- 11 Feb, 2020 40 commits
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Sean Christopherson authored
[ Upstream commit fe6ed369 ] Reject writes to RTIT address MSRs if the data being written is a non-canonical address as the MSRs are subject to canonical checks, e.g. KVM will trigger an unchecked #GP when loading the values to hardware during pt_guest_enter(). Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Sean Christopherson authored
[ Upstream commit 736c291c ] Convert a plethora of parameters and variables in the MMU and page fault flows from type gva_t to gpa_t to properly handle TDP on 32-bit KVM. Thanks to PSE and PAE paging, 32-bit kernels can access 64-bit physical addresses. When TDP is enabled, the fault address is a guest physical address and thus can be a 64-bit value, even when both KVM and its guest are using 32-bit virtual addressing, e.g. VMX's VMCS.GUEST_PHYSICAL is a 64-bit field, not a natural width field. Using a gva_t for the fault address means KVM will incorrectly drop the upper 32-bits of the GPA. Ditto for gva_to_gpa() when it is used to translate L2 GPAs to L1 GPAs. Opportunistically rename variables and parameters to better reflect the dual address modes, e.g. use "cr2_or_gpa" for fault addresses and plain "addr" instead of "vaddr" when the address may be either a GVA or an L2 GPA. Similarly, use "gpa" in the nonpaging_page_fault() flows to avoid a confusing "gpa_t gva" declaration; this also sets the stage for a future patch to combing nonpaging_page_fault() and tdp_page_fault() with minimal churn. Sprinkle in a few comments to document flows where an address is known to be a GVA and thus can be safely truncated to a 32-bit value. Add WARNs in kvm_handle_page_fault() and FNAME(gva_to_gpa_nested)() to help document such cases and detect bugs. Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Sean Christopherson authored
[ Upstream commit e30a7d62 ] Remove the bogus 64-bit only condition from the check that disables MMIO spte optimization when the system supports the max PA, i.e. doesn't have any reserved PA bits. 32-bit KVM always uses PAE paging for the shadow MMU, and per Intel's SDM: PAE paging translates 32-bit linear addresses to 52-bit physical addresses. The kernel's restrictions on max physical addresses are limits on how much memory the kernel can reasonably use, not what physical addresses are supported by hardware. Fixes: ce88decf ("KVM: MMU: mmio page fault support") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Josef Bacik authored
[ Upstream commit 96bf313ecb33567af4cb53928b0c951254a02759 ] There exists a deadlock with range_cyclic that has existed forever. If we loop around with a bio already built we could deadlock with a writer who has the page locked that we're attempting to write but is waiting on a page in our bio to be written out. The task traces are as follows PID: 1329874 TASK: ffff889ebcdf3800 CPU: 33 COMMAND: "kworker/u113:5" #0 [ffffc900297bb658] __schedule at ffffffff81a4c33f #1 [ffffc900297bb6e0] schedule at ffffffff81a4c6e3 #2 [ffffc900297bb6f8] io_schedule at ffffffff81a4ca42 #3 [ffffc900297bb708] __lock_page at ffffffff811f145b #4 [ffffc900297bb798] __process_pages_contig at ffffffff814bc502 #5 [ffffc900297bb8c8] lock_delalloc_pages at ffffffff814bc684 #6 [ffffc900297bb900] find_lock_delalloc_range at ffffffff814be9ff #7 [ffffc900297bb9a0] writepage_delalloc at ffffffff814bebd0 #8 [ffffc900297bba18] __extent_writepage at ffffffff814bfbf2 #9 [ffffc900297bba98] extent_write_cache_pages at ffffffff814bffbd PID: 2167901 TASK: ffff889dc6a59c00 CPU: 14 COMMAND: "aio-dio-invalid" #0 [ffffc9003b50bb18] __schedule at ffffffff81a4c33f #1 [ffffc9003b50bba0] schedule at ffffffff81a4c6e3 #2 [ffffc9003b50bbb8] io_schedule at ffffffff81a4ca42 #3 [ffffc9003b50bbc8] wait_on_page_bit at ffffffff811f24d6 #4 [ffffc9003b50bc60] prepare_pages at ffffffff814b05a7 #5 [ffffc9003b50bcd8] btrfs_buffered_write at ffffffff814b1359 #6 [ffffc9003b50bdb0] btrfs_file_write_iter at ffffffff814b5933 #7 [ffffc9003b50be38] new_sync_write at ffffffff8128f6a8 #8 [ffffc9003b50bec8] vfs_write at ffffffff81292b9d #9 [ffffc9003b50bf00] ksys_pwrite64 at ffffffff81293032 I used drgn to find the respective pages we were stuck on page_entry.page 0xffffea00fbfc7500 index 8148 bit 15 pid 2167901 page_entry.page 0xffffea00f9bb7400 index 7680 bit 0 pid 1329874 As you can see the kworker is waiting for bit 0 (PG_locked) on index 7680, and aio-dio-invalid is waiting for bit 15 (PG_writeback) on index 8148. aio-dio-invalid has 7680, and the kworker epd looks like the following crash> struct extent_page_data ffffc900297bbbb0 struct extent_page_data { bio = 0xffff889f747ed830, tree = 0xffff889eed6ba448, extent_locked = 0, sync_io = 0 } Probably worth mentioning as well that it waits for writeback of the page to complete while holding a lock on it (at prepare_pages()). Using drgn I walked the bio pages looking for page 0xffffea00fbfc7500 which is the one we're waiting for writeback on bio = Object(prog, 'struct bio', address=0xffff889f747ed830) for i in range(0, bio.bi_vcnt.value_()): bv = bio.bi_io_vec[i] if bv.bv_page.value_() == 0xffffea00fbfc7500: print("FOUND IT") which validated what I suspected. The fix for this is simple, flush the epd before we loop back around to the beginning of the file during writeout. Fixes: b293f02e ("Btrfs: Add writepages support") CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Wayne Lin authored
[ Upstream commit 64e62bdf ] [Why] This patch is trying to address the issue observed when hotplug DP daisy chain monitors. e.g. src-mstb-mstb-sst -> src (unplug) mstb-mstb-sst -> src-mstb-mstb-sst (plug in again) Once unplug a DP MST capable device, driver will call drm_dp_mst_topology_mgr_set_mst() to disable MST. In this function, it cleans data of topology manager while disabling mst_state. However, it doesn't clean up the proposed_vcpis of topology manager. If proposed_vcpi is not reset, once plug in MST daisy chain monitors later, code will fail at checking port validation while trying to allocate payloads. When MST capable device is plugged in again and try to allocate payloads by calling drm_dp_update_payload_part1(), this function will iterate over all proposed virtual channels to see if any proposed VCPI's num_slots is greater than 0. If any proposed VCPI's num_slots is greater than 0 and the port which the specific virtual channel directed to is not in the topology, code then fails at the port validation. Since there are stale VCPI allocations from the previous topology enablement in proposed_vcpi[], code will fail at port validation and reurn EINVAL. [How] Clean up the data of stale proposed_vcpi[] and reset mgr->proposed_vcpis to NULL while disabling mst in drm_dp_mst_topology_mgr_set_mst(). Changes since v1: *Add on more details in commit message to describe the issue which the patch is trying to fix Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> [added cc to stable] Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191205090043.7580-1-Wayne.Lin@amd.com Cc: <stable@vger.kernel.org> # v3.17+ Signed-off-by: Sasha Levin <sashal@kernel.org>
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Claudiu Beznea authored
[ Upstream commit 2c1fb9d8 ] Changing pixel clock source without having this clock source enabled will block the timing engine and the next operations after (in this case setting ATMEL_HLCDC_CFG(5) settings in atmel_hlcdc_crtc_mode_set_nofb() will fail). It is recomended (although in datasheet this is not present) to actually enabled pixel clock source before doing any changes on timing enginge (only SAM9X60 datasheet specifies that the peripheral clock and pixel clock must be enabled before using LCD controller). Fixes: 1a396789 ("drm: add Atmel HLCDC Display Controller support") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: <stable@vger.kernel.org> # v4.0+ Link: https://patchwork.freedesktop.org/patch/msgid/1576672109-22707-3-git-send-email-claudiu.beznea@microchip.comSigned-off-by: Sasha Levin <sashal@kernel.org>
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Josef Bacik authored
[ Upstream commit 4e19443d ] Sometimes when running generic/475 we would trip the WARN_ON(cache->reserved) check when free'ing the block groups on umount. This is because sometimes we don't commit the transaction because of IO errors and thus do not cleanup the tree logs until at umount time. These blocks are still reserved until they are cleaned up, but they aren't cleaned up until _after_ we do the free block groups work. Fix this by moving the free after free'ing the fs roots, that way all of the tree logs are cleaned up and we have a properly cleaned fs. A bunch of loops of generic/475 confirmed this fixes the problem. CC: stable@vger.kernel.org # 4.9+ Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Anand Jain authored
[ Upstream commit 4273eaff ] We don't need int argument bool shall do in free_root_pointers(). And rename the argument as it confused two people. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Eric Biggers authored
[ Upstream commit 547c556f ] ext4_writepages() on an encrypted file has to encrypt the data, but it can't modify the pagecache pages in-place, so it encrypts the data into bounce pages and writes those instead. All bounce pages are allocated from a mempool using GFP_NOFS. This is not correct use of a mempool, and it can deadlock. This is because GFP_NOFS includes __GFP_DIRECT_RECLAIM, which enables the "never fail" mode for mempool_alloc() where a failed allocation will fall back to waiting for one of the preallocated elements in the pool. But since this mode is used for all a bio's pages and not just the first, it can deadlock waiting for pages already in the bio to be freed. This deadlock can be reproduced by patching mempool_alloc() to pretend that pool->alloc() always fails (so that it always falls back to the preallocations), and then creating an encrypted file of size > 128 KiB. Fix it by only using GFP_NOFS for the first page in the bio. For subsequent pages just use GFP_NOWAIT, and if any of those fail, just submit the bio and start a new one. This will need to be fixed in f2fs too, but that's less straightforward. Fixes: c9af28fd ("ext4 crypto: don't let data integrity writebacks fail with ENOMEM") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20191231181149.47619-1-ebiggers@kernel.orgSigned-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Sasha Levin <sashal@kernel.org>
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Florian Fainelli authored
[ Upstream commit df373702 ] b53_configure_vlan() is called by the bcm_sf2 driver upon setup and indirectly through resume as well. During the initial setup, we are guaranteed that dev->vlan_enabled is false, so there is no change in behavior, however during suspend, we may have enabled VLANs before, so we do want to restore that setting. Fixes: dad8d7c6 ("net: dsa: b53: Properly account for VLAN filtering") Fixes: 967dd82f ("net: dsa: b53: Add support for Broadcom RoboSwitch") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Harini Katakam authored
[ Upstream commit f822e9c4 ] GEM_MAX_TX_LEN currently resolves to 0x3FF8 for any IP version supporting TSO with full 14bits of length field in payload descriptor. But an IP errata causes false amba_error (bit 6 of ISR) when length in payload descriptors is specified above 16387. The error occurs because the DMA falsely concludes that there is not enough space in SRAM for incoming payload. These errors were observed continuously under stress of large packets using iperf on a version where SRAM was 16K for each queue. This errata will be documented shortly and affects all versions since TSO functionality was added. Hence limit the max length to 0x3FC0 (rounded). Signed-off-by: Harini Katakam <harini.katakam@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Harini Katakam authored
[ Upstream commit 41c1ef97 ] The IP TSO implementation does NOT require the length to be a multiple of 8. That is only a requirement for UFO as per IP documentation. Hence, exit macb_features_check function in the beginning if the protocol is not UDP. Only when it is UDP, proceed further to the alignment checks. Update comments to reflect the same. Also remove dead code checking for protocol TCP when calculating header length. Fixes: 1629dd4f ("cadence: Add LSO support.") Signed-off-by: Harini Katakam <harini.katakam@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Raed Salem authored
[ Upstream commit 08db2cf5 ] SA context is allocated at mlx5_fpga_ipsec_create_sa_ctx, however the counterpart mlx5_fpga_ipsec_delete_sa_ctx function nullifies sa_ctx pointer without freeing the memory allocated, hence the memory leak. Fix by free SA context when the SA is released. Fixes: d6c4f029 ("net/mlx5: Refactor accel IPSec code") Signed-off-by: Raed Salem <raeds@mellanox.com> Reviewed-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Raed Salem authored
[ Upstream commit 0dc2c534 ] The function mlx5_fpga_esp_validate_xfrm_attrs is wrongly used with negative negation as zero value indicates success but it used as failure return value instead. Fix by remove the unary not negation operator. Fixes: 05564d0a ("net/mlx5: Add flow-steering commands for FPGA IPSec implementation") Signed-off-by: Raed Salem <raeds@mellanox.com> Reviewed-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Florian Fainelli authored
[ Upstream commit 263a425a ] After a number of suspend and resume cycles, it is possible for the RBUF to be stuck in Wake-on-LAN mode, despite the MPD enable bit being cleared which instructed the RBUF to exit that mode. Avoid creating that problematic condition by clearing the RX_EN and TX_EN bits in the UniMAC prior to disable the Magic Packet Detector logic which is guaranteed to make the RBUF exit Wake-on-LAN mode. Fixes: 83e82f4c ("net: systemport: add Wake-on-LAN support") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cong Wang authored
[ Upstream commit 52b5ae50 ] Jakub noticed there is a potential resource leak in tcindex_set_parms(): when tcindex_filter_result_init() fails and it jumps to 'errout1' which doesn't release the memory and resources allocated by tcindex_alloc_perfect_hash(). We should just jump to 'errout_alloc' which calls tcindex_free_perfect_hash(). Fixes: b9a24bb7 ("net_sched: properly handle failure case of tcf_exts_init()") Reported-by: Jakub Kicinski <kuba@kernel.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lorenzo Bianconi authored
[ Upstream commit c35947b8 ] Move rx_dropped and rx_errors counters in mvneta_pcpu_stats in order to avoid possible races updating statistics Fixes: 562e2f46 ("net: mvneta: Improve the buffer allocation method for SWBM") Fixes: dc35a10f ("net: mvneta: bm: add support for hardware buffer management") Fixes: c5aff182 ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Florian Fainelli authored
[ Upstream commit de34d708 ] The 7445 switch clocking profiles do not allow us to run the IMP port at 2Gb/sec in a way that it is reliable and consistent. Make sure that the setting is only applied to the 7278 family. Fixes: 8f1880cb ("net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Eric Dumazet authored
[ Upstream commit 38f88c45 ] syzbot managed to send an IPX packet through bond_alb_xmit() and af_packet and triggered a use-after-free. First, bond_alb_xmit() was using ipx_hdr() helper to reach the IPX header, but ipx_hdr() was using the transport offset instead of the network offset. In the particular syzbot report transport offset was 0xFFFF This patch removes ipx_hdr() since it was only (mis)used from bonding. Then we need to make sure IPv4/IPv6/IPX headers are pulled in skb->head before dereferencing anything. BUG: KASAN: use-after-free in bond_alb_xmit+0x153a/0x1590 drivers/net/bonding/bond_alb.c:1452 Read of size 2 at addr ffff8801ce56dfff by task syz-executor.2/18108 (if (ipx_hdr(skb)->ipx_checksum != IPX_NO_CHECKSUM) ...) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: [<ffffffff8441fc42>] __dump_stack lib/dump_stack.c:17 [inline] [<ffffffff8441fc42>] dump_stack+0x14d/0x20b lib/dump_stack.c:53 [<ffffffff81a7dec4>] print_address_description+0x6f/0x20b mm/kasan/report.c:282 [<ffffffff81a7e0ec>] kasan_report_error mm/kasan/report.c:380 [inline] [<ffffffff81a7e0ec>] kasan_report mm/kasan/report.c:438 [inline] [<ffffffff81a7e0ec>] kasan_report.cold+0x8c/0x2a0 mm/kasan/report.c:422 [<ffffffff81a7dc4f>] __asan_report_load_n_noabort+0xf/0x20 mm/kasan/report.c:469 [<ffffffff82c8c00a>] bond_alb_xmit+0x153a/0x1590 drivers/net/bonding/bond_alb.c:1452 [<ffffffff82c60c74>] __bond_start_xmit drivers/net/bonding/bond_main.c:4199 [inline] [<ffffffff82c60c74>] bond_start_xmit+0x4f4/0x1570 drivers/net/bonding/bond_main.c:4224 [<ffffffff83baa558>] __netdev_start_xmit include/linux/netdevice.h:4525 [inline] [<ffffffff83baa558>] netdev_start_xmit include/linux/netdevice.h:4539 [inline] [<ffffffff83baa558>] xmit_one net/core/dev.c:3611 [inline] [<ffffffff83baa558>] dev_hard_start_xmit+0x168/0x910 net/core/dev.c:3627 [<ffffffff83bacf35>] __dev_queue_xmit+0x1f55/0x33b0 net/core/dev.c:4238 [<ffffffff83bae3a8>] dev_queue_xmit+0x18/0x20 net/core/dev.c:4278 [<ffffffff84339189>] packet_snd net/packet/af_packet.c:3226 [inline] [<ffffffff84339189>] packet_sendmsg+0x4919/0x70b0 net/packet/af_packet.c:3252 [<ffffffff83b1ac0c>] sock_sendmsg_nosec net/socket.c:673 [inline] [<ffffffff83b1ac0c>] sock_sendmsg+0x12c/0x160 net/socket.c:684 [<ffffffff83b1f5a2>] __sys_sendto+0x262/0x380 net/socket.c:1996 [<ffffffff83b1f700>] SYSC_sendto net/socket.c:2008 [inline] [<ffffffff83b1f700>] SyS_sendto+0x40/0x60 net/socket.c:2004 Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andreas Kemnade authored
commit 2f3dc25c upstream. There is a bit which gets cleared after conversion. Fixes: 9bb9e29c ("mfd: Add Ricoh RN5T618 PMIC core driver") Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Marco Felsch authored
commit 1112ba02 upstream. The watchdog driver compatible is "dlg,da9062-watchdog" and not "dlg,da9062-wdt". Therefore the mfd-core can't populate the of_node and fwnode. As result the watchdog driver can't parse the devicetree. Fixes: 9b40b030 ("mfd: da9062: Supply core driver") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dan Carpenter authored
commit 5d3805af upstream. If "seen_pebs = init_seen(ubi);" fails then "seen_pebs" is an error pointer and we try to kfree() it which results in an Oops. This patch re-arranges the error handling so now it only frees things which have been allocated successfully. Fixes: daef3dd1 ("UBI: Fastmap: Add self check to detect absent PEBs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Sascha Hauer authored
commit ef5aafb6 upstream. set_seen() sets the bit corresponding to the PEB number in the bitmap, so when self_check_seen() wants to find PEBs that haven't been seen we have to print the PEBs that have their bit cleared, not the ones which have it set. Fixes: 5d71afb0 ("ubi: Use bitmaps in Fastmap self-check code") Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Trond Myklebust authored
commit 09a80f2a upstream. We must allow for the fact that iov_iter_write() could have returned a short write (e.g. if there was an ENOSPC issue). Fixes: d890be15 "nfsd: Add I/O trace points in the NFSv4 write path" Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arnd Bergmann authored
commit 9594497f upstream. The nfsd4_blocked_lock->nbl_time timestamp is recorded in jiffies, but then compared to a CLOCK_REALTIME timestamp later on, which makes no sense. For consistency with the other timestamps, change this to use a time_t. This is a change in behavior, which may cause regressions, but the current code is not sensible. On a system with CONFIG_HZ=1000, the 'time_after((unsigned long)nbl->nbl_time, (unsigned long)cutoff))' check is false for roughly the first 18 days of uptime and then true for the next 49 days. Fixes: 7919d0a2 ("nfsd: add a LRU list for blocked locks") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arnd Bergmann authored
commit 2561c92b upstream. The nfsd4_cb_layout_done() function takes a 'time_t' value, multiplied by NSEC_PER_SEC*2 to get a nanosecond value. This works fine on 64-bit architectures, but on 32-bit, any value over 1 second results in a signed integer overflow with unexpected results. Cast one input to a 64-bit type in order to produce the same result that we have on 64-bit architectures, regarless of the type of nfsd4_lease. Fixes: 6b9b2107 ("nfsd: give up on CB_LAYOUTRECALLs after two lease periods") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Yishai Hadas authored
commit d07de8bd upstream. The nr_pages argument of get_user_pages_remote() should always be in terms of the system page size, not the MR page size. Use PAGE_SIZE instead of umem_odp->page_shift. Fixes: 403cd12e ("IB/umem: Add contiguous ODP support") Link: https://lore.kernel.org/r/20191222124649.52300-3-leon@kernel.orgSigned-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Prabhath Sajeepa authored
commit b5671afe upstream. Commit b0ffeb53 ("IB/mlx5: Fix iteration overrun in GSI qps") changed the way outstanding WRs are tracked for the GSI QP. But the fix did not cover the case when a call to ib_post_send() fails and updates index to track outstanding. Since the prior commmit outstanding_pi should not be bounded otherwise the loop generate_completions() will fail. Fixes: b0ffeb53 ("IB/mlx5: Fix iteration overrun in GSI qps") Link: https://lore.kernel.org/r/1576195889-23527-1-git-send-email-psajeepa@purestorage.comSigned-off-by: Prabhath Sajeepa <psajeepa@purestorage.com> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit fe06bf3d upstream. Clang warns: ../drivers/net/ethernet/dec/tulip/uli526x.c:1812:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] switch (mode) { ^ ../drivers/net/ethernet/dec/tulip/uli526x.c:1809:2: note: previous statement is here if (cr6set) ^ 1 warning generated. ../drivers/net/ethernet/dec/tulip/dmfe.c:2217:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] switch(mode) { ^ ../drivers/net/ethernet/dec/tulip/dmfe.c:2214:2: note: previous statement is here if (cr6set) ^ 1 warning generated. This warning occurs because there is a space before the tab on these lines. Remove them so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. While we are here, adjust the default block in dmfe_init_module to have a proper break between the label and assignment and add a space between the switch and opening parentheses to avoid a checkpatch warning. Fixes: e1c3e501 ("[PATCH] initialisation cleanup for ULI526x-net-driver") Link: https://github.com/ClangBuiltLinux/linux/issues/795Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit 5c61e223 upstream. Clang warns: ../drivers/net/ethernet/smsc/smc911x.c:939:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] if (!lp->ctl_rfduplx) ^ ../drivers/net/ethernet/smsc/smc911x.c:936:2: note: previous statement is here if (lp->ctl_rspeed != 100) ^ 1 warning generated. This warning occurs because there is a space after the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 0a0c72c9 ("[PATCH] RE: [PATCH 1/1] net driver: Add support for SMSC LAN911x line of ethernet chips") Link: https://github.com/ClangBuiltLinux/linux/issues/796Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit 08cbc75f upstream. Clang warns: ../drivers/net/ppp/ppp_async.c:877:6: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] ap->rpkt = skb; ^ ../drivers/net/ppp/ppp_async.c:875:5: note: previous statement is here if (!skb) ^ 1 warning generated. This warning occurs because there is a space before the tab on this line. Clean up this entire block's indentation so that it is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 6722e78c ("[PPP]: handle misaligned accesses") Link: https://github.com/ClangBuiltLinux/linux/issues/800Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit 50808326 upstream. Clang warns ../drivers/nfc/pn544/pn544.c:696:4: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] return nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE, ^ ../drivers/nfc/pn544/pn544.c:692:3: note: previous statement is here if (target->nfcid1_len != 4 && target->nfcid1_len != 7 && ^ 1 warning generated. This warning occurs because there is a space after the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: da052850 ("NFC: Add pn544 presence check for different targets") Link: https://github.com/ClangBuiltLinux/linux/issues/814Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit 251e3cb1 upstream. Clang warns: ../drivers/gpu/drm/msm/disp/mdp4/mdp4_dsi_encoder.c:124:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] mdp4_crtc_set_config(encoder->crtc, ^ ../drivers/gpu/drm/msm/disp/mdp4/mdp4_dsi_encoder.c:121:2: note: previous statement is here if (mdp4_dsi_encoder->enabled) ^ This warning occurs because there is a space after the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 776638e7 ("drm/msm/dsi: Add a mdp4 encoder for DSI") Link: https://github.com/ClangBuiltLinux/linux/issues/792Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit c3aae14e upstream. Clang warns: ../arch/powerpc/boot/4xx.c:231:3: warning: misleading indentation; statement is not part of the previous 'else' [-Wmisleading-indentation] val = SDRAM0_READ(DDR0_42); ^ ../arch/powerpc/boot/4xx.c:227:2: note: previous statement is here else ^ This is because there is a space at the beginning of this line; remove it so that the indentation is consistent according to the Linux kernel coding style and clang no longer warns. Fixes: d23f5099 ("[POWERPC] 4xx: Adds decoding of 440SPE memory size to boot wrapper library") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://github.com/ClangBuiltLinux/linux/issues/780 Link: https://lore.kernel.org/r/20191209200338.12546-1-natechancellor@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit d9e98668 upstream. Clang warns: ../fs/ext2/super.c:1076:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - ^ ../fs/ext2/super.c:1074:2: note: previous statement is here if (EXT2_BLOCKS_PER_GROUP(sb) == 0) ^ 1 warning generated. This warning occurs because there is a space before the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 41f04d85 ("[PATCH] ext2: fix mounts at 16T") Link: https://github.com/ClangBuiltLinux/linux/issues/827 Link: https://lore.kernel.org/r/20191218031930.31393-1-natechancellor@gmail.comSigned-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit a89806c9 upstream. Clang warns: ../drivers/phy/qualcomm/phy-qcom-apq8064-sata.c:83:4: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] usleep_range(DELAY_INTERVAL_US, DELAY_INTERVAL_US + 50); ^ ../drivers/phy/qualcomm/phy-qcom-apq8064-sata.c:80:3: note: previous statement is here if (readl_relaxed(addr) & mask) ^ 1 warning generated. This warning occurs because there is a space after the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 1de990d8 ("phy: qcom: Add driver for QCOM APQ8064 SATA PHY") Link: https://github.com/ClangBuiltLinux/linux/issues/816Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Asutosh Das authored
commit 24366c2a upstream. bkops level should be rechecked upon receiving an exception. Currently the level is being cached and never updated. Update bkops each time the level is checked. Also do not use the cached bkops level value if it is disabled and then enabled. Fixes: afdfff59 (scsi: ufs: handle non spec compliant bkops behaviour by device) Link: https://lore.kernel.org/r/1574751214-8321-2-git-send-email-cang@qti.qualcomm.comReviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit aa867973 upstream. Clang warns: ../drivers/scsi/qla4xxx/ql4_os.c:4148:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] if (ha->fw_dump) ^ ../drivers/scsi/qla4xxx/ql4_os.c:4144:2: note: previous statement is here if (ha->queues) ^ 1 warning generated. This warning occurs because there is a space after the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: 068237c8 ("[SCSI] qla4xxx: Capture minidump for ISP82XX on firmware failure") Link: https://github.com/ClangBuiltLinux/linux/issues/819 Link: https://lore.kernel.org/r/20191218015252.20890-1-natechancellor@gmail.comAcked-by: Manish Rangankar <mrangankar@marvell.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nathan Chancellor authored
commit a808a04c upstream. Clang warns: ../drivers/scsi/csiostor/csio_scsi.c:1386:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] csio_lnodes_exit(hw, 1); ^ ../drivers/scsi/csiostor/csio_scsi.c:1382:2: note: previous statement is here if (*buf != '1') ^ 1 warning generated. This warning occurs because there is a space after the tab on this line. Remove it so that the indentation is consistent with the Linux kernel coding style and clang no longer warns. Fixes: a3667aae ("[SCSI] csiostor: Chelsio FCoE offload driver") Link: https://github.com/ClangBuiltLinux/linux/issues/818 Link: https://lore.kernel.org/r/20191218014726.8455-1-natechancellor@gmail.comSigned-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Bart Van Assche authored
commit 3f5f7335 upstream. Since qla82xx_get_fw_size() returns a number in CPU-endian format, change its return type from __le32 into u32. This patch does not change any functionality. Fixes: 9c2b2975 ("[SCSI] qla2xxx: Support for loading Unified ROM Image (URI) format firmware file.") Cc: Himanshu Madhani <hmadhani@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Link: https://lore.kernel.org/r/20191219004905.39586-1-bvanassche@acm.orgReviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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