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2016-06-24Merge tag 'drm-intel-fixes-2016-06-22' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes Hi Dave, just a couple of display fixes, both stable stuff. Maybe we'll be able to enable fbc by default one day. * tag 'drm-intel-fixes-2016-06-22' of git://anongit.freedesktop.org/drm-intel: drm/i915/fbc: Disable on HSW by default for now drm/i915: Revert DisplayPort fast link training feature
2016-06-24Merge branch 'linux-4.7' of git://github.com/skeggsb/linux into drm-fixesDave Airlie
* 'linux-4.7' of git://github.com/skeggsb/linux: drm/nouveau: fix for disabled fbdev emulation
2016-06-24drm/nouveau: fix for disabled fbdev emulationDmitrii Tcvetkov
Hello, after this commit: commit f045f459d925138fe7d6193a8c86406bda7e49da Author: Ben Skeggs <bskeggs@redhat.com> Date: Thu Jun 2 12:23:31 2016 +1000 drm/nouveau/fbcon: fix out-of-bounds memory accesses kernel started to oops when loading nouveau module when using GTX 780 Ti video adapter. This patch fixes the problem. Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=120591 Signed-off-by: Dmitrii Tcvetkov <demfloro@demfloro.ru> Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu> Fixes: f045f459d925 ("nouveau_fbcon_init()") Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2016-06-23PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failedChanwoo Choi
This patch sends the DEVFREQ_POSTCHANGE notification when devfreq->profile->targer() is failed. The PRECHANGE/POSTCHANGE should be paired. Fixes: 0fe3a66410a3 (PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier) Reported-by: Lin Huang <hl@rock-chips.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-06-23cpufreq: pcc-cpufreq: Fix doorbell.access_widthMike Galbraith
Commit 920de6ebfab8 (ACPICA: Hardware: Enhance acpi_hw_validate_register() with access_width/bit_offset awareness) apparently exposed a latent bug, doorbell.access_width is initialized to 64, but per Lv Zheng, it should be 4, and indeed, making that change does bring pcc-cpufreq back to life. Fixes: 920de6ebfab8 (ACPICA: Hardware: Enhance acpi_hw_validate_register() with access_width/bit_offset awareness) Suggested-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-06-23x86: avoid avoid passing around 'thread_info' in stack dumping codeLinus Torvalds
None of the code actually wants a thread_info, it all wants a task_struct, and it's just converting to a thread_info pointer much too early. No semantic change. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-06-23locking: avoid passing around 'thread_info' in mutex debugging codeLinus Torvalds
None of the code actually wants a thread_info, it all wants a task_struct, and it's just converting back and forth between the two ("ti->task" to get the task_struct from the thread_info, and "task_thread_info(task)" to go the other way). No semantic change. Acked-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-06-23Btrfs: Force stripesize to the value of sectorsizeChandan Rajendra
Btrfs code currently assumes stripesize to be same as sectorsize. However Btrfs-progs (until commit df05c7ed455f519e6e15e46196392e4757257305) has been setting btrfs_super_block->stripesize to a value of 4096. This commit makes sure that the value of btrfs_super_block->stripesize is a power of 2. Later, it unconditionally sets btrfs_root->stripesize to sectorsize. Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2016-06-23btrfs: fix disk_i_size update bug when fallocate() failsWang Xiaoguang
When doing truncate operation, btrfs_setsize() will first call truncate_setsize() to set new inode->i_size, but if later btrfs_truncate() fails, btrfs_setsize() will call "i_size_write(inode, BTRFS_I(inode)->disk_i_size)" to reset the inmemory inode size, now bug occurs. It's because for truncate case btrfs_ordered_update_i_size() directly uses inode->i_size to update BTRFS_I(inode)->disk_i_size, indeed we should use the "offset" argument to update disk_i_size. Here is the call graph: ==>btrfs_truncate() ====>btrfs_truncate_inode_items() ======>btrfs_ordered_update_i_size(inode, last_size, NULL); Here btrfs_ordered_update_i_size()'s offset argument is last_size. And below test case can reveal this bug: dd if=/dev/zero of=fs.img bs=$((1024*1024)) count=100 dev=$(losetup --show -f fs.img) mkdir -p /mnt/mntpoint mkfs.btrfs -f $dev mount $dev /mnt/mntpoint cd /mnt/mntpoint echo "workdir is: /mnt/mntpoint" blocksize=$((128 * 1024)) dd if=/dev/zero of=testfile bs=$blocksize count=1 sync count=$((17*1024*1024*1024/blocksize)) echo "file size is:" $((count*blocksize)) for ((i = 1; i <= $count; i++)); do i=$((i + 1)) dst_offset=$((blocksize * i)) xfs_io -f -c "reflink testfile 0 $dst_offset $blocksize"\ testfile > /dev/null done sync truncate --size 0 testfile ls -l testfile du -sh testfile exit In this case, truncate operation will fail for enospc reason and "du -sh testfile" returns value greater than 0, but testfile's size is 0, we need to reflect correct inode->i_size. Signed-off-by: Wang Xiaoguang <wangxg.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2016-06-23Btrfs: fix error handling in map_private_extent_bufferLiu Bo
map_private_extent_buffer() can return -EINVAL in two different cases, 1. when the requested contents span two pages if nodesize is larger than pagesize, 2. when it detects something insane. The 2nd one used to be only a WARN_ON(1), and we decided to return a error to callers, but we didn't fix up all its callers, which will be addressed by this patch. Without this, btrfs may end up with 'general protection', ie. reading invalid memory. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2016-06-23Btrfs: fix error return code in btrfs_init_test_fs()Wei Yongjun
Fix to return a negative error code from the kern_mount() error handling case instead of 0(ret is set to 0 by register_filesystem), as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2016-06-23Merge branches '4.7-rc-misc', 'hfi1-fixes', 'i40iw-rc-fixes' and ↵Doug Ledford
'mellanox-rc-fixes' into k.o/for-4.7-rc
2016-06-23IB/srpt: Reduce QP buffer sizeBart Van Assche
The memory needed for the send and receive queues associated with a QP is proportional to the max_sge parameter. The current value of that parameter is such that with an mlx4 HCA the QP buffer size is 8 MB. Since DMA is used for communication between HCA and CPU that buffer either has to be allocated coherently or map_single() must succeed for that buffer. Since large contiguous allocations are fragile and since the maximum segment size for e.g. swiotlb is 256 KB, reduce the max_sge parameter. This patch avoids that the following text appears on the console after SRP logout and relogin on a system equipped with multiple IB HCAs: mlx4_core 0000:05:00.0: swiotlb buffer is full (sz: 8388608 bytes) swiotlb: coherent allocation failed for device 0000:05:00.0 size=8388608 CPU: 11 PID: 148 Comm: kworker/11:1 Not tainted 4.7.0-rc4-dbg+ #1 Call Trace: [<ffffffff812c6d35>] dump_stack+0x67/0x92 [<ffffffff812efe71>] swiotlb_alloc_coherent+0x141/0x150 [<ffffffff810458be>] x86_swiotlb_alloc_coherent+0x3e/0x50 [<ffffffffa03861fa>] mlx4_buf_direct_alloc.isra.5+0x9a/0x120 [mlx4_core] [<ffffffffa0386545>] mlx4_buf_alloc+0x165/0x1a0 [mlx4_core] [<ffffffffa035053d>] create_qp_common.isra.29+0x57d/0xff0 [mlx4_ib] [<ffffffffa03510da>] mlx4_ib_create_qp+0x12a/0x3f0 [mlx4_ib] [<ffffffffa031154a>] ib_create_qp+0x3a/0x250 [ib_core] [<ffffffffa055dd4b>] srpt_cm_handler+0x4bb/0xcad [ib_srpt] [<ffffffffa02c1ab0>] cm_process_work+0x20/0xf0 [ib_cm] [<ffffffffa02c3640>] cm_work_handler+0x1ac0/0x2059 [ib_cm] [<ffffffff810737ed>] process_one_work+0x19d/0x490 [<ffffffff81073b29>] worker_thread+0x49/0x490 [<ffffffff8107a0ea>] kthread+0xea/0x100 [<ffffffff815b25af>] ret_from_fork+0x1f/0x40 Fixes: b99f8e4d7bcd ("IB/srpt: convert to the generic RDMA READ/WRITE API") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Laurence Oberman <loberman@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23i40iw: Enable level-1 PBL for fast memory registrationShiraz Saleem
Set the chunk_size to enable level-1 PBL support when the fast memory page count is more than one. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23i40iw: Return correct max_fast_reg_page_list_lenFaisal Latif
Return correct value for max_fast_reg_page_list_len from i40iw_query_device(). Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23i40iw: Correct status check on i40iw_get_pbleFaisal Latif
i40iw_get_pble returns 0 on success. Correct the check on return code. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23i40iw: Correct CQ armingShiraz Saleem
CQ is armed for solicited events only, ignoring other notification flags. Correct this by arming for next and arming for solicited event if IB_CQ_SOLICITED is set. Also protect CQ shadow area update with spinlock. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/rdmavt: Correct qp_priv_alloc() return value testMike Marciniszyn
The current drivers return errors from this calldown wrapped in an ERR_PTR(). The rdmavt code incorrectly tests for NULL. The code is fixed to use IS_ERR() and change ret according to the driver return value. Cc: Stable <stable@vger.kernel.org> # 4.6+ Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/hfi1: Don't zero out qp->s_ack_queue in rvt_reset_qpAshutosh Dixit
Since rvt_reset_qp already zero's out qp->s_ack_queue head and tail pointers, there is no need to zero out qp->s_ack_queue itself. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/hfi1: Fix deadlock with txreq allocation slow pathMike Marciniszyn
A failure in the get_txreq() inline will result in a slow path retry using __get_txreq(). __get_txreq() attempts to procure the qp s_lock, which is already held in all callers. Fix by deleting the s_lock maintenance in __get_txreq() and add sparse syntax hooks to future proof the code. Cc: Stable <stable@vger.kernel.org> # 4.6+ Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx4: Prevent cross page boundary allocationChuck Lever
Prevent cross page boundary allocation by allocating new page, this is required to be aligned with ConnectX-3 HW requirements. Not doing that might cause to "RDMA read local protection" error. Fixes: 1b2cd0fc673c ('IB/mlx4: Support the new memory registration API') Suggested-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx4: Fix memory leak if QP creation failedDotan Barak
When RC, UC, or RAW QPs are created, a qp object is allocated (kzalloc). If at a later point (in procedure create_qp_common) the qp creation fails, this qp object must be freed. Fixes: 1ffeb2eb8be99 ("IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support") Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx4: Verify port number in flow steering create flowYishai Hadas
In procedure mlx4_ib_create_flow, passing an invalid port number will cause an out-of-bounds array access. Data passed to this procedure can come from user-space. Therefore, need to validate port number before proceeding onwards. Note that we check against the number of physical ports declared at the verbs (ib core) level; When bonding is active, the verbs level sees one physical port, even though the low-level driver sees two ports. Fixes: f77c0162a339 ("IB/mlx4: Add receive flow steering support") Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx4: Fix error flow when sending mads under SRIOVYishai Hadas
Fix mad send error flow to prevent double freeing address handles, and leaking tx_ring entries when SRIOV is active. If ib_mad_post_send fails, the address handle pointer in the tx_ring entry must be set to NULL (or there will be a double-free) and tx_tail must be incremented (or there will be a leak of tx_ring entries). The tx_ring is handled the same way in the send-completion handler. Fixes: 37bfc7c1e83f ("IB/mlx4: SR-IOV multiplex and demultiplex MADs") Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx4: Fix the SQ size of an RC QPYishai Hadas
When calculating the required size of an RC QP send queue, leave enough space for masked atomic operations, which require more space than "regular" atomic operation. Fixes: 6fa8f719844b ("IB/mlx4: Add support for masked atomic operations") Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Jack Morgenstein <jackm@mellanox.co.il> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx5: Fix wrong naming of port_rcv_data counterTalat Batheesh
port_xmit_data is written instead of port_rcv_data. Fixes: 3efd9a11212d ('IB/mlx5: Modify MAD reading counters method to use counter registers') Signed-off-by: Talat Batheesh <talatb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/mlx5: Fix post send fence logicEli Cohen
If the caller specified IB_SEND_FENCE in the send flags of the work request and no previous work request stated that the successive one should be fenced, the work request would be executed without a fence. This could result in RDMA read or atomic operations failure due to a MR being invalidated. Fix this by adding the mlx5 enumeration for fencing RDMA/atomic operations and fix the logic to apply this. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/uverbs: Initialize ib_qp_init_attr with zerosMaor Gottlieb
Initialize ib_qp_init_attr with zeros in order to avoid from garbage in fields that won't be set with user values. Fixes: a060b5629ab06 ('IB/core: generic RDMA READ/WRITE API') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/core: Fix false search of the IB_SA_WELL_KNOWN_GUIDEli Cohen
When virtualziation is supported, VFs may send SA MADs to a GID formed by the concatenation of the subnet prefix with the IB_SA_WELL_KNOWN_GUID. When a response is required, the current code will search the local HCA's port for the received GID to figure out the GID index of the entry containing this GID. However, since this is not a real GID it will not be found and error will be printed. We change the logic to check if the destination GID is this special GID and avoid lookup in this case and use GID index 0. Fixes: a0c1b2a35087 ('IB/core: Support accessing SA in virtualized environment') Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/core: Fix RoCE v1 multicast join logic issueAlex Vesker
During multicast join of RoCEv1, IGMP join state and max hop limit were updated incorrectly. IGMP join should be sent and marked as joined only on RoCEv2 after a successful join. Max hops should be updated to the hop limit on RoCEv2 regardless of the join state. Fixes: bee3c3c91865 ('IB/cma: Join and leave multicast groups...') Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23IB/core: Fix no default GIDs when netdevice reregistersTalat Batheesh
Currently, when the netdevice returned by get_netdev is unregistered, we delete all GIDs (including the default GIDs) and reset their attributes. Therefore, when we re-register it, no default GIDs will be assigned (as their "default GID") attribute will be reset. Fixing this by keeping "default GID" attribute. Fixes: 03db3a2d81e6 ('IB/core: Add RoCE GID table management') Signed-off-by: Talat Batheesh <talatb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-06-23x86/xen: avoid m2p lookup when setting early page table entriesDavid Vrabel
When page tables entries are set using xen_set_pte_init() during early boot there is no page fault handler that could handle a fault when performing an M2P lookup. In 64 bit guests (usually dom0) early_ioremap() would fault in xen_set_pte_init() because an M2P lookup faults because the MFN is in MMIO space and not mapped in the M2P. This lookup is done to see if the PFN in in the range used for the initial page table pages, so that the PTE may be set as read-only. The M2P lookup can be avoided by moving the check (and clear of RW) earlier when the PFN is still available. Reported-by: Kevin Moraga <kmoragas@riseup.net> Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Juergen Gross <jgross@suse.com>
2016-06-23hwmon: (dell-smm) Cache fan_type() calls and change fan detectionPali Rohár
On more Dell machines (e.g. Dell Precision M3800) fan_type() call is too expensive (CPU is too long in SMM mode) and cause kernel to hang. This is bug in Dell SMM or BIOS. This patch caches type for each fan (as it should not change) and changes the way how fan presense is detected. First it try function fan_status() as was before commit f989e55452c7 ("i8k: Add support for fan labels"). And if that fails fallback to fan_type(). *_status() functions can fail in case fan is not currently accessible (e.g. present on GPU which is currently turned off). Reported-by: Tolga Cakir <cevelnet@gmail.com> Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Link: https://bugzilla.kernel.org/show_bug.cgi?id=112021 Cc: stable@vger.kernel.org # v4.0+, will need backport Tested-by: Tolga Cakir <cevelnet@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-06-23Merge branch 'fixes' of ↵Rafael J. Wysocki
https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq into pm-devfreq Pull devfreq fixes for v4.7 from MyungJoo Ham. * 'fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq: PM / devfreq: fix initialization of current frequency in last status PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check PM / devfreq: remove double put_device PM / devfreq: fix double call put_device PM / devfreq: fix duplicated kfree on devfreq pointer PM / devfreq: devm_kzalloc to have dev pointer more precisely
2016-06-23xen/pciback: Fix conf_space read/write overlap check.Andrey Grodzovsky
Current overlap check is evaluating to false a case where a filter field is fully contained (proper subset) of a r/w request. This change applies classical overlap check instead to include all the scenarios. More specifically, for (Hilscher GmbH CIFX 50E-DP(M/S)) device driver the logic is such that the entire confspace is read and written in 4 byte chunks. In this case as an example, CACHE_LINE_SIZE, LATENCY_TIMER and PCI_BIST are arriving together in one call to xen_pcibk_config_write() with offset == 0xc and size == 4. With the exsisting overlap check the LATENCY_TIMER field (offset == 0xd, length == 1) is fully contained in the write request and hence is excluded from write, which is incorrect. Signed-off-by: Andrey Grodzovsky <andrey2805@gmail.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Jan Beulich <JBeulich@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-06-23x86/xen: fix upper bound of pmd loop in xen_cleanhighmap()Juergen Gross
xen_cleanhighmap() is operating on level2_kernel_pgt only. The upper bound of the loop setting non-kernel-image entries to zero should not exceed the size of level2_kernel_pgt. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-06-23xen/balloon: Fix declared-but-not-defined warningRoss Lagerwall
Fix a declared-but-not-defined warning when building with XEN_BALLOON_MEMORY_HOTPLUG=n. This fixes a regression introduced by commit dfd74a1edfab ("xen/balloon: Fix crash when ballooning on x86 32 bit PAE"). Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Acked-by: Juergen Gross <jgross@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-06-23gpu: host1x: Remove useless local variableThierry Reding
The local 'val' variable is used to store a value and immediately return it to its caller, and hence serves no purpose. Just drop it and directly return the value. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: Constify array of action handlersThierry Reding
This array never needs to be modified and therefore can be read-only data. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: Remove redundant parenthesesThierry Reding
There's no need to wrap the BIT() macro into an extra set of parentheses because it's already implemented to use its own set. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: Whitespace cleanup for readabilityThierry Reding
Insert a number of blank lines in places where they increase readability of the code. Also collapse various variable declarations to shorten some functions and finally rewrite some code for readability. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: Fix a couple of checkpatch warningsThierry Reding
Fix a couple of occurrences where no blank line was used to separate variable declarations from code or where block comments were wrongly formatted. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: syncpt: Use kcalloc() instead of kzalloc()Thierry Reding
Use kcalloc() to allocate arrays rather than passing the product of the size per element by the number of elements to kzalloc(). Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: cdma: Drop unnecessary local variableThierry Reding
The local 'pos' variable doesn't serve any purpose other than being a shortcut for pb->pos, but the result doesn't remove much, so simply drop the local variable. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: channel: Use correct typeThierry Reding
find_first_zero_bit() returns an unsigned long, so make the local variable that stores the result the same type for consistency. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: Use unsigned int consistently for IDsThierry Reding
IDs can never be negative so use unsigned int. In some instances an explicitly sized type (such as u32) was used for no particular reason, so turn those into unsigned int as well for consistency. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: Consistently use unsigned int for countsThierry Reding
The number of channels, syncpoints, bases and mlocks can never be negative, so use unsigned int instead of int. Also make loop variables the same type for consistency. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23gpu: host1x: hw: intr_hw: Remove create_workqueueBhaktipriya Shridhar
System workqueues have been able to handle high level of concurrency for a long time now and there's no reason to use dedicated workqueues just to gain concurrency. Since the workqueue host->intr_wq is involved in sync point interrupts, and sync point wait and is not being used on a memory reclaim path, dedicated host->intr_wq has been replaced with the use of system_wq. Unlike a dedicated per-cpu workqueue created with create_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantees unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. cancel_work_sync() has been used in _host1x_free_syncpt_irq() to ensure that no work is pending by the time exit path runs. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-23Merge branch 'devel-dt-free-map' of ↵Thierry Reding
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl into drm/tegra/for-next
2016-06-23pinctrl: pinconf: Add generic helper function for freeing mappingsJon Hunter
The pinconf-generic.h file exposes functions for creating generic mappings but it does not expose a function for freeing the mappings. Add a function for freeing generic mappings. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit (git 2.34.1) at 2025-09-14 06:45:36 +0000