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2021-03-25pinctrl: intel: check REVID register value for device presenceRoger Pau Monne
Use the value read from the REVID register in order to check for the presence of the device. A read of all ones is treated as if the device is not present, and hence probing is ended. This fixes an issue when running as a Xen PVH dom0, where the ACPI DSDT table is provided unmodified to dom0 and hence contains the pinctrl devices, but the MMIO region(s) containing the device registers might not be mapped in the guest physical memory map if such region(s) are not exposed on a PCI device BAR or marked as reserved in the host memory map. Fixes: 91d898e51e60 ("pinctrl: intel: Convert capability list to features") Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2021-03-25drivers/perf: hisi: Add support for HiSilicon PA PMU driverShaokun Zhang
On HiSilicon Hip09 platform, there is a PA (Protocol Adapter) module on each chip SICL (Super I/O Cluster) which incorporates three Hydra interface and facilitates the cache coherency between the dies on the chip. While PA uncore PMU model is the same as other Hip09 PMU modules and many PMU events are supported. Let's support the PMU driver using the HiSilicon uncore PMU framework. PA PMU supports the following filter functions: * tracetag_en: allows user to count events according to tt_req or tt_core set in L3C PMU. It's the same as other PMUs. * srcid_cmd & srcid_msk: allows user to filter statistics that come from specific CCL/ICL by configuration source ID. * tgtid_cmd & tgtid_msk: it is the similar function to srcid_cmd & srcid_msk. Both are used to check where the data comes from or go to. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-9-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Add support for HiSilicon SLLC PMU driverShaokun Zhang
HiSilicon's Hip09 is comprised by multi-dies that can be connected by SLLC module (Skyros Link Layer Controller), its has separate PMU registers which the driver can program it freely and interrupt is supported to handle counter overflow. Let's support its driver under the framework of HiSilicon uncore PMU driver. SLLC PMU supports the following filter functions: * tracetag_en: allows user to count data according to tt_req or tt_core set in L3C PMU. * srcid_cmd & srcid_msk: allows user to filter statistics that come from specific CCL/ICL by configuration source ID. * tgtid_hi & tgtid_lo: it also supports event statistics that these operations will go to the CCL/ICL by configuration target ID or target ID range. It's the same as source ID with 11-bit width in the SoC. More introduction is added in documentation: Documentation/admin-guide/perf/hisi-pmu.rst Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-8-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Update DDRC PMU for programmable counterShaokun Zhang
DDRC PMU's events are useful for performance profiling, but the events are limited and counter is fixed. On HiSilicon Hip09 platform, PMU counters are the programmable and more events are supported. Let's add the DDRC PMU v2 driver. Bandwidth events are exposed directly in driver and some more events will listed in JSON file later. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-7-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Add new functions for HHA PMUShaokun Zhang
On HiSilicon Hip09 platform, some new functions are also supported on HHA PMU. * tracetag_en: it is the abbreviation of tracetag enable and allows user to count events according to tt_req or tt_core set in L3C PMU. * datasrc_skt: it is the abbreviation of data source from another socket and it is used in the multi-chips. It's the same as L3C PMU. * srcid_cmd & srcid_msk: pair of the fields are used to filter statistics that come from the specific CCL/ICL by the configuration. These are the abbreviation of source ID command and mask. The source ID is 11-bit and detailed descriptions are documented in Documentation/admin-guide/perf/hisi-pmu.rst. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-6-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Add new functions for L3C PMUShaokun Zhang
On HiSilicon Hip09 platform, some new functions are enhanced on L3C PMU: * tt_req: it is the abbreviation of tracetag request and allows user to count only read/write/atomic operations. tt_req is 3-bit and details are listed in the hisi-pmu document. $# perf stat -a -e hisi_sccl3_l3c0/config=0x02,tt_req=0x4/ sleep 5 * tt_core: it is the abbreviation of tracetag core and allows user to filter by core/thread within the cluster, it is a 8-bit bitmap that each bit represents the corresponding core/thread in this L3C. $# perf stat -a -e hisi_sccl3_l3c0/config=0x02,tt_core=0xf/ sleep 5 * datasrc_cfg: it is the abbreviation of data source configuration and allows user to check where the data comes from, such as: from local DDR, cross-die DDR or cross-socket DDR. Its is 5-bit and represents different data source in the SoC. $# perf stat -a -e hisi_sccl3_l3c0/dat_access,datasrc_cfg=0xe/ sleep 5 * datasrc_skt: it is the abbreviation of data source from another socket and is used in the multi-chips, if user wants to check the cross-socket datat source, it shall be added in perf command. Only one bit is used to control this. $# perf stat -a -e hisi_sccl3_l3c0/dat_access,datasrc_cfg=0x10,datasrc_skt=1/ sleep 5 Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-5-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Add PMU version for uncore PMU drivers.Shaokun Zhang
For HiSilicon uncore PMU, more versions are supported and some variables shall be added suffix to distinguish the version which are prepared for the new drivers. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-4-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Refactor code for more uncore PMUsShaokun Zhang
On HiSilicon uncore PMU drivers, interrupt handling function and interrupt registration function are very similar in differents PMU modules. Let's refactor the frame. Two new callbacks are added for the HW accessors: * hisi_uncore_ops::get_int_status returns a bitmap of events which have overflowed and raised an interrupt * hisi_uncore_ops::clear_int_status clears the overflow status for a specific event These callback functions are used by a common IRQ handler, hisi_uncore_pmu_isr(). One more function hisi_uncore_pmu_init_irq() is added to replace each PMU initialization IRQ interface and simplify the code. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-3-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: hisi: Remove unnecessary check of counter indexShaokun Zhang
The sanity check for counter index has been done in the function hisi_uncore_pmu_get_event_idx, so remove the redundant interface hisi_uncore_pmu_counter_valid() and sanity check. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Co-developed-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/1615186237-22263-2-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: Simplify the SMMUv3 PMU event attributesQi Liu
For each PMU event, there is a SMMU_EVENT_ATTR(xx, XX) and &smmu_event_attr_xx.attr.attr. Let's redefine the SMMU_EVENT_ATTR to simplify the smmu_pmu_events. Signed-off-by: Qi Liu <liuqi115@huawei.com> Link: https://lore.kernel.org/r/1612789498-12957-1-git-send-email-liuqi115@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: convert sysfs sprintf family to sysfs_emitQi Liu
sprintf does not know the PAGE_SIZE maximum of the temporary buffer used for sysfs content and it's possible to overrun the buffer length. Use sysfs_emit() function to ensures that no overrun is done. Signed-off-by: Qi Liu <liuqi115@huawei.com> Link: https://lore.kernel.org/r/1616148273-16374-4-git-send-email-liuqi115@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: convert sysfs scnprintf family to sysfs_emit_at() and sysfs_emit()Qi Liu
Use the generic sysfs_emit_at() and sysfs_emit() function to take place of scnprintf() Signed-off-by: Qi Liu <liuqi115@huawei.com> Link: https://lore.kernel.org/r/1616148273-16374-3-git-send-email-liuqi115@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25drivers/perf: convert sysfs snprintf family to sysfs_emitZihao Tang
Fix the following coccicheck warning: ./drivers/perf/hisilicon/hisi_uncore_pmu.c:128:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/fsl_imx8_ddr_perf.c:173:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm_spe_pmu.c:129:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm_smmu_pmu.c:563:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm_dsu_pmu.c:149:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm_dsu_pmu.c:139:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-cmn.c:563:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-cmn.c:351:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-ccn.c:224:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-cci.c:708:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-cci.c:699:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-cci.c:528:8-16: WARNING: use scnprintf or sprintf. ./drivers/perf/arm-cci.c:309:8-16: WARNING: use scnprintf or sprintf. Signed-off-by: Zihao Tang <tangzihao1@hisilicon.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> Link: https://lore.kernel.org/r/1616148273-16374-2-git-send-email-liuqi115@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
2021-03-25pinctrl: qcom: fix unintentional string concatenationArnd Bergmann
clang is clearly correct to point out a typo in a silly array of strings: drivers/pinctrl/qcom/pinctrl-sdx55.c:426:61: error: suspicious concatenation of string literals in an array initialization; did you mean to separate the elements with a comma? [-Werror,-Wstring-concatenation] "gpio14", "gpio15", "gpio16", "gpio17", "gpio18", "gpio19" "gpio20", "gpio21", "gpio22", ^ Add the missing comma that must have accidentally been removed. Fixes: ac43c44a7a37 ("pinctrl: qcom: Add SDX55 pincontrol driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20210323131728.2702789-1-arnd@kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-03-25phy: qualcomm: remove duplicate argumentZhang Yunkai
'HSUSB_CTRL_DPSEHV_CLAMP' in 'val' is duplicated. Signed-off-by: Zhang Yunkai <zhang.yunkai@zte.com.cn> Link: https://lore.kernel.org/r/20210319113612.494623-1-zhang.yunkai@zte.com.cn Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-03-25phy: intel: Fix a typoBhaskar Chowdhury
s/subsytem/subsystem/ Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com> Link: https://lore.kernel.org/r/20210320204055.26107-1-unixbhaskar@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-03-25drm/imx: imx-ldb: fix out of bounds array access warningArnd Bergmann
When CONFIG_OF is disabled, building with 'make W=1' produces warnings about out of bounds array access: drivers/gpu/drm/imx/imx-ldb.c: In function 'imx_ldb_set_clock.constprop': drivers/gpu/drm/imx/imx-ldb.c:186:8: error: array subscript -22 is below array bounds of 'struct clk *[4]' [-Werror=array-bounds] Add an error check before the index is used, which helps with the warning, as well as any possible other error condition that may be triggered at runtime. The warning could be fixed by adding a Kconfig depedency on CONFIG_OF, but Liu Ying points out that the driver may hit the out-of-bounds problem at runtime anyway. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Liu Ying <victor.liu@nxp.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-03-25drm/imx: imx-ldb: Register LDB channel1 when it is the only channel to be usedLiu Ying
LDB channel1 should be registered if it is the only channel to be used. Without this patch, imx_ldb_bind() would skip registering LDB channel1 if LDB channel0 is not used, no matter LDB channel1 needs to be used or not. Fixes: 8767f4711b2b (drm/imx: imx-ldb: move initialization into probe) Signed-off-by: Liu Ying <victor.liu@nxp.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-03-25drm/imx: fix memory leak when fails to initPan Bian
Put DRM device on initialization failure path rather than directly return error code. Fixes: a67d5088ceb8 ("drm/imx: drop explicit drm_mode_config_cleanup") Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-03-24scsi: target: pscsi: Clean up after failure in pscsi_map_sg()Martin Wilck
If pscsi_map_sg() fails, make sure to drop references to already allocated bios. Link: https://lore.kernel.org/r/20210323212431.15306-2-mwilck@suse.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24scsi: target: pscsi: Avoid OOM in pscsi_map_sg()Martin Wilck
pscsi_map_sg() uses the variable nr_pages as a hint for bio_kmalloc() how many vector elements to allocate. If nr_pages is < BIO_MAX_PAGES, it will be reset to 0 after successful allocation of the bio. If bio_add_pc_page() fails later for whatever reason, pscsi_map_sg() tries to allocate another bio, passing nr_vecs = 0. This causes bio_add_pc_page() to fail immediately in the next call. pci_map_sg() continues to allocate zero-length bios until memory is exhausted and the kernel crashes with OOM. This can be easily observed by exporting a SATA DVD drive via pscsi. The target crashes as soon as the client tries to access the DVD LUN. In the case I analyzed, bio_add_pc_page() would fail because the DVD device's max_sectors_kb (128) was exceeded. Avoid this by simply not resetting nr_pages to 0 after allocating the bio. This way, the client receives an I/O error when it tries to send requests exceeding the devices max_sectors_kb, and eventually gets it right. The client must still limit max_sectors_kb e.g. by an udev rule if (like in my case) the driver doesn't report valid block limits, otherwise it encounters I/O errors. Link: https://lore.kernel.org/r/20210323212431.15306-1-mwilck@suse.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24scsi: mpt3sas: Fix error return code of mpt3sas_base_attach()Jia-Ju Bai
When kzalloc() returns NULL, no error return code of mpt3sas_base_attach() is assigned. To fix this bug, r is assigned with -ENOMEM in this case. Link: https://lore.kernel.org/r/20210308035241.3288-1-baijiaju1990@gmail.com Fixes: c696f7b83ede ("scsi: mpt3sas: Implement device_remove_in_progress check in IOCTL path") Reported-by: TOTE Robot <oslab@tsinghua.edu.cn> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24scsi: qedi: Fix error return code of qedi_alloc_global_queues()Jia-Ju Bai
When kzalloc() returns NULL to qedi->global_queues[i], no error return code of qedi_alloc_global_queues() is assigned. To fix this bug, status is assigned with -ENOMEM in this case. Link: https://lore.kernel.org/r/20210308033024.27147-1-baijiaju1990@gmail.com Fixes: ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.") Reported-by: TOTE Robot <oslab@tsinghua.edu.cn> Acked-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24scsi: Revert "qla2xxx: Make sure that aborted commands are freed"Bart Van Assche
Calling vha->hw->tgt.tgt_ops->free_cmd() from qlt_xmit_response() is wrong since the command for which a response is sent must remain valid until the SCSI target core calls .release_cmd(). It has been observed that the following scenario triggers a kernel crash: - qlt_xmit_response() calls qlt_check_reserve_free_req() - qlt_check_reserve_free_req() returns -EAGAIN - qlt_xmit_response() calls vha->hw->tgt.tgt_ops->free_cmd(cmd) - transport_handle_queue_full() tries to retransmit the response Fix this crash by reverting the patch that introduced it. Link: https://lore.kernel.org/r/20210320232359.941-2-bvanassche@acm.org Fixes: 0dcec41acb85 ("scsi: qla2xxx: Make sure that aborted commands are freed") Cc: Quinn Tran <qutran@marvell.com> Cc: Mike Christie <michael.christie@oracle.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24scsi: ibmvfc: Make ibmvfc_wait_for_ops() MQ awareTyrel Datwyler
During MQ enablement of the ibmvfc driver ibmvfc_wait_for_ops() was missed. This function is responsible for waiting on commands to complete that match a certain criteria such as LUN or cancel key. The implementation as is only scans the CRQ for events ignoring any sub-queues and as a result will exit successfully without doing anything when operating in MQ channelized mode. Check the MQ and channel use flags to determine which queues are applicable, and scan each queue accordingly. Note in MQ mode SCSI commands are only issued down sub-queues and the CRQ is only used for driver specific management commands. As such the CRQ events are ignored when operating in MQ mode with channels. Link: https://lore.kernel.org/r/20210319205029.312969-3-tyreld@linux.ibm.com Fixes: 9000cb998bcf ("scsi: ibmvfc: Enable MQ and set reasonable defaults") Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24scsi: ibmvfc: Fix potential race in ibmvfc_wait_for_ops()Tyrel Datwyler
For various EH activities the ibmvfc driver uses ibmvfc_wait_for_ops() to wait for the completion of commands that match a given criteria be it cancel key, or specific LUN. With recent changes commands are completed outside the lock in bulk by removing them from the sent list and adding them to a private completion list. This introduces a potential race in ibmvfc_wait_for_ops() since the criteria for a command to be outstanding is no longer simply being on the sent list, but instead not being on the free list. Avoid this race by scanning the entire command event pool and checking that any matching command that ibmvfc needs to wait on is not already on the free list. Link: https://lore.kernel.org/r/20210319205029.312969-2-tyreld@linux.ibm.com Fixes: 1f4a4a19508d ("scsi: ibmvfc: Complete commands outside the host/queue lock") Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: "Various fixes, all over: 1) Fix overflow in ptp_qoriq_adjfine(), from Yangbo Lu. 2) Always store the rx queue mapping in veth, from Maciej Fijalkowski. 3) Don't allow vmlinux btf in map_create, from Alexei Starovoitov. 4) Fix memory leak in octeontx2-af from Colin Ian King. 5) Use kvalloc in bpf x86 JIT for storing jit'd addresses, from Yonghong Song. 6) Fix tx ptp stats in mlx5, from Aya Levin. 7) Check correct ip version in tun decap, fropm Roi Dayan. 8) Fix rate calculation in mlx5 E-Switch code, from arav Pandit. 9) Work item memork leak in mlx5, from Shay Drory. 10) Fix ip6ip6 tunnel crash with bpf, from Daniel Borkmann. 11) Lack of preemptrion awareness in macvlan, from Eric Dumazet. 12) Fix data race in pxa168_eth, from Pavel Andrianov. 13) Range validate stab in red_check_params(), from Eric Dumazet. 14) Inherit vlan filtering setting properly in b53 driver, from Florian Fainelli. 15) Fix rtnl locking in igc driver, from Sasha Neftin. 16) Pause handling fixes in igc driver, from Muhammad Husaini Zulkifli. 17) Missing rtnl locking in e1000_reset_task, from Vitaly Lifshits. 18) Use after free in qlcnic, from Lv Yunlong. 19) fix crash in fritzpci mISDN, from Tong Zhang. 20) Premature rx buffer reuse in igb, from Li RongQing. 21) Missing termination of ip[a driver message handler arrays, from Alex Elder. 22) Fix race between "x25_close" and "x25_xmit"/"x25_rx" in hdlc_x25 driver, from Xie He. 23) Use after free in c_can_pci_remove(), from Tong Zhang. 24) Uninitialized variable use in nl80211, from Jarod Wilson. 25) Off by one size calc in bpf verifier, from Piotr Krysiuk. 26) Use delayed work instead of deferrable for flowtable GC, from Yinjun Zhang. 27) Fix infinite loop in NPC unmap of octeontx2 driver, from Hariprasad Kelam. 28) Fix being unable to change MTU of dwmac-sun8i devices due to lack of fifo sizes, from Corentin Labbe. 29) DMA use after free in r8169 with WoL, fom Heiner Kallweit. 30) Mismatched prototypes in isdn-capi, from Arnd Bergmann. 31) Fix psample UAPI breakage, from Ido Schimmel" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (171 commits) psample: Fix user API breakage math: Export mul_u64_u64_div_u64 ch_ktls: fix enum-conversion warning octeontx2-af: Fix memory leak of object buf ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation net: bridge: don't notify switchdev for local FDB addresses net/sched: act_ct: clear post_ct if doing ct_clear net: dsa: don't assign an error value to tag_ops isdn: capi: fix mismatched prototypes net/mlx5: SF, do not use ecpu bit for vhca state processing net/mlx5e: Fix division by 0 in mlx5e_select_queue net/mlx5e: Fix error path for ethtool set-priv-flag net/mlx5e: Offload tuple rewrite for non-CT flows net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP net/mlx5: Add back multicast stats for uplink representor net: ipconfig: ic_dev can be NULL in ic_close_devs MAINTAINERS: Combine "QLOGIC QLGE 10Gb ETHERNET DRIVER" sections into one docs: networking: Fix a typo r8169: fix DMA being used after buffer free if WoL is enabled net: ipa: fix init header command validation ...
2021-03-25drm/nouveau/kms/nve4-nv108: Limit cursors to 128x128Lyude Paul
While Kepler does technically support 256x256 cursors, it turns out that Kepler actually has some additional requirements for scanout surfaces that we're not enforcing correctly, which aren't present on Maxwell and later. Cursor surfaces must always use small pages (4K), and overlay surfaces must always use large pages (128K). Fixing this correctly though will take a bit more work: as we'll need to add some code in prepare_fb() to move cursor FBs in large pages to small pages, and vice-versa for overlay FBs. So until we have the time to do that, just limit cursor surfaces to 128x128 - a size small enough to always default to small pages. This means small ovlys are still broken on Kepler, but it is extremely unlikely anyone cares about those anyway :). Signed-off-by: Lyude Paul <lyude@redhat.com> Fixes: d3b2f0f7921c ("drm/nouveau/kms/nv50-: Report max cursor size to userspace") Cc: <stable@vger.kernel.org> # v5.11+ Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2021-03-24xen/x86: make XEN_BALLOON_MEMORY_HOTPLUG_LIMIT depend on MEMORY_HOTPLUGRoger Pau Monne
The Xen memory hotplug limit should depend on the memory hotplug generic option, rather than the Xen balloon configuration. It's possible to have a kernel with generic memory hotplug enabled, but without Xen balloon enabled, at which point memory hotplug won't work correctly due to the size limitation of the p2m. Rename the option to XEN_MEMORY_HOTPLUG_LIMIT since it's no longer tied to ballooning. Fixes: 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated memory") Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20210324122424.58685-2-roger.pau@citrix.com Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2021-03-24ch_ktls: fix enum-conversion warningArnd Bergmann
gcc points out an incorrect enum assignment: drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c: In function 'chcr_ktls_cpl_set_tcb_rpl': drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c:684:22: warning: implicit conversion from 'enum <anonymous>' to 'enum ch_ktls_open_state' [-Wenum-conversion] This appears harmless, and should apparently use 'CH_KTLS_OPEN_SUCCESS' instead of 'false', with the same value '0'. Fixes: efca3878a5fb ("ch_ktls: Issue if connection offload fails") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-24octeontx2-af: Fix memory leak of object bufColin Ian King
Currently the error return path when lfs fails to allocate is not free'ing the memory allocated to buf. Fix this by adding the missing kfree. Addresses-Coverity: ("Resource leak") Fixes: f7884097141b ("octeontx2-af: Formatting debugfs entry rsrc_alloc.") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-24ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalationYangbo Lu
Current calculation for diff of TMR_ADD register value may have 64-bit overflow in this code line, when long type scaled_ppm is large. adj *= scaled_ppm; This patch is to resolve it by using mul_u64_u64_div_u64(). Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-24Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "Three fixes for the Qualcomm clk driver: two for regressions this merge window and one for a long-standing problem that only popped up now that eMMC is being used" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: gcc-sc7180: Use floor ops for the correct sdcc1 clk clk: qcom: rcg2: Rectify clk_gfx3d rate rounding without mux division clk: qcom: rpmh: Update the XO clock source for SC7280
2021-03-24Merge tag 'platform-drivers-x86-v5.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform drivers fixes from Hans de Goede: "A set of bug-fixes and some model specific quirks. Summary: - dell-wmi-sysman: A set of probe-error-exit-handling fixes to fix some systems which advertise the WMI GUIDs, but are not compatible, not booting - intel-vbtn/intel-hid: Misc. bugfixes - intel_pmc: Bug-fixes + a quirk to lower suspend power-consumption on Tiger Lake - thinkpad_acpi: misc bugfixes" * tag 'platform-drivers-x86-v5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/x86: intel_pmc_core: Ignore GBE LTR on Tiger Lake platforms platform/x86: intel_pmc_core: Update Kconfig platform/x86: intel_pmt_crashlog: Fix incorrect macros platform/x86: intel_pmt_class: Initial resource to 0 platform/x86: intel-vbtn: Stop reporting SW_DOCK events platform/x86: dell-wmi-sysman: Cleanup create_attributes_level_sysfs_files() platform/x86: dell-wmi-sysman: Make sysman_init() return -ENODEV of the interfaces are not found platform/x86: dell-wmi-sysman: Cleanup sysman_init() error-exit handling platform/x86: dell-wmi-sysman: Fix release_attributes_data() getting called twice on init_bios_attributes() failure platform/x86: dell-wmi-sysman: Make it safe to call exit_foo_attributes() multiple times platform/x86: dell-wmi-sysman: Fix possible NULL pointer deref on exit platform/x86: dell-wmi-sysman: Fix crash caused by calling kset_unregister twice platform/x86: thinkpad_acpi: Disable DYTC CQL mode around switching to balanced mode platform/x86: thinkpad_acpi: Allow the FnLock LED to change state platform/x86: thinkpad_acpi: check dytc version for lapmode sysfs platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2
2021-03-24fpga: dfl: afu: harden port enable logicRuss Weight
Port enable is not complete until ACK = 0. Change __afu_port_enable() to guarantee that the enable process is complete by polling for ACK == 0. Signed-off-by: Russ Weight <russell.h.weight@intel.com> Reviewed-by: Tom Rix <trix@redhat.com> Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Acked-by: Wu Hao <hao.wu@intel.com> Signed-off-by: Moritz Fischer <mdf@kernel.org>
2021-03-24ACPICA: Always create namespace nodes using acpi_ns_create_node()Vegard Nossum
ACPICA commit 29da9a2a3f5b2c60420893e5c6309a0586d7a329 ACPI is allocating an object using kmalloc(), but then frees it using kmem_cache_free(<"Acpi-Namespace" kmem_cache>). This is wrong and can lead to boot failures manifesting like this: hpet0: 3 comparators, 64-bit 100.000000 MHz counter clocksource: Switched to clocksource tsc-early BUG: unable to handle page fault for address: 000000003ffe0018 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.6.0+ #211 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 RIP: 0010:kmem_cache_alloc+0x70/0x1d0 Code: 00 00 4c 8b 45 00 65 49 8b 50 08 65 4c 03 05 6f cc e7 7e 4d 8b 20 4d 85 e4 0f 84 3d 01 00 00 8b 45 20 48 8b 7d 00 48 8d 4a 01 <49> 8b 1c 04 4c 89 e0 65 48 0f c7 0f 0f 94 c0 84 c0 74 c5 8b 45 20 RSP: 0000:ffffc90000013df8 EFLAGS: 00010206 RAX: 0000000000000018 RBX: ffffffff81c49200 RCX: 0000000000000002 RDX: 0000000000000001 RSI: 0000000000000dc0 RDI: 000000000002b300 RBP: ffff88803e403d00 R08: ffff88803ec2b300 R09: 0000000000000001 R10: 0000000000000dc0 R11: 0000000000000006 R12: 000000003ffe0000 R13: ffffffff8110a583 R14: 0000000000000dc0 R15: ffffffff81c49a80 FS: 0000000000000000(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000003ffe0018 CR3: 0000000001c0a001 CR4: 00000000003606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __trace_define_field+0x33/0xa0 event_trace_init+0xeb/0x2b4 tracer_init_tracefs+0x60/0x195 ? register_tracer+0x1e7/0x1e7 do_one_initcall+0x74/0x160 kernel_init_freeable+0x190/0x1f0 ? rest_init+0x9a/0x9a kernel_init+0x5/0xf6 ret_from_fork+0x35/0x40 CR2: 000000003ffe0018 ---[ end trace 707efa023f2ee960 ]--- RIP: 0010:kmem_cache_alloc+0x70/0x1d0 Bisection leads to unrelated changes in slab; Vlastimil Babka suggests an unrelated layout or slab merge change merely exposed the underlying bug. Link: https://lore.kernel.org/lkml/4dc93ff8-f86e-f4c9-ebeb-6d3153a78d03@oracle.com/ Link: https://lore.kernel.org/r/a1461e21-c744-767d-6dfc-6641fd3e3ce2@siemens.com Link: https://github.com/acpica/acpica/commit/29da9a2a Fixes: f79c8e4136ea ("ACPICA: Namespace: simplify creation of the initial/default namespace") Reported-by: Jan Kiszka <jan.kiszka@siemens.com> Diagnosed-by: Vlastimil Babka <vbabka@suse.cz> Diagnosed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Cc: 5.10+ <stable@vger.kernel.org> # 5.10+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-03-24drm/i915: Fix the GT fence revocation runtime PM logicImre Deak
To optimize some task deferring it until runtime resume unless someone holds a runtime PM reference (because in this case the task can be done w/o the overhead of runtime resume), we have to use the runtime PM get-if-active logic: If the runtime PM usage count is 0 (and so get-if-in-use would return false) the runtime suspend handler is not necessarily called yet (it could be just pending), so the device is not necessarily powered down, and so the runtime resume handler is not guaranteed to be called. The fence revocation depends on the above deferral, so add a get-if-active helper and use it during fence revocation. v2: - Add code comment explaining the fence reg programming deferral logic to i915_vma_revoke_fence(). (Chris) - Add Cc: stable and Fixes: tags. (Chris) - Fix the function docbook comment. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: <stable@vger.kernel.org> # v4.12+ Fixes: 181df2d458f3 ("drm/i915: Take rpm wakelock for releasing the fence on unbind") Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210322204223.919936-1-imre.deak@intel.com (cherry picked from commit 9d58aa46291d4d696bb1eac3436d3118f7bf2573) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2021-03-24x86/Hyper-V: Support for free page reportingSunil Muthuswamy
Linux has support for free page reporting now (36e66c554b5c) for virtualized environment. On Hyper-V when virtually backed VMs are configured, Hyper-V will advertise cold memory discard capability, when supported. This patch adds the support to hook into the free page reporting infrastructure and leverage the Hyper-V cold memory discard hint hypercall to report/free these pages back to the host. Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Tested-by: Matheus Castello <matheus@castello.eng.br> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Tested-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/SN4PR2101MB0880121FA4E2FEC67F35C1DCC0649@SN4PR2101MB0880.namprd21.prod.outlook.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
2021-03-24char: lp: remove redundant space around (inside) parenthesized expressionsQiang Ma
These two lines of code don't meet the linux kernel style, and use a space after these keywords: if, switch, case, for, do, while. Do not add spaces around (inside) parenthesized expressions. So remove the redundant space. Signed-off-by: Qiang Ma <maqianga@uniontech.com> Link: https://lore.kernel.org/r/20210309072059.22107-1-maqianga@uniontech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Rearrange optional stuff in pps_gpio_setup()Andy Shevchenko
Rearrange optional stuff in pps_gpio_setup() so it will go after mandatory one and with reduced indentation. This will increase readability of the sources. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-7-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Use struct device pointer directlyAndy Shevchenko
In most parts of the code the platform device is not used. Use struct device pointer directly to reduce code size and increase readability. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-6-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Make use of device propertiesAndy Shevchenko
Device property API allows to gather device resources from different sources, such as ACPI. Convert the drivers to unleash the power of device property API. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-5-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Get rid of legacy platform dataAndy Shevchenko
Platform data is a legacy interface to supply device properties to the driver. In this case we even don't have in-kernel users for it. Just remove it for good. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-4-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Remove redundant condition in ->remove()Andy Shevchenko
The timer along with GPIO API are NULL-aware, there is no need to test against existing GPIO echo line. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Use dev_err_probe() to avoid log noiseAndy Shevchenko
When GPIO APIs return -EPROBE_DEFER there is no need to print the message, especially taking into consideration that it may repeat several times. Use dev_err_probe() to avoid log noise in such cases. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24pps: clients: gpio: Bail out on error when requesting GPIO echo lineAndy Shevchenko
When requesting optional GPIO echo line, bail out on error, so user will know that something wrong with the existing property. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210318130321.24227-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24binder: BINDER_GET_FROZEN_INFO ioctlMarco Ballesio
User space needs to know if binder transactions occurred to frozen processes. Introduce a new BINDER_GET_FROZEN ioctl and keep track of transactions occurring to frozen proceses. Signed-off-by: Marco Ballesio <balejs@google.com> Signed-off-by: Li Li <dualli@google.com> Acked-by: Todd Kjos <tkjos@google.com> Link: https://lore.kernel.org/r/20210316011630.1121213-4-dualli@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24binder: use EINTR for interrupted wait for workMarco Ballesio
when interrupted by a signal, binder_wait_for_work currently returns -ERESTARTSYS. This error code isn't propagated to user space, but a way to handle interruption due to signals must be provided to code using this API. Replace this instance of -ERESTARTSYS with -EINTR, which is propagated to user space. binder_wait_for_work Signed-off-by: Marco Ballesio <balejs@google.com> Signed-off-by: Li Li <dualli@google.com> Test: built, booted, interrupted a worker thread within Acked-by: Todd Kjos <tkjos@google.com> Link: https://lore.kernel.org/r/20210316011630.1121213-3-dualli@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24binder: BINDER_FREEZE ioctlMarco Ballesio
Frozen tasks can't process binder transactions, so a way is required to inform transmitting ends of communication failures due to the frozen state of their receiving counterparts. Additionally, races are possible between transitions to frozen state and binder transactions enqueued to a specific process. Implement BINDER_FREEZE ioctl for user space to inform the binder driver about the intention to freeze or unfreeze a process. When the ioctl is called, block the caller until any pending binder transactions toward the target process are flushed. Return an error to transactions to processes marked as frozen. Co-developed-by: Todd Kjos <tkjos@google.com> Acked-by: Todd Kjos <tkjos@google.com> Signed-off-by: Marco Ballesio <balejs@google.com> Signed-off-by: Todd Kjos <tkjos@google.com> Signed-off-by: Li Li <dualli@google.com> Link: https://lore.kernel.org/r/20210316011630.1121213-2-dualli@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24vmci_host: print unexpanded names of ioctl requests in debug messagesGleb Fotengauer-Malinovskiy
__stringify macro function expands its arguments, but in this messages we expect to see ioctl request name instead of it's _IOC macro expansion. $ cat stringify.c #include <stdio.h> #include <asm/ioctl.h> #define __stringify_1(x) #x #define __stringify(x) __stringify_1(x) #define VMCI_DO_IOCTL(ioctl_name) \ char *name = __stringify(IOCTL_VMCI_ ## ioctl_name); int main() { VMCI_DO_IOCTL(INIT_CONTEXT) printf("%s\n", name); } $ cc stringify.c $ ./a.out (((0U) << (((0+8)+8)+14)) | (((7)) << (0+8)) | (((0xa0)) << 0) | ((0) << ((0+8)+8))) Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org> Link: https://lore.kernel.org/r/20210302153346.300416-1-glebfm@altlinux.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit (git 2.34.1) at 2025-09-16 07:15:53 +0000