from Jiri Slaby. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Add missing __user annotations to get rid of a couple of sparse warnings. All callers actually pass kernel pointers instead of user space pointers, however the pointers are being used within KERNEL_DS. So everything is fine. Corresponding sparse warnings: drivers/s390/crypto/pkey_api.c:181:41: warning: incorrect type in assignment (different address spaces) expected char [noderef] <asn:1>*request_control_blk_addr got void *<noident> Cc: Harald Freudenberger <freude@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Jan Höppner authored
Dynamic stack allocations are considered bad. Get rid of this one occurrence and use kstrdup() instead. Also, set the return codes so that we have only one exit where we can call kfree(). Signed-off-by: Jan Höppner <hoeppner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Sebastian Ott authored
Exploit multiple hardware contexts (queues) that can process requests in parallel. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Sebastian Ott authored
Drop the tasklet that was used to complete requests in favor of block layer helpers that finish the IO on the CPU that initiated it. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Sebastian Ott authored
Convert scm_blk to use the blk-mq API. This is just a simple conversion since we still use a single queue. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Sebastian Ott authored
Remove CONFIG_SCM_BLOCK_CLUSTER_WRITE and related code. This quirk is no longer needed on current hardware. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Add __rcu annotations so sparse correctly warns only if "slot" gets derefenced without using rcu_dereference(). Right now we get warnings because of the missing annotation: arch/s390/mm/gmap.c:135:17: warning: incorrect type in assignment (different address spaces) arch/s390/mm/gmap.c:135:17: expected void **slot arch/s390/mm/gmap.c:135:17: got void [noderef] <asn:4>** Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
drivers/s390/crypto/pkey_api.c:1197:12: warning: symbol 'pkey_init' was not declared. Should it be static? Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Add missing include statements to make sure that prototypes match implementation. As reported by sparse: arch/s390/crypto/arch_random.c:18:1: warning: symbol 's390_arch_random_available' was not declared. Should it be static? arch/s390/kernel/traps.c:279:13: warning: symbol 'trap_init' was not declared. Should it be static? Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
Add the logic to upgrade the page table for a 64-bit process to five levels. This increases the TASK_SIZE from 8PB to 16EB-4K. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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- 08 Jun, 2017 1 commit
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Martin Schwidefsky authored
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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- 02 Jun, 2017 1 commit
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Harald Freudenberger authored
When the association between a queue device and the driver is released via unbind and later re-associated the queue device was not operational any more. Reason was a wrong administration of the card/queue lists within the ap device driver. This patch introduces revised card/queue list handling within the ap device driver: when an ap device is detected it is initial not added to the card/queue list any more. With driver probe the card device is added to the card list/the queue device is added to the queue list within a card. With driver remove the device is removed from the card/queue list. Additionally there are some situations within the ap device live where the lists need update upon card/queue device release (for example device hot unplug or suspend/resume). Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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- 23 May, 2017 1 commit
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Martin Schwidefsky authored
Merge tag 'vfio-ccw-20170522' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into fixes Pull vfio-ccw fix from Conelia Huck: "vfio-ccw: one patch" * Make some symbols in vfio-ccw static, as detected by sparse.
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- 22 May, 2017 1 commit
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Sebastian Ott authored
Make some symbols static to fix sparse warnings like: drivers/s390/cio/vfio_ccw_ops.c:73:1: warning: symbol 'mdev_type_attr_name' was not declared. Should it be static? Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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- 17 May, 2017 1 commit
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Christian Borntraeger authored
For most cases a protection exception in the host (e.g. copy on write or dirty tracking) on the sie instruction will indicate an instruction length of 4. Turns out that there are some corner cases (e.g. runtime instrumentation) where this is not necessarily true and the ILC is unpredictable. Let's replace our 4 byte rewind_pad with 3 byte nops to prepare for all possible ILCs. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: stable@vger.kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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- 16 May, 2017 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull pstore fix from Kees Cook: "Fix bad EFI vars iterator usage" * tag 'pstore-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: efi-pstore: Fix read iter after pstore API refactor
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Kees Cook authored
During the internal pstore API refactoring, the EFI vars read entry was accidentally made to update a stack variable instead of the pstore private data pointer. This corrects the problem (and removes the now needless argument). Fixes: 125cc42b ("pstore: Replace arguments for read() API") Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Martin Schwidefsky: - convert the debug feature to refcount_t - reduce the copy size for strncpy_from_user - 8 bug fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/virtio: change virtio_feature_desc:features type to __le32 s390: convert debug_info.ref_count from atomic_t to refcount_t s390: move _text symbol to address higher than zero s390/qdio: increase string buffer size s390/ccwgroup: increase string buffer size s390/topology: let topology_mnest_limit() return unsigned char s390/uaccess: use sane length for __strncpy_from_user() s390/uprobes: fix compile for !KPROBES s390/ftrace: fix compile for !MODULES s390/cputime: fix incorrect system time
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds authored
Pull EDAC fix from Borislav Petkov: "A single amd64_edac fix correcting chip select sizes reporting on F17h" * tag 'edac_fix_for_4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC, amd64: Fix reporting of Chip Select sizes on Fam17h
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- 15 May, 2017 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Track alignment in BPF verifier so that legitimate programs won't be rejected on !CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS architectures. 2) Make tail calls work properly in arm64 BPF JIT, from Deniel Borkmann. 3) Make the configuration and semantics Generic XDP make more sense and don't allow both generic XDP and a driver specific instance to be active at the same time. Also from Daniel. 4) Don't crash on resume in xen-netfront, from Vitaly Kuznetsov. 5) Fix use-after-free in VRF driver, from Gao Feng. 6) Use netdev_alloc_skb_ip_align() to avoid unaligned IP headers in qca_spi driver, from Stefan Wahren. 7) Always run cleanup routines in BPF samples when we get SIGTERM, from Andy Gospodarek. 8) The mdio phy code should bring PHYs out of reset using the shared GPIO lines before invoking bus->reset(). From Florian Fainelli. 9) Some USB descriptor access endian fixes in various drivers from Johan Hovold. 10) Handle PAUSE advertisements properly in mlx5 driver, from Gal Pressman. 11) Fix reversed test in mlx5e_setup_tc(), from Saeed Mahameed. 12) Cure netdev leak in AF_PACKET when using timestamping via control messages. From Douglas Caetano dos Santos. 13) netcp doesn't support HWTSTAMP_FILTER_ALl, reject it. From Miroslav Lichvar. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits) ldmvsw: stop the clean timer at beginning of remove ldmvsw: unregistering netdev before disable hardware net: netcp: fix check of requested timestamping filter ipv6: avoid dad-failures for addresses with NODAD qed: Fix uninitialized data in aRFS infrastructure mdio: mux: fix device_node_continue.cocci warnings net/packet: fix missing net_device reference release net/mlx4_core: Use min3 to select number of MSI-X vectors macvlan: Fix performance issues with vlan tagged packets net: stmmac: use correct pointer when printing normal descriptor ring net/mlx5: Use underlay QPN from the root name space net/mlx5e: IPoIB, Only support regular RQ for now net/mlx5e: Fix setup TC ndo net/mlx5e: Fix ethtool pause support and advertise reporting net/mlx5e: Use the correct pause values for ethtool advertising vmxnet3: ensure that adapter is in proper state during force_close sfc: revert changes to NIC revision numbers net: ch9200: add missing USB-descriptor endianness conversions net: irda: irda-usb: fix firmware name on big-endian hosts net: dsa: mv88e6xxx: add default case to switch ...
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fixes from Steve French: "A set of minor cifs fixes" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: [CIFS] Minor cleanup of xattr query function fs: cifs: transport: Use time_after for time comparison SMB2: Fix share type handling cifs: cifsacl: Use a temporary ops variable to reduce code length Don't delay freeing mids when blocked on slow socket write of request CIFS: silence lockdep splat in cifs_relock_file()
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David S. Miller authored
Shannon Nelson says: ==================== ldmvsw: port removal stability Under heavy reboot stress testing we found a couple of timing issues when removing the device that could cause the kernel great heartburn, addressed by these two patches. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Shannon Nelson authored
Stop the clean timer earlier to be sure there's no asynchronous interference while stopping the port. Orabug: 25748241 Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Thomas Tai authored
When running LDom binding/unbinding test, kernel may panic in ldmvsw_open(). It is more likely that because we're removing the ldc connection before unregistering the netdev in vsw_port_remove(), we set up a window of time where one process could be removing the device while another trying to UP the device. This also sometimes causes vio handshake error due to opening a device without closing it completely. We should unregister the netdev before we disable the "hardware". Orabug: 25980913, 25925306 Signed-off-by: Thomas Tai <thomas.tai@oracle.com> Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Miroslav Lichvar authored
The driver doesn't support timestamping of all received packets and should return error when trying to enable the HWTSTAMP_FILTER_ALL filter. Cc: WingMan Kwok <w-kwok2@ti.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2017-05-12 This series contains some mlx5 fixes for net. Please pull and let me know if there's any problem. For -stable: ("net/mlx5e: Fix ethtool pause support and advertise reporting") kernels >= 4.8 ("net/mlx5e: Use the correct pause values for ethtool advertising") kernels >= 4.8 v1->v2: Dropped statistics spinlock patch, it needs some extra work. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Mahesh Bandewar authored
Every address gets added with TENTATIVE flag even for the addresses with IFA_F_NODAD flag and dad-work is scheduled for them. During this DAD process we realize it's an address with NODAD and complete the process without sending any probe. However the TENTATIVE flags stays on the address for sometime enough to cause misinterpretation when we receive a NS. While processing NS, if the address has TENTATIVE flag, we mark it DADFAILED and endup with an address that was originally configured as NODAD with DADFAILED. We can't avoid scheduling dad_work for addresses with NODAD but we can avoid adding TENTATIVE flag to avoid this racy situation. Signed-off-by: Mahesh Bandewar <maheshb@google.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Mintz, Yuval authored
Current memset is using incorrect type of variable, causing the upper-half of the strucutre to be left uninitialized and causing: ethernet/qlogic/qed/qed_init_fw_funcs.c: In function 'qed_set_rfs_mode_disable': ethernet/qlogic/qed/qed_init_fw_funcs.c:993:3: error: '*((void *)&ramline+4)' is used uninitialized in this function [-Werror=uninitialized] Fixes: d51e4af5 ("qed: aRFS infrastructure support") Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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