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2022-01-24microblaze/PCI: Remove pci_phys_mem_access_prot() dead codeBjorn Helgaas2-53/+0
pci_phys_mem_access_prot() is defined but never used. Remove it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20220121205150.1151607-1-helgaas@kernel.org Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2022-01-24microblaze: add const to of_device_idXiang wangx1-1/+1
struct of_device_id should normally be const. Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com> Link: https://lore.kernel.org/r/20211212141248.7134-1-wangxiang@cdjrlc.com Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2022-01-24microblaze: fix typo in a commentJason Wang1-1/+1
The double `was' is repeated in a comment. Consequently, remove one `was' from the comment. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Link: https://lore.kernel.org/r/20211128034823.6930-1-wangborong@cdjrlc.com Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2022-01-24arm64: vdso: Fix "no previous prototype" warningVincenzo Frascino1-1/+4
If compiling the arm64 kernel with W=1 the following warning is produced: | arch/arm64/kernel/vdso/vgettimeofday.c:9:5: error: no previous prototype for ‘__kernel_clock_gettime’ [-Werror=missing-prototypes] | 9 | int __kernel_clock_gettime(clockid_t clock, | | ^~~~~~~~~~~~~~~~~~~~~~ | arch/arm64/kernel/vdso/vgettimeofday.c:15:5: error: no previous prototype for ‘__kernel_gettimeofday’ [-Werror=missing-prototypes] | 15 | int __kernel_gettimeofday(struct __kernel_old_timeval *tv, | | ^~~~~~~~~~~~~~~~~~~~~ | arch/arm64/kernel/vdso/vgettimeofday.c:21:5: error: no previous prototype for ‘__kernel_clock_getres’ [-Werror=missing-prototypes] | 21 | int __kernel_clock_getres(clockid_t clock_id, | | ^~~~~~~~~~~~~~~~~~~~~ This patch removes "-Wmissing-prototypes" and "-Wmissing-declarations" compilers flags from the compilation of vgettimeofday.c to make possible to build the kernel with CONFIG_WERROR enabled. Cc: Will Deacon <will@kernel.org> Reported-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Tested-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://lore.kernel.org/r/20220121121234.47273-1-vincenzo.frascino@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-01-24net/smc: Transitional solution for clcsock race issueWen Gu1-12/+51
We encountered a crash in smc_setsockopt() and it is caused by accessing smc->clcsock after clcsock was released. BUG: kernel NULL pointer dereference, address: 0000000000000020 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 50309 Comm: nginx Kdump: loaded Tainted: G E 5.16.0-rc4+ #53 RIP: 0010:smc_setsockopt+0x59/0x280 [smc] Call Trace: <TASK> __sys_setsockopt+0xfc/0x190 __x64_sys_setsockopt+0x20/0x30 do_syscall_64+0x34/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f16ba83918e </TASK> This patch tries to fix it by holding clcsock_release_lock and checking whether clcsock has already been released before access. In case that a crash of the same reason happens in smc_getsockopt() or smc_switch_to_fallback(), this patch also checkes smc->clcsock in them too. And the caller of smc_switch_to_fallback() will identify whether fallback succeeds according to the return value. Fixes: fd57770dd198 ("net/smc: wait for pending work before clcsock release_sock") Link: https://lore.kernel.org/lkml/5dd7ffd1-28e2-24cc-9442-1defec27375e@linux.ibm.com/T/ Signed-off-by: Wen Gu <guwen@linux.alibaba.com> Acked-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24ibmvnic: remove unused ->wait_capabilitySukadev Bhattiprolu2-25/+14
With previous bug fix, ->wait_capability flag is no longer needed and can be removed. Fixes: 249168ad07cd ("ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs") Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com> Reviewed-by: Dany Madden <drt@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24ibmvnic: don't spin in taskletSukadev Bhattiprolu1-6/+0
ibmvnic_tasklet() continuously spins waiting for responses to all capability requests. It does this to avoid encountering an error during initialization of the vnic. However if there is a bug in the VIOS and we do not receive a response to one or more queries the tasklet ends up spinning continuously leading to hard lock ups. If we fail to receive a message from the VIOS it is reasonable to timeout the login attempt rather than spin indefinitely in the tasklet. Fixes: 249168ad07cd ("ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs") Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com> Reviewed-by: Dany Madden <drt@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24ibmvnic: init ->running_cap_crqs earlySukadev Bhattiprolu1-35/+71
We use ->running_cap_crqs to determine when the ibmvnic_tasklet() should send out the next protocol message type. i.e when we get back responses to all our QUERY_CAPABILITY CRQs we send out REQUEST_CAPABILITY crqs. Similiary, when we get responses to all the REQUEST_CAPABILITY crqs, we send out the QUERY_IP_OFFLOAD CRQ. We currently increment ->running_cap_crqs as we send out each CRQ and have the ibmvnic_tasklet() send out the next message type, when this running_cap_crqs count drops to 0. This assumes that all the CRQs of the current type were sent out before the count drops to 0. However it is possible that we send out say 6 CRQs, get preempted and receive all the 6 responses before we send out the remaining CRQs. This can result in ->running_cap_crqs count dropping to zero before all messages of the current type were sent and we end up sending the next protocol message too early. Instead initialize the ->running_cap_crqs upfront so the tasklet will only send the next protocol message after all responses are received. Use the cap_reqs local variable to also detect any discrepancy (either now or in future) in the number of capability requests we actually send. Currently only send_query_cap() is affected by this behavior (of sending next message early) since it is called from the worker thread (during reset) and from application thread (during ->ndo_open()) and they can be preempted. send_request_cap() is only called from the tasklet which processes CRQ responses sequentially, is not be affected. But to maintain the existing symmtery with send_query_capability() we update send_request_capability() also. Fixes: 249168ad07cd ("ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs") Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com> Reviewed-by: Dany Madden <drt@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24ibmvnic: Allow extra failures before disablingSukadev Bhattiprolu1-4/+17
If auto-priority-failover (APF) is enabled and there are at least two backing devices of different priorities, some resets like fail-over, change-param etc can cause at least two back to back failovers. (Failover from high priority backing device to lower priority one and then back to the higher priority one if that is still functional). Depending on the timimg of the two failovers it is possible to trigger a "hard" reset and for the hard reset to fail due to failovers. When this occurs, the driver assumes that the network is unstable and disables the VNIC for a 60-second "settling time". This in turn can cause the ethtool command to fail with "No such device" while the vnic automatically recovers a little while later. Given that it's possible to have two back to back failures, allow for extra failures before disabling the vnic for the settling time. Fixes: f15fde9d47b8 ("ibmvnic: delay next reset if hard reset fails") Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com> Reviewed-by: Dany Madden <drt@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24drm/i915: nuke local versions of WARN_ON/WARN_ON_ONCEJani Nikula1-15/+0
In general, we should avoid redefining kernel macros like this. It can get confusing, and what gets used will depend on whether the header is included or not. Moreover, we should prefer drm_WARN_ON() and drm_WARN_ON_ONCE() anyway, which include the stringified error condition in the message. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220121132957.3778555-1-jani.nikula@intel.com
2022-01-24ipv4: fix ip option filtering for locally generated fragmentsJakub Kicinski1-3/+12
During IP fragmentation we sanitize IP options. This means overwriting options which should not be copied with NOPs. Only the first fragment has the original, full options. ip_fraglist_prepare() copies the IP header and options from previous fragment to the next one. Commit 19c3401a917b ("net: ipv4: place control buffer handling away from fragmentation iterators") moved sanitizing options before ip_fraglist_prepare() which means options are sanitized and then overwritten again with the old values. Fixing this is not enough, however, nor did the sanitization work prior to aforementioned commit. ip_options_fragment() (which does the sanitization) uses ipcb->opt.optlen for the length of the options. ipcb->opt of fragments is not populated (it's 0), only the head skb has the state properly built. So even when called at the right time ip_options_fragment() does nothing. This seems to date back all the way to v2.5.44 when the fast path for pre-fragmented skbs had been introduced. Prior to that ip_options_build() would have been called for every fragment (in fact ever since v2.5.44 the fragmentation handing in ip_options_build() has been dead code, I'll clean it up in -next). In the original patch (see Link) caixf mentions fixing the handling for fragments other than the second one, but I'm not sure how _any_ fragment could have had their options sanitized with the code as it stood. Tested with python (MTU on lo lowered to 1000 to force fragmentation): import socket s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.setsockopt(socket.IPPROTO_IP, socket.IP_OPTIONS, bytearray([7,4,5,192, 20|0x80,4,1,0])) s.sendto(b'1'*2000, ('127.0.0.1', 1234)) Before: IP (tos 0x0, ttl 64, id 1053, offset 0, flags [+], proto UDP (17), length 996, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256)) localhost.36500 > localhost.search-agent: UDP, length 2000 IP (tos 0x0, ttl 64, id 1053, offset 968, flags [+], proto UDP (17), length 996, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256)) localhost > localhost: udp IP (tos 0x0, ttl 64, id 1053, offset 1936, flags [none], proto UDP (17), length 100, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256)) localhost > localhost: udp After: IP (tos 0x0, ttl 96, id 42549, offset 0, flags [+], proto UDP (17), length 996, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256)) localhost.51607 > localhost.search-agent: UDP, bad length 2000 > 960 IP (tos 0x0, ttl 96, id 42549, offset 968, flags [+], proto UDP (17), length 996, options (NOP,NOP,NOP,NOP,RA value 256)) localhost > localhost: udp IP (tos 0x0, ttl 96, id 42549, offset 1936, flags [none], proto UDP (17), length 100, options (NOP,NOP,NOP,NOP,RA value 256)) localhost > localhost: udp RA (20 | 0x80) is now copied as expected, RR (7) is "NOPed out". Link: https://lore.kernel.org/netdev/20220107080559.122713-1-ooppublic@163.com/ Fixes: 19c3401a917b ("net: ipv4: place control buffer handling away from fragmentation iterators") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: caixf <ooppublic@163.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24optee: add error checks in optee_ffa_do_call_with_arg()Jens Wiklander1-3/+12
Adds error checking in optee_ffa_do_call_with_arg() for correctness. Fixes: 4615e5a34b95 ("optee: add FF-A support") Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-01-24net-procfs: show net devices bound packet typesJianguo Wu1-3/+32
After commit:7866a621043f ("dev: add per net_device packet type chains"), we can not get packet types that are bound to a specified net device by /proc/net/ptype, this patch fix the regression. Run "tcpdump -i ens192 udp -nns0" Before and after apply this patch: Before: [root@localhost ~]# cat /proc/net/ptype Type Device Function 0800 ip_rcv 0806 arp_rcv 86dd ipv6_rcv After: [root@localhost ~]# cat /proc/net/ptype Type Device Function ALL ens192 tpacket_rcv 0800 ip_rcv 0806 arp_rcv 86dd ipv6_rcv v1 -> v2: - fix the regression rather than adding new /proc API as suggested by Stephen Hemminger. Fixes: 7866a621043f ("dev: add per net_device packet type chains") Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24bonding: use rcu_dereference_rtnl when get bonding active slaveHangbin Liu2-5/+1
bond_option_active_slave_get_rcu() should not be used in rtnl_mutex as it use rcu_dereference(). Replace to rcu_dereference_rtnl() so we also can use this function in rtnl protected context. With this update, we can rmeove the rcu_read_lock/unlock in bonding .ndo_eth_ioctl and .get_ts_info. Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com> Fixes: 94dd016ae538 ("bond: pass get_ts_info and SIOC[SG]HWTSTAMP ioctl to active device") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24tee: optee: do not check memref size on return from Secure WorldJerome Forissier1-10/+0
Commit c650b8dc7a79 ("tee: optee: do not check memref size on return from Secure World") was mistakenly lost in commit 4602c5842f64 ("optee: refactor driver with internal callbacks"). Remove the unwanted code again. Fixes: 4602c5842f64 ("optee: refactor driver with internal callbacks") Signed-off-by: Jerome Forissier <jerome@forissier.org> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-01-24optee: Use bitmap_free() to free bitmapChristophe JAILLET1-1/+1
kfree() and bitmap_free() are the same. But using the latter is more consistent when freeing memory allocated with bitmap_zalloc(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-01-24net: sfp: ignore disabled SFP nodeMarek Behún1-0/+5
Commit ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") added code which finds SFP bus DT node even if the node is disabled with status = "disabled". Because of this, when phylink is created, it ends with non-null .sfp_bus member, even though the SFP module is not probed (because the node is disabled). We need to ignore disabled SFP bus node. Fixes: ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") Signed-off-by: Marek Behún <kabel@kernel.org> Cc: stable@vger.kernel.org # 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer") Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-24drm/i915: fix header file inclusion for might_alloc()Andi Shyti1-1/+1
Replace "linux/slab.h" with "linux/sched/mm.h" header inclusion as the first is not required, while the second, if not included, prodouces the following error: drivers/gpu/drm/i915/i915_vma_resource.c: In function ‘i915_vma_resource_bind_dep_await’: drivers/gpu/drm/i915/i915_vma_resource.c:381:9: error: implicit declaration of function ‘might_alloc’; did you mean ‘might_lock’? [-Werror=implicit-function-declaration] 381 | might_alloc(gfp); | ^~~~~~~~~~~ | might_lock Fixes: 2f6b90da9192 ("drm/i915: Use vma resources for async unbinding") Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220124094418.2661-1-andi.shyti@linux.intel.com
2022-01-24drm/amdgpu: use ttm_resource_manager_debugChristian König1-5/+5
Instead of calling the debug operation directly. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211124124430.20859-10-christian.koenig@amd.com
2022-01-24drm/radeon: use ttm_resource_manager_debugChristian König1-2/+2
Instead of calling the debug operation directly. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211124124430.20859-8-christian.koenig@amd.com
2022-01-24platform/x86: amd-pmc: Correct usage of SMU versionMario Limonciello1-5/+8
Yellow carp has been outputting versions like `1093.24.0`, but this is supposed to be 69.24.0. That is the MSB is being interpreted incorrectly. The MSB is not part of the major version, but has generally been treated that way thus far. It's actually the program, and used to distinguish between two programs from a similar family but different codebase. Link: https://patchwork.freedesktop.org/patch/469993/ Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20220120174439.12770-1-mario.limonciello@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24drm/i915: Nuke dg2_ddi_pre_enable_dp()Ville Syrjälä1-113/+4
dg2_ddi_pre_enable_dp() has outlived its usefulness so eliminate it. The one thing that tgl_ddi_pre_enable_dp() is missing that we need is intel_ddi_config_transcoder_dp2(). So we'll bring that over. tgl_ddi_pre_enable_dp() does also have a few things that dg2_ddi_pre_enable_dp() didn't have: - icl_program_mg_dp_mode() -> nop due to intel_phy_is_tc()==false on DG2 - intel_ddi_power_up_lanes() -> nop due to intel_phy_is_combo()==false on DG2 - intel_ddi_mso_configure() -> only matters for MSO panels Another slight difference is that dg2_ddi_pre_enable_dp() was missing a bigjoiner check around intel_dsc_enable(), which tgl_ddi_pre_enable_dp() does have. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220119122150.12941-1-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-01-24soc: renesas: Identify RZ/V2L SoCBiju Das2-0/+18
Add support for identifying the RZ/V2L (R9A07G054) SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20220110134659.30424-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24dt-bindings: power: renesas,rzg2l-sysc: Document RZ/V2L SoCBiju Das1-3/+4
Add DT binding documentation for the SYSC controller found on the RZ/V2L SoC. This SYSC controller is almost identical to the one found on the RZ/G2L SoC, the only difference being that SYSC on RZ/V2L has an additional register to control the DRP-AI. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220110134659.30424-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24dt-bindings: arm: renesas: Document Renesas RZ/V2L SoC on SMARC EVKBiju Das1-0/+9
Document the Renesas SMARC EVK board which is based on the Renesas RZ/V2L (R9A07G054) SoC. The SMARC EVK consists of an RZ/V2L SoM module and a SMARC carrier board. The SoM module sits on top of the carrier board. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20211221094717.16187-2-prabhakar.mahadev-lad.rj@bp.renesas.com Link: https://lore.kernel.org/r/20211221094717.16187-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24platform/x86: asus-tf103c-dock: Make 2 global structs staticHans de Goede1-2/+2
tf103c_dock_hid_ll_driver and tf103c_dock_pm_ops are not used outside of the driver, make them both static. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220117112644.260168-2-hdegoede@redhat.com
2022-01-24platform/x86: amd-pmc: Make amd_pmc_stb_debugfs_fops staticHans de Goede1-1/+1
amd_pmc_stb_debugfs_fops is not used outside of amd-pmc.c, make it static. Cc: Sanket Goswami <Sanket.Goswami@amd.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220117112644.260168-1-hdegoede@redhat.com
2022-01-24platform/x86: ISST: Fix possible circular locking dependency detectedSrinivas Pandruvada1-34/+63
As reported: [ 256.104522] ====================================================== [ 256.113783] WARNING: possible circular locking dependency detected [ 256.120093] 5.16.0-rc6-yocto-standard+ #99 Not tainted [ 256.125362] ------------------------------------------------------ [ 256.131673] intel-speed-sel/844 is trying to acquire lock: [ 256.137290] ffffffffc036f0d0 (punit_misc_dev_lock){+.+.}-{3:3}, at: isst_if_open+0x18/0x90 [isst_if_common] [ 256.147171] [ 256.147171] but task is already holding lock: [ 256.153135] ffffffff8ee7cb50 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x2a/0x170 [ 256.160407] [ 256.160407] which lock already depends on the new lock. [ 256.160407] [ 256.168712] [ 256.168712] the existing dependency chain (in reverse order) is: [ 256.176327] [ 256.176327] -> #1 (misc_mtx){+.+.}-{3:3}: [ 256.181946] lock_acquire+0x1e6/0x330 [ 256.186265] __mutex_lock+0x9b/0x9b0 [ 256.190497] mutex_lock_nested+0x1b/0x20 [ 256.195075] misc_register+0x32/0x1a0 [ 256.199390] isst_if_cdev_register+0x65/0x180 [isst_if_common] [ 256.205878] isst_if_probe+0x144/0x16e [isst_if_mmio] ... [ 256.241976] [ 256.241976] -> #0 (punit_misc_dev_lock){+.+.}-{3:3}: [ 256.248552] validate_chain+0xbc6/0x1750 [ 256.253131] __lock_acquire+0x88c/0xc10 [ 256.257618] lock_acquire+0x1e6/0x330 [ 256.261933] __mutex_lock+0x9b/0x9b0 [ 256.266165] mutex_lock_nested+0x1b/0x20 [ 256.270739] isst_if_open+0x18/0x90 [isst_if_common] [ 256.276356] misc_open+0x100/0x170 [ 256.280409] chrdev_open+0xa5/0x1e0 ... The call sequence suggested that misc_device /dev file can be opened before misc device is yet to be registered, which is done only once. Here punit_misc_dev_lock was used as common lock, to protect the registration by multiple ISST HW drivers, one time setup, prevent duplicate registry of misc device and prevent load/unload when device is open. We can split into locks: - One which just prevent duplicate call to misc_register() and one time setup. Also never call again if the misc_register() failed or required one time setup is failed. This lock is not shared with any misc device callbacks. - The other lock protects registry, load and unload of HW drivers. Sequence in isst_if_cdev_register() - Register callbacks under punit_misc_dev_open_lock - Call isst_misc_reg() which registers misc_device on the first registry which is under punit_misc_dev_reg_lock, which is not shared with callbacks. Sequence in isst_if_cdev_unregister Just opposite of isst_if_cdev_register Reported-and-tested-by: Liwei Song <liwei.song@windriver.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20220112022521.54669-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24platform/x86: intel_crystal_cove_charger: Fix IRQ masking / unmaskingHans de Goede1-13/+13
The driver as originally submitted accidentally relied on Android having run before and Android having unmasked the 2nd level IRQ-mask for the charger IRQ. This worked since these are PMIC registers which are only reset when the battery is fully drained or disconnected. Fix the charger IRQ no longer working after loss of battery power by properly setting the 2nd level IRQ-mask for the charger IRQ. Note this removes the need to enable/disable our parent IRQ which just sets the mask bit in the 1st level IRQ-mask register, setting one of the 2 level masks is enough to stop the IRQ from getting reported. Fixes: 761db353d9e2 ("platform/x86: Add intel_crystal_cove_charger driver") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220111232309.377642-1-hdegoede@redhat.com
2022-01-24platform/x86: thinkpad_acpi: Add quirk for ThinkPads without a fanAlexander Kobel1-3/+10
Some ThinkPad models, like the X1 Tablet 1st and 2nd Gen, are passively cooled without any fan. Currently, an entry in /proc/acpi/ibm/fan is nevertheless created, and misleadingly shows status: enabled speed: 65535 level: auto This patch adds a TPACPI_FAN_NOFAN quirk definition and corresponding handling to not initialize a fan interface at all. For the time being, the quirk is only applied for X1 Tablet 2nd Gen (types 20JB, 20JC; EC N1O...); further models (such as Gen1, types 20GG and 20GH) can be added easily once tested. Tested on a 20JCS00C00, BIOS N1OET58W (1.43), EC N1OHT34W. Signed-off-by: Alexander Kobel <a-kobel@a-kobel.de> Link: https://lore.kernel.org/r/12d4b825-a2b9-8cb7-6ed3-db4d66f46a60@a-kobel.de Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24platform/x86: touchscreen_dmi: Add info for the RWC NANOTE P8 AY07J 2-in-1Yuka Kawajiri1-0/+24
Add touchscreen info for RWC NANOTE P8 (AY07J) 2-in-1. Signed-off-by: Yuka Kawajiri <yukx00@gmail.com> Link: https://lore.kernel.org/r/20220111154019.4599-1-yukx00@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24platform/surface: Reinstate platform dependencyGeert Uytterhoeven1-0/+1
Microsoft Surface platform-specific devices are only present on Microsoft Surface platforms, which are currently limited to arm64 and x86. Hence add a dependency on ARM64 || X86, to prevent asking the user about drivers for these devices when configuring a kernel for an architecture that does not support Microsoft Surface platforms. Fixes: 272479928172edf0 ("platform: surface: Propagate ACPI Dependency") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20220115140849.269479-1-geert@linux-m68k.org Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24platform/x86: x86-android-tablets: Trivial typo fix for MODULE_AUTHORLubomir Rintel1-1/+1
Bring balance to the quoting of Hans' e-mail address. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Link: https://lore.kernel.org/r/20220110063629.273364-1-lkundrak@v3.sk Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24platform/x86: x86-android-tablets: Fix the buttons on CZC P10T tabletLubomir Rintel1-0/+51
This switches the P10T tablet to "Android" mode, where the Home button sends a single sancode instead of a Windows-specific key combination and the other button doesn't disable the Wi-Fi. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Link: https://lore.kernel.org/r/20220110063512.273252-1-lkundrak@v3.sk Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-01-24platform/x86: x86-android-tablets: Constify the gpiod_lookup_tables arraysHans de Goede1-5/+5
The individual gpiod_lookup_table structs cannot be const because they contain a list-head which gets used when registering them. But the array of pointers to the gpiod_lookup_table-s used by a board can be const, constify these. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-By: Lubomir Rintel <lkundrak@V3.sk> Link: https://lore.kernel.org/r/20220110103952.48760-3-hdegoede@redhat.com
2022-01-24platform/x86: x86-android-tablets: Add an init() callback to struct x86_dev_infoHans de Goede1-0/+15
Add an init() callback to struct x86_dev_info, board descriptions can use this to do some custom setup before registering the i2c_clients, platform- devices and servdevs. Also add an exit() callback to also allow for cleanup of the custom setup. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-By: Lubomir Rintel <lkundrak@V3.sk> Link: https://lore.kernel.org/r/20220110103952.48760-2-hdegoede@redhat.com
2022-01-24platform/x86: x86-android-tablets: Add support for disabling ACPI _AEI handlersHans de Goede1-2/+21
Some of the broken DSDTs on these devices often also include broken / wrong _AEI (ACPI Event Interrupt) handlers, which can cause e.g. interrupt storms by listening to a floating GPIO pin. Add support for disabling these and disable them on the Asus ME176C and TF103C tablets. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-By: Lubomir Rintel <lkundrak@V3.sk> Link: https://lore.kernel.org/r/20220110103952.48760-1-hdegoede@redhat.com
2022-01-24platform/x86: x86-android-tablets: Correct crystal_cove_charger module nameHans de Goede1-2/+2
The module was renamed to intel_crystal_cove_charger before it was merged, updated bq24190_modules to match. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220111100708.38585-1-hdegoede@redhat.com
2022-01-24KVM: arm64: Use shadow SPSR_EL1 when injecting exceptions on !VHEMarc Zyngier1-1/+4
Injecting an exception into a guest with non-VHE is risky business. Instead of writing in the shadow register for the switch code to restore it, we override the CPU register instead. Which gets overriden a few instructions later by said restore code. The result is that although the guest correctly gets the exception, it will return to the original context in some random state, depending on what was there the first place... Boo. Fix the issue by writing to the shadow register. The original code is absolutely fine on VHE, as the state is already loaded, and writing to the shadow register in that case would actually be a bug. Fixes: bb666c472ca2 ("KVM: arm64: Inject AArch64 exceptions from HYP") Cc: stable@vger.kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Fuad Tabba <tabba@google.com> Link: https://lore.kernel.org/r/20220121184207.423426-1-maz@kernel.org
2022-01-24drm/i915/hdmi: Clean up TMDS clock limit exceeding user mode handlingVille Syrjälä3-47/+62
Currently we just use all the hdmi_deep_color_possible() stuff to compute whether deep color is possible, and leave the 8bpc case to do its own thing. That doesn't mesh super well with 4:2:0 handling because we might end up going for 8bpc RGB without considering that it's essentially illegal and we could instead go for a legal 4:2:0 config. So let's run through all the clock checks even for 8bpc first. If we've fully exhausted all options only then do we re-run the computation for 8bpc while ignoring the downstream TMDS clock limits. This will guarantee that if there's a config that respects all limits we will find it, and if there is not we still allow the user to override the mode manually. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211015133921.4609-7-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-01-24drm/i915: Clean up pre-skl primary plane registersVille Syrjälä6-116/+128
Use REG_BIT() & co. for the pre-skl primary plane registers. Also give everything a consistent namespace. v2: s/DSP/DISP/ to avoid confusion (José) Use DISP_WIDTH rather than DISP_POS_X for DSPSIZE (José) Deal with gvt Cc: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220121113036.23240-2-ville.syrjala@linux.intel.com Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
2022-01-24arm64: dts: renesas: ulcb-kf: Add KF HDMI outputNikita Yushchenko1-0/+94
This patch adds nodes needed to enable DRM video output over the HDMI connector located on the Kingfisher board. Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com> Link: https://lore.kernel.org/r/20211225115308.2152364-1-nikita.yoush@cogentembedded.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: r8a77961: Add lvds0 device nodeNikita Yushchenko1-0/+27
Add the missing lvds0 node for the R-Car M3-W+ SoC. Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20211224052309.1997096-3-nikita.yoush@cogentembedded.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: r8a779f0: Add sys-dmac nodesYoshihiro Shimoda1-0/+70
Add SYS-DMAC nodes for r8a779f0. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu> Link: https://lore.kernel.org/r/20211221052722.597407-4-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24ARM: dts: r9a06g032: Describe the NAND controllerMiquel Raynal1-0/+11
Describe the NAND controller embedded in r9a06g032 SoCs. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20211217142033.353599-5-miquel.raynal@bootlin.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: Add GMSL cameras .dtsiKieran Bingham1-0/+332
Describe the FAKRA connector available on Eagle and Condor boards that allow to connect GMSL camera modules such as IMI RDACM20 and RDACM21. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20211216163439.139579-7-jacopo+renesas@jmondi.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: eagle: Enable MAX9286Kieran Bingham1-0/+102
Enable the MAX9286 GMSL deserializer on the Eagle-V3M board. Connected cameras should be defined in a device-tree overlay or included after these definitions. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20211216163439.139579-6-jacopo+renesas@jmondi.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: condor: Enable MAX9286Jacopo Mondi1-0/+191
Enable the MAX9286 GMSL deserializers on Condor-V3H board. Connected cameras should be defined in a device-tree overlay or included after these definitions. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20211216163439.139579-5-jacopo+renesas@jmondi.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: Add initial device tree for RZ/G2LC SMARC EVKBiju Das4-0/+216
Add basic support for the RZ/G2LC SMARC EVK (based on R9A07G044C2): - memory - External input clock - SCIF - GbEthernet - Audio Clock It shares the same carrier board with RZ/G2L, but the pin mapping is different. Disable the device nodes which are not tested and delete the corresponding pinctrl definitions. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20211216114305.5842-4-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-01-24arm64: dts: renesas: Add initial DTSI for RZ/G2LC SoCBiju Das2-0/+52
The RZ/G2L and RZ/G2LC SoCs are similar and they share the same DEVID. RZ/G2LC has fewer peripherals compared to RZ/G2L. SSI (3 channels vs 4 channels) GbEthernet (1 channel vs 2 channels) SCIFA (4 channels vs 5 channels) ADC is only supported in RZ/G2L. Add the initial DTSI for the RZ/G2LC SoC by reusing the common r9a07g044.dtsi file with unsupported device nodes deleted in the below SoC specific dtsi files. r9a07g044c1.dtsi => RZ/G2LC R9A07G044C1 SoC specific parts r9a07g044c2.dtsi => RZ/G2LC R9A07G044C2 SoC specific parts Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20211216114305.5842-3-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>