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2020-03-26Merge tag 'qcom-arm64-for-5.7' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/late Qualcomm ARM64 DT updates for v5.7 This brings initial support for the SM8250 and IPQ6018 platforms. SDM845 gets audio, PCIe and IP-accelerator support, and the interconnect providers are refactored. The Lenovo Yoga C630 has audio enabled and the DB845c has PCIe, analog audio and low-speed interfaces enabled. The SDM845 MTP has its display enabled and firmware location updated to match linux-firmware. SC7180 gains CPU topology and power properties. Interconnect providers, eMMC, SD-card, multimedia clocks, display, Bluetooth, Venus are added. Critical trip points are added as well as various fixes. For MSM8916 FastRPC support is added, ETM power management and reserved memory for Samsung A2015 are corrected. MSM8996 switches to generic QMP phy driver for its UFS support. MSM8998 temporarily disables part of Coresight to boot without clk_ignore_unused. CEQ for eMMC on QCS404 is enabled. Fixes throughout the platforms to fix binding compliance, correct compatibles for SDHCI nodes and add gpio-ranges. * tag 'qcom-arm64-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (56 commits) arm64: dts: qcom: sdm845-mtp: Relocate remoteproc firmware arm64: dts: sdm845: add IPA information arm64: dts: qcom: db845c: add analog audio support arm64: dts: qcom: sdm845: add pinctrl nodes for quat i2s arm64: dts: qcom: c630: Enable audio support arm64: dts: qcom: sdm845: add apr nodes arm64: dts: qcom: sdm845: add slimbus nodes arm64: dts: qcom: sc7180: Update reg names for SDHC arm64: dts: qcom: qcs404: Enable CQE support for eMMC arm64: dts: msm8916: Add fastrpc node arm64: dts: qcom: sm8250: Add sm8250 dts file arm64: dts: qcom: msm8998-mtp: Disable funnel 4 and 5 arm64: dts: qcom: db845c: add Low speed expansion i2c and spi nodes arm64: dts: qcom: apq8016-sbc: Remove wrong regulator supply arm64: dts: qcom: sc7180: Added critical trip point Thermal-zones node arm64: dts: qcom: msm8998: Fix cpu compatible arm64: dts: qcom: sc7180: Add OSM L3 interconnect provider arm64: dts: qcom: sdm845: Add OSM L3 interconnect provider arm64: dts: sc7180: Add interconnect provider DT nodes arm64: dts: qcom: msm8996: Use generic QMP driver for UFS ... Link: https://lore.kernel.org/r/20200318043823.GA470201@yoga Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-26drm/scheduler: fix rare NULL ptr raceYintian Tao
There is one one corner case at dma_fence_signal_locked which will raise the NULL pointer problem just like below. ->dma_fence_signal ->dma_fence_signal_locked ->test_and_set_bit here trigger dma_fence_release happen due to the zero of fence refcount. ->dma_fence_put ->dma_fence_release ->drm_sched_fence_release_scheduled ->call_rcu here make the union fled “cb_list” at finished fence to NULL because struct rcu_head contains two pointer which is same as struct list_head cb_list Therefore, to hold the reference of finished fence at drm_sched_process_job to prevent the null pointer during finished fence dma_fence_signal [ 732.912867] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 732.914815] #PF: supervisor write access in kernel mode [ 732.915731] #PF: error_code(0x0002) - not-present page [ 732.916621] PGD 0 P4D 0 [ 732.917072] Oops: 0002 [#1] SMP PTI [ 732.917682] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G OE 5.4.0-rc7 #1 [ 732.918980] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014 [ 732.920906] RIP: 0010:dma_fence_signal_locked+0x3e/0x100 [ 732.938569] Call Trace: [ 732.939003] <IRQ> [ 732.939364] dma_fence_signal+0x29/0x50 [ 732.940036] drm_sched_fence_finished+0x12/0x20 [gpu_sched] [ 732.940996] drm_sched_process_job+0x34/0xa0 [gpu_sched] [ 732.941910] dma_fence_signal_locked+0x85/0x100 [ 732.942692] dma_fence_signal+0x29/0x50 [ 732.943457] amdgpu_fence_process+0x99/0x120 [amdgpu] [ 732.944393] sdma_v4_0_process_trap_irq+0x81/0xa0 [amdgpu] v2: hold the finished fence at drm_sched_process_job instead of amdgpu_fence_process v3: resume the blank line Signed-off-by: Yintian Tao <yttao@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-26Merge tag 'omap-for-v5.7/ti-sysc-drop-pdata-ti81xx-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late Drop remaining legacy platform data for cpsw and edma With a non-critical clock fix for dm814x ethernet, we can update ti81xx for cpsw ethernet and edma to probe them with ti-sysc interconnect target module driver and device tree data. And we can drop the related remaining platform data for cpsw and edma. * tag 'omap-for-v5.7/ti-sysc-drop-pdata-ti81xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Drop legacy platform data for ti81xx edma ARM: dts: Configure interconnect target module for ti816x edma ARM: dts: Configure interconnect target module for dm814x tptc3 ARM: dts: Configure interconnect target module for dm814x tptc2 ARM: dts: Configure interconnect target module for dm814x tptc1 ARM: dts: Configure interconnect target module for dm814x tptc0 ARM: dts: Configure interconnect target module for dm814x tpcc ARM: OMAP2+: Drop legacy platform data for dm814x cpsw ARM: dts: Configure interconnect target module for dm814x cpsw clk: ti: Fix dm814x clkctrl for ethernet Link: https://lore.kernel.org/r/pull-1584575307-189595@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-26Merge tag 'omap-for-v5.7/ti-sysc-drop-pdata-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late Drop legacy platform data for omaps for v5.7 This series of changes continues dropping legacy platform data for omaps by updating devices to probe with ti-sysc interconnect target module driver: - Update omap4, omap5, am437x, and dra7 display subsystem (DSS) to probe with device tree data only - Update am335x, am437x and dra7 to probe EDMA to probe with device tree data only - Drop legacy platform data for am335x and am437x PRUSS as the current code just keeps the devices in reset - Drop legacy platform data for omap4 DSP and IPU as the current code just keeps the devices in reset - Configure am437x and dra7 PRU-ICSS to probe with device tree data For the dropped omap4 DSP and IPU platform data, there will be patches coming later on to configure the accelerators using the omap remoteproc bindings so hopefully folks can actually use these devices eventually. * tag 'omap-for-v5.7/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (56 commits) ARM: OMAP2+: Drop legacy platform data for dra7 edma ARM: OMAP2+: Drop legacy platform data for am3 and am4 edma ARM: dts: Configure interconnect target module for dra7 tptc1 ARM: dts: Configure interconnect target module for dra7 tptc0 ARM: dts: Configure interconnect target module for dra7 tpcc ARM: dts: Configure interconnect target module for am4 tptc2 ARM: dts: Configure interconnect target module for am4 tptc1 ARM: dts: Configure interconnect target module for am4 tptc0 ARM: dts: Configure interconnect target module for am4 tpcc ARM: dts: Configure interconnect target module for am3 tptc2 ARM: dts: Configure interconnect target module for am3 tptc1 ARM: dts: Configure interconnect target module for am3 tptc0 ARM: dts: Configure interconnect target module for am3 tpcc ARM: dts: dra7: Add PRU-ICSS interconnect target-module nodes ARM: dts: AM4372: Add the PRU-ICSS interconnect target-module node ARM: dts: AM33xx-l4: Update PRUSS interconnect target-module node ARM: OMAP2+: Drop legacy platform data for am437x DSS ARM: OMAP2+: Drop legacy platform data for dra7 DSS ARM: OMAP2+: Drop legacy platform data for omap5 DSS ARM: OMAP2+: Drop legacy platform data for omap4 dss ... Link: https://lore.kernel.org/r/pull-1583858385-416921@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-27powerpc/smp: Use IS_ENABLED() to avoid #ifdefMichael Ellerman
We can avoid the #ifdef by using IS_ENABLED() in the existing condition check. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200313112020.28235-2-mpe@ellerman.id.au
2020-03-27powerpc/smp: Drop superfluous NULL checkMichael Ellerman
We don't need the NULL check of np, the result is the same because the OF helpers cope with NULL, of_node_to_nid(NULL) == NUMA_NO_NODE (-1). Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200313112020.28235-1-mpe@ellerman.id.au
2020-03-27powerpc: Switch 8xx MAINTAINERS entry to ChristopheMichael Ellerman
It's over 10 years since the last commit from Vitaly, so I suspect he's moved on to other things. Christophe has been the primary contributor to 8xx in the last several years, so anoint him as the maintainer. Remove the dead penguingppc.org link. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Christophe Leroy <christophe.leroy@c-s.fr> Link: https://lore.kernel.org/r/20200225092534.9587-1-mpe@ellerman.id.au
2020-03-27powerpc: Update 83xx/85xx MAINTAINERS entryMichael Ellerman
Scott said he was still maintaining this "sort of", so change the status to Odd Fixes. Kumar has long ago moved on to greener pastures. Remove the dead penguinppc.org link. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Scott Wood <oss@buserror.net> Link: https://lore.kernel.org/r/20200224233146.23734-8-mpe@ellerman.id.au
2020-03-27powerpc: Update powermac MAINTAINERS entryMichael Ellerman
Ben is no longer actively maintaining the powermac code, but we know where to find him if something really needs attention. The www.penguinppc.org link is dead so remove it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200224233146.23734-7-mpe@ellerman.id.au
2020-03-27powerpc: Update MPC5XXX MAINTAINERS entryMichael Ellerman
It's several years since the last commit from Anatolij, so mark MPC5XXX as "Odd Fixes" rather than "Maintained". Also the git link no longer works so remove it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Anatolij Gustschin <agust@denx.de> Link: https://lore.kernel.org/r/20200224233146.23734-6-mpe@ellerman.id.au
2020-03-27powerpc: Drop XILINX MAINTAINERS entryMichael Ellerman
This has been orphaned for ~7 years, remove it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Grant Likely <grant.likely@arm.com> Link: https://lore.kernel.org/r/20200224233146.23734-5-mpe@ellerman.id.au
2020-03-27powerpc: Mark 4xx as Orphan in MAINTAINERSMichael Ellerman
The 4xx platforms are no longer maintained. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Alistair Popple <alistair@popple.id.au> Link: https://lore.kernel.org/r/20200224233146.23734-4-mpe@ellerman.id.au
2020-03-27powerpc: Remove PA SEMI MAINTAINERS entriesMichael Ellerman
The PA SEMI entries have been orphaned for 3 ½ years, so fold them into the main POWERPC entry. The result of get_maintainer.pl is more or less unchanged. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Olof Johansson <olof@lixom.net> Link: https://lore.kernel.org/r/20200224233146.23734-3-mpe@ellerman.id.au
2020-03-27powerpc: Update wiki link in MAINTAINERSMichael Ellerman
The wiki has moved, update the link. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200224233146.23734-2-mpe@ellerman.id.au
2020-03-27powerpc: Update MAINTAINERSMichael Ellerman
A while back Paul pointed out I'd been maintaining the tree more or less solo for over five years, so perhaps it's time to update the MAINTAINERS entry. Ben & Paul still wrote most of the code, so keep them as Reviewers so they still get Cc'ed on things. But if you're wondering why your patch hasn't been merged that's my fault. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200224233146.23734-1-mpe@ellerman.id.au
2020-03-26coresight: do not use the BIT() macro in the UAPI headerEugene Syromiatnikov
The BIT() macro definition is not available for the UAPI headers (moreover, it can be defined differently in the user space); replace its usage with the _BITUL() macro that is defined in <linux/const.h>. Fixes: 237483aa5cf4 ("coresight: stm: adding driver for CoreSight STM component") Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20200324042213.GA10452@asgard.redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26Documentation: provide IBM contacts for embargoed hardwareChristian Borntraeger
Provide IBM contact for embargoed hardware issues. As POWER and Z are different teams with different designs it makes sense to have separate persons for the first contact. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Anton Blanchard <anton@linux.ibm.com> Link: https://lore.kernel.org/r/20200326093831.428337-1-borntraeger@de.ibm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: cdns3: make signed 1 bit bitfields unsignedColin Ian King
The signed 1 bit bitfields should be unsigned, so make them unsigned. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200325125041.94769-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: gadget: fsl: remove unused variable 'driver_desc'YueHaibing
drivers/usb/gadget/udc/fsl_udc_core.c:56:19: warning: 'driver_desc' defined but not used [-Wunused-const-variable=] It is never used, so remove it. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200326071419.19240-1-yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: gadget: f_fs: Fix use after free issue as part of queue failureSriharsha Allenki
In AIO case, the request is freed up if ep_queue fails. However, io_data->req still has the reference to this freed request. In the case of this failure if there is aio_cancel call on this io_data it will lead to an invalid dequeue operation and a potential use after free issue. Fix this by setting the io_data->req to NULL when the request is freed as part of queue failure. Fixes: 2e4c7553cd6f ("usb: gadget: f_fs: add aio support") Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org> CC: stable <stable@vger.kernel.org> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200326115620.12571-1-sallenki@codeaurora.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: typec: Correct the documentation for typec_cable_put()Azhar Shaikh
typec_cable_put() function had typec_cable_get in it's documentation. Change it to reflect the correct name. Signed-off-by: Azhar Shaikh <azhar.shaikh@intel.com> Link: https://lore.kernel.org/r/20200326134633.26780-1-azhar.shaikh@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26perf: Normalize gcc parameter when generating arch errno tableHe Zhe
The $(CC) passed to arch_errno_names.sh may include a series of parameters along with gcc itself. To avoid overwriting the following parameters of arch_errno_names.sh and break the build like below, we just pick up the first word of the $(CC). find: unknown predicate `-m64/arch' x86_64-wrs-linux-gcc: warning: '-x c' after last input file has no effect x86_64-wrs-linux-gcc: error: unrecognized command line option '-m64/include/uapi/asm-generic/errno.h' x86_64-wrs-linux-gcc: fatal error: no input files Signed-off-by: He Zhe <zhe.he@windriver.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/1581618066-187262-2-git-send-email-zhe.he@windriver.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-26perf parse-events: Add defensive NULL checkIan Rogers
Terms may have a NULL config in which case a strcmp will SEGV. This can be reproduced with: perf stat -e '*/event=?,nr/' sleep 1 Add a NULL check to avoid this. This was caught by LLVM's libfuzzer. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: clang-built-linux@googlegroups.com Link: http://lore.kernel.org/lkml/20200325164022.41385-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-26mmc: mmci_sdmmc: Fix clear busyd0end irq flagLudovic Barre
The busyd0 line transition can be very fast. The busy request may be completed by busy_d0end, without waiting for the busy_d0 steps. Therefore, clear the busyd0end irq flag, even if no busy_status. Fixes: 0e68de6aa7b1 ("mmc: mmci: sdmmc: add busy_complete callback") Cc: stable@vger.kernel.org Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Link: https://lore.kernel.org/r/20200325143409.13005-2-ludovic.barre@st.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-03-26xfrm: add prep for esp beet mode offloadXin Long
Like __xfrm_transport/mode_tunnel_prep(), this patch is to add __xfrm_mode_beet_prep() to fix the transport_header for gso segments, and reset skb mac_len, and pull skb data to the proto inside esp. This patch also fixes a panic, reported by ltp: # modprobe esp4_offload # runltp -f net_stress.ipsec_tcp [ 2452.780511] kernel BUG at net/core/skbuff.c:109! [ 2452.799851] Call Trace: [ 2452.800298] <IRQ> [ 2452.800705] skb_push.cold.98+0x14/0x20 [ 2452.801396] esp_xmit+0x17b/0x270 [esp4_offload] [ 2452.802799] validate_xmit_xfrm+0x22f/0x2e0 [ 2452.804285] __dev_queue_xmit+0x589/0x910 [ 2452.806264] __neigh_update+0x3d7/0xa50 [ 2452.806958] arp_process+0x259/0x810 [ 2452.807589] arp_rcv+0x18a/0x1c It was caused by the skb going to esp_xmit with a wrong transport header. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2020-03-26esp6: add gso_segment for esp6 beet modeXin Long
Similar to xfrm6_tunnel/transport_gso_segment(), _gso_segment() is added to do gso_segment for esp6 beet mode. Before calling inet6_offloads[proto]->callbacks.gso_segment, it needs to do: - Get the upper proto from ph header to get its gso_segment when xo->proto is IPPROTO_BEETPH. - Add SKB_GSO_TCPV6 to gso_type if x->sel.family != AF_INET6 and the proto == IPPROTO_TCP, so that the current tcp ipv6 packet can be segmented. - Calculate a right value for skb->transport_header and move skb->data to the transport header position. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2020-03-26esp4: add gso_segment for esp4 beet modeXin Long
Similar to xfrm4_tunnel/transport_gso_segment(), _gso_segment() is added to do gso_segment for esp4 beet mode. Before calling inet_offloads[proto]->callbacks.gso_segment, it needs to do: - Get the upper proto from ph header to get its gso_segment when xo->proto is IPPROTO_BEETPH. - Add SKB_GSO_TCPV4 to gso_type if x->sel.family == AF_INET6 and the proto == IPPROTO_TCP, so that the current tcp ipv4 packet can be segmented. - Calculate a right value for skb->transport_header and move skb->data to the transport header position. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2020-03-27powerpc/xmon: Add ASCII dump to d1,d2,d4,d8 commands.Douglas Miller
The reason debuggers add an ASCII dump to other types of memory dumps is to give the user visual reference points in the case that ASCII strings are adjacent to other structures or element. For example, when examining the task_struct structure one can look for the comm[] string and use it to locate other important elements. ASCII strings do not have endianess, they exist in memory in the same order regardless of CPU endianess. ASCII strings are, by definition, human readable and so should be presented in a human readable format. For these reasons, the supplemental ASCII dump does not re-order the strings from memory to match the endianess of the corresponding 16, 32, or 64 bit words. That would make the ASCII dump much less useful. Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1488205694-13337-1-git-send-email-dougmill@linux.vnet.ibm.com
2020-03-26dt-bindings: mmc: Fix node name in an exampleLubomir Rintel
The $nodename allows only "mmc@*" whereas the example node is named "sdhci". Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Link: https://lore.kernel.org/r/20200317093922.20785-19-lkundrak@v3.sk Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-03-26mmc: core: Re-work the code for eMMC sanitizeUlf Hansson
The error path for sanitize operations that completes with -ETIMEDOUT, is tightly coupled with the internal request handling code of the core. More precisely, mmc_wait_for_req_done() checks for specific sanitize errors. This is not only inefficient as it affects all types of requests, but also hackish. Therefore, let's improve the behaviour by moving the error path out of the mmc core. To do that, retuning needs to be held while running the sanitize operation. Moreover, to avoid exporting unnecessary symbols to the mmc block module, let's move the code into the mmc_ops.c file. While updating the actual code, let's also take the opportunity to clean up some of the mess around it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20200316152152.15122-1-ulf.hansson@linaro.org
2020-03-27powerpc/xive: Add a debugfs file to dump internal XIVE stateCédric Le Goater
As does XMON, the debugfs file /sys/kernel/debug/powerpc/xive exposes the XIVE internal state of the machine CPUs and interrupts. Available on the PowerNV and sPAPR platforms. Signed-off-by: Cédric Le Goater <clg@kaod.org> [mpe: Make the debugfs file 0400] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200306150143.5551-5-clg@kaod.org
2020-03-27powerpc/xmon: Add source flags to output of XIVE interruptsCédric Le Goater
Some firmwares or hypervisors can advertise different source characteristics. Track their value under XMON. What we are mostly interested in is the StoreEOI flag. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200306150143.5551-4-clg@kaod.org
2020-03-27powerpc/xive: Fix xmon support on the PowerNV platformCédric Le Goater
The PowerNV platform has multiple IRQ chips and the xmon command dumping the state of the XIVE interrupt should only operate on the XIVE IRQ chip. Fixes: 5896163f7f91 ("powerpc/xmon: Improve output of XIVE interrupts") Cc: stable@vger.kernel.org # v5.4+ Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200306150143.5551-3-clg@kaod.org
2020-03-27powerpc/xive: Use XIVE_BAD_IRQ instead of zero to catch non configured IPIsCédric Le Goater
When a CPU is brought up, an IPI number is allocated and recorded under the XIVE CPU structure. Invalid IPI numbers are tracked with interrupt number 0x0. On the PowerNV platform, the interrupt number space starts at 0x10 and this works fine. However, on the sPAPR platform, it is possible to allocate the interrupt number 0x0 and this raises an issue when CPU 0 is unplugged. The XIVE spapr driver tracks allocated interrupt numbers in a bitmask and it is not correctly updated when interrupt number 0x0 is freed. It stays allocated and it is then impossible to reallocate. Fix by using the XIVE_BAD_IRQ value instead of zero on both platforms. Reported-by: David Gibson <david@gibson.dropbear.id.au> Fixes: eac1e731b59e ("powerpc/xive: guest exploitation of the XIVE interrupt controller") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Tested-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200306150143.5551-2-clg@kaod.org
2020-03-27powerpc: Prefer __section and __printf from compiler_attributes.hNick Desaulniers
Reported-by: Sedat Dilek <sedat.dilek@gmail.com> Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> [mpe: Drop changes to a/p/boot which doesn't use linux headers] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190812215052.71840-10-ndesaulniers@google.com
2020-03-26arm64: dts: Revert "specify console via command line"Arnd Bergmann
I accidentally merged this after requesting a different solution, reverting now. Link: https://patchwork.kernel.org/patch/11431397/ Fixes: 2cedfe1247c0 ("arm64: dts: specify console via command line") Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-26platform/x86: surface3_power: MSHW0011 rev-eng implementationBlaž Hrastnik
Patch was rebased on top of for-next. Thanks for your patience! Blaž I'm resubmitting this patch with review feedback addressed: https://patchwork.kernel.org/patch/10584079/ The patch was previously not resubmitted because it required a change that was reverted in the ACPICA. That has since been corrected: https://github.com/acpica/acpica/commit/9159c09a2a5897a43f78c95cdffc160d399722c3 We've been using this patch for a while and user reports confirm that it works: https://github.com/linux-surface/linux-surface Previous description follows. >8------------------------------------------------------8< The MSHW0011 device is a chip that replaces the battery firmware by using ACPI operation regions on the Surface 3. It is unclear whether or not the chip will be reused somewhere else (under Windows, the chip is called "Surface Platform Power Driver" and the driver is provided by Microsoft). The values have been obtained by reverse engineering, and are subject to errors. Looks like it works on overall pretty well. I couldn't manage to get the IRQ correctly triggered, so I am using a good old polling thread to check for changes. This is something to be fixed in a later version. Link: https://bugzilla.kernel.org/show_bug.cgi?id=106231 Signed-off-by: Blaž Hrastnik <blaz@mxxn.io> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Stephen Just <stephenjust@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-26macintosh: convert to i2c_new_scanned_deviceWolfram Sang
Move from the deprecated i2c_new_probed_device() to the new i2c_new_scanned_device(). No functional change for this driver because it doesn't check the return code anyhow. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au>
2020-03-26perf/tests: Add CET instructions to the new instructions testAdrian Hunter
Add to the "x86 instruction decoder - new instructions" test the following instructions: incsspd incsspq rdsspd rdsspq saveprevssp rstorssp wrssd wrssq wrussd wrussq setssbsy clrssbsy endbr32 endbr64 And the notrack prefix for indirect calls and jumps. For information about the instructions, refer Intel Control-flow Enforcement Technology Specification May 2019 (334525-003). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20200204171425.28073-3-yu-cheng.yu@intel.com
2020-03-26mm/mremap: Add comment explaining the untagging behaviour of mremap()Will Deacon
Commit dcde237319e6 ("mm: Avoid creating virtual address aliases in brk()/mmap()/mremap()") changed mremap() so that only the 'old' address is untagged, leaving the 'new' address in the form it was passed from userspace. This prevents the unexpected creation of aliasing virtual mappings in userspace, but looks a bit odd when you read the code. Add a comment justifying the untagging behaviour in mremap(). Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-03-26x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode mapYu-cheng Yu
Add the following CET instructions to the opcode map: INCSSP: Increment Shadow Stack pointer (SSP). RDSSP: Read SSP into a GPR. SAVEPREVSSP: Use "previous ssp" token at top of current Shadow Stack (SHSTK) to create a "restore token" on the previous (outgoing) SHSTK. RSTORSSP: Restore from a "restore token" to SSP. WRSS: Write to kernel-mode SHSTK (kernel-mode instruction). WRUSS: Write to user-mode SHSTK (kernel-mode instruction). SETSSBSY: Verify the "supervisor token" pointed by MSR_IA32_PL0_SSP, set the token busy, and set then Shadow Stack pointer(SSP) to the value of MSR_IA32_PL0_SSP. CLRSSBSY: Verify the "supervisor token" and clear its busy bit. ENDBR64/ENDBR32: Mark a valid 64/32 bit control transfer endpoint. Detailed information of CET instructions can be found in Intel Software Developer's Manual. Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20200204171425.28073-2-yu-cheng.yu@intel.com
2020-03-26Merge tag 'v5.6-rc7' into i2c/for-5.7Wolfram Sang
Linux 5.6-rc7
2020-03-26Merge tag 'usb-serial-5.7-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.7-rc1 Here are the USB-serial updates for 5.7-rc1, including: - support for a new family of Fintek devices - fix for an io-edgeport slab-out-of-bounds access - fixes for a couple of kernel-doc issues Included are also various clean ups and some new modem device ids. All but the io-edgeport fix have been in linux-next with no reported issues. * tag 'usb-serial-5.7-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback USB: serial: option: add Wistron Neweb D19Q1 USB: serial: option: add BroadMobi BM806U USB: serial: option: add support for ASKEY WWHC050 USB: serial: f81232: add control driver for F81534A USB: serial: fix tty cleanup-op kernel-doc USB: serial: clean up carrier-detect helper USB: serial: f81232: set F81534A serial port with RS232 mode USB: serial: f81232: add F81534A support USB: serial: f81232: use devm_kzalloc for port data USB: serial: f81232: add tx_empty function USB: serial: f81232: extract LSR handler USB: serial: digi_acceleport: remove redundant assignment to pointer priv USB: serial: relax unthrottle memory barrier
2020-03-26Merge tag 'kvm-s390-next-5.7-2' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: cleanups for 5.7 - mark sie control block as 512 byte aligned - use fallthrough;
2020-03-26KVM: selftests: Fix cosmetic copy-paste error in vm_mem_region_move()Sean Christopherson
Fix a copy-paste typo in a comment and error message. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200320205546.2396-3-sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26KVM: Fix out of range accesses to memslotsSean Christopherson
Reset the LRU slot if it becomes invalid when deleting a memslot to fix an out-of-bounds/use-after-free access when searching through memslots. Explicitly check for there being no used slots in search_memslots(), and in the caller of s390's approximation variant. Fixes: 36947254e5f9 ("KVM: Dynamically size memslot array based on number of used slots") Reported-by: Qian Cai <cai@lca.pw> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200320205546.2396-2-sean.j.christopherson@intel.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26KVM: X86: Micro-optimize IPI fastpath delayWanpeng Li
This patch optimizes the virtual IPI fastpath emulation sequence: write ICR2 send virtual IPI read ICR2 write ICR2 send virtual IPI ==> write ICR write ICR We can observe ~0.67% performance improvement for IPI microbenchmark (https://lore.kernel.org/kvm/20171219085010.4081-1-ynorov@caviumnetworks.com/) on Skylake server. Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1585189202-1708-4-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26KVM: X86: Delay read msr data iff writes ICR MSRWanpeng Li
Delay read msr data until we identify guest accesses ICR MSR to avoid to penalize all other MSR writes. Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1585189202-1708-2-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-26Merge tag 'tegra-for-5.7-memory' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers memory: tegra: Changes for v5.7-rc1 These patches contain fixes for EMC scaling debugfs support on Tegra20, Tegra30 and Tegra124. * tag 'tegra-for-5.7-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: memory: tegra: Correct debugfs clk rate-range on Tegra124 memory: tegra: Correct debugfs clk rate-range on Tegra30 memory: tegra: Correct debugfs clk rate-range on Tegra20 Link: https://lore.kernel.org/r/20200313165848.2915133-4-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-26Merge tag 'tegra-for-5.7-firmware' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers firmware: tegra: Changes for v5.7-rc1 A trivial typofix for the Kconfig entry of the Tegra IVC library. * tag 'tegra-for-5.7-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: firmware: tegra: Fix a typo in Kconfig Link: https://lore.kernel.org/r/20200313165848.2915133-2-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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