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2020-06-15scsi: Wire up ata_scsi_dma_need_drain for SAS HBA driversChristoph Hellwig1-0/+1
We need ata_scsi_dma_need_drain for all drivers wired up to drive ATAPI devices through libata. That also includes the SAS HBA drivers in addition to native libata HBA drivers. Link: https://lore.kernel.org/r/20200615064624.37317-3-hch@lst.de Fixes: cc97923a5bcc ("block: move dma drain handling to scsi") Reported-by: Michael Ellerman <mpe@ellerman.id.au> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Acked-by: John Garry <john.garry@huawei.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: Introduce read and write length for IOCTL payload structureViswas G4-21/+22
Removed the common length and introduce read and write length for IOCTL payload structure. [mkp: fixed SoB ordering] Link: https://lore.kernel.org/r/20200316074906.9119-7-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Viswas G <viswas.g@microchip.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: sysfs attribute for non fatal dumpDeepak Ukey4-0/+180
Added the sysfs attribute for non fatal log so that management utility can get the non fatal dump from driver. The non-fatal error is an error condition or abnormal behavior detected by the host, or detected and reported by the controller to the host.The non-fatal error does not stop the controller firmware and enables it to still respond to host requests. A typical example of a non-fatal error is an I/O timeout or an unusual error notification from the controller. Since the firmware is operational, the error dump information is pushed to host memory (by firmware) upon request from the host. Link: https://lore.kernel.org/r/20200316074906.9119-6-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: Cleanup initialization loading fail pathPeter Chang1-6/+11
1) Move the instance tracking down after we think the instance is good to go. Avoids having a use-after free. 2) There are goto targets for trying to cleanup if the hw fails to initialize, but there's some overlap depending on who thinks they own the sub-structures. Link: https://lore.kernel.org/r/20200316074906.9119-5-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Peter Chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: Free the tag when mpi_set_phy_profile_resp is receivedyuuzheng1-3/+7
In pm80xx driver, the command mpi_set_phy_profile_req is sent by host during boot to configure the phy profile such as analog setting page, rate control page. However, the tag is not freed when its response is received. As a result, 16 tags are missing for each HBA after boot. When NCQ is enabled with queue depth 16, it needs at least, 15 * 16 = 240 tags for each HBA to achieve the best performance. In current pm80xx driver with setting CCB_MAX = 256, the total number of tags in each HBA is 255 for data IO. Hence, without returning those tags to the pool after boot, some device will finally be forced to non-ncq mode by ATA layer due to excessive errors (i.e. LLDD cannot allocate tag for queued task). Link: https://lore.kernel.org/r/20200316074906.9119-4-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: yuuzheng <yuuzheng@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: Deal with kexec rebootsVikram Auradkar2-9/+54
A kexec reboot causes the controller fw to assert. This assertion shows up in two ways, the controller doesn't show up as ready and an interrupt is waiting as soon as the handler is registered. To resolve this added below fix: - Split the interrupt handling setup into two parts, setup and request. - If the controller ready register indicates not-ready, but that the not readiness is only on the IOC units we can still try a reset to bring the system back to the pre-reboot state. Link: https://lore.kernel.org/r/20200316074906.9119-3-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Vikram Auradkar <auradkar@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: pm80xx: Increase request sg lengthPeter Chang2-3/+4
Increasing the per-request size maximum (max_sectors_kb) runs into the per-device DMA scatter gather list limit (max_segments) for users of the io vector system calls (eg, readv and writev). This is because the kernel combines io vectors into DMA segments when possible, but it doesn't work for our user because the vectors in the buffer cache get scrambled. This change bumps the advertised max scatter gather length to 528 to cover 2M w/ x86's 4k pages and some extra for the user checksum. It trims the size of some of the tables we don't care about and exposes all of the command slots upstream to the SCSI layer. Also reduced the PM8001_MAX_CCB to 256 as pm8001 driver has memory limit depend on machine capability. If we increase the sg length, we need to trade-off it by decreasing PM8001_MAX_CCB. PM8001_MAX_CCB = 256 does not have any influence on normal use Link: https://lore.kernel.org/r/20200316074906.9119-2-deepak.ukey@microchip.com Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Peter Chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Radha Ramachandran <radha@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-30scsi: pm80xx: fix spelling mistake "to" -> "too"Colin Ian King1-1/+1
There is a spelling mistake in a pm8001_printk message. Fix it. Link: https://lore.kernel.org/r/20200123005706.2834281-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-03compat_ioctl: scsi: handle HDIO commands from driversArnd Bergmann1-0/+3
The ata_sas_scsi_ioctl() function implements a number of HDIO_* commands for SCSI devices, it is used by all libata drivers as well as a few drivers that support SAS attached SATA drives. The only command that is not safe for compat ioctls here is HDIO_GET_32BIT. Change the implementation to check for in_compat_syscall() in order to do both cases correctly, and change all callers to use it as both native and compat callback pointers, including the indirect callers through sas_ioctl and ata_scsi_ioctl. Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-12-08Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-2/+1
Pull more SCSI updates from James Bottomley: "Eleven patches, all in drivers (no core changes) that are either minor cleanups or small fixes. They were late arriving, but still safe for -rc1" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: MAINTAINERS: Add the linux-scsi mailing list to the ISCSI entry scsi: megaraid_sas: Make poll_aen_lock static scsi: sd_zbc: Improve report zones error printout scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI scsi: qla2xxx: unregister ports after GPN_FT failure scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan scsi: pm80xx: Remove unused include of linux/version.h scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3 scsi: scsi_transport_sas: Fix memory leak when removing devices scsi: lpfc: size cpu map by last cpu id set scsi: ibmvscsi_tgt: Remove unneeded variable rc
2019-12-03Merge tag 'pci-v5.5-changes' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Warn if a host bridge has no NUMA info (Yunsheng Lin) - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov) Resource management: - Fix boot-time Embedded Controller GPE storm caused by incorrect resource assignment after ACPI Bus Check Notification (Mika Westerberg) - Protect pci_reassign_bridge_resources() against concurrent addition/removal (Benjamin Herrenschmidt) - Fix bridge dma_ranges resource list cleanup (Rob Herring) - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the MMIO and prefetchable MMIO window sizes of hotplug bridges independently (Nicholas Johnson) - Fix MMIO/MMIO_PREF window assignment that assigned more space than desired (Nicholas Johnson) - Only enforce bus numbers from bridge EA if the bridge has EA devices downstream (Subbaraya Sundeep) - Consolidate DT "dma-ranges" parsing and convert all host drivers to use shared parsing (Rob Herring) Error reporting: - Restore AER capability after resume (Mayurkumar Patel) - Add PoisonTLPBlocked AER counter (Rajat Jain) - Use for_each_set_bit() to simplify AER code (Andy Shevchenko) - Fix AER kernel-doc (Andy Shevchenko) - Add "pcie_ports=dpc-native" parameter to allow native use of DPC even if platform didn't grant control over AER (Olof Johansson) Hotplug: - Avoid returning prematurely from sysfs requests to enable or disable a PCIe hotplug slot (Lukas Wunner) - Don't disable interrupts twice when suspending hotplug ports (Mika Westerberg) - Fix deadlocks when PCIe ports are hot-removed while suspended (Mika Westerberg) Power management: - Remove unnecessary ASPM locking (Bjorn Helgaas) - Add support for disabling L1 PM Substates (Heiner Kallweit) - Allow re-enabling Clock PM after it has been disabled (Heiner Kallweit) - Add sysfs attributes for controlling ASPM link states (Heiner Kallweit) - Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl" sysfs files (Heiner Kallweit) - Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on USB 2.0 or 1.1 connect events (Kai-Heng Feng) - Move power state check out of pci_msi_supported() (Bjorn Helgaas) - Fix incorrect MSI-X masking on resume and revert related nvme quirk for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan) - Always return devices to D0 when thawing to fix hibernation with drivers like mlx4 that used legacy power management (previously we only did it for drivers with new power management ops) (Dexuan Cui) - Clear PCIe PME Status even for legacy power management (Bjorn Helgaas) - Fix PCI PM documentation errors (Bjorn Helgaas) - Use dev_printk() for more power management messages (Bjorn Helgaas) - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas) - Convert xen-platform from legacy to generic power management (Bjorn Helgaas) - Removed unused .resume_early() and .suspend_late() legacy power management hooks (Bjorn Helgaas) - Rearrange power management code for clarity (Rafael J. Wysocki) - Decode power states more clearly ("4" or "D4" really refers to "D3cold") (Bjorn Helgaas) - Notice when reading PM Control register returns an error (~0) instead of interpreting it as being in D3hot (Bjorn Helgaas) - Add missing link delays required by the PCIe spec (Mika Westerberg) Virtualization: - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn Helgaas) - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Allow VFs to use PASID (the PF PASID capability is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Disconnect PF and VF ATS enablement, since ATS in PFs and associated VFs can be enabled independently (Kuppuswamy Sathyanarayanan) - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan) - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas) - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof Wilczynski) - Remove unused PRI and PASID stubs (Bjorn Helgaas) - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID interfaces that are only used by built-in IOMMU drivers (Bjorn Helgaas) - Hide PRI and PASID state restoration functions used only inside the PCI core (Bjorn Helgaas) - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski) - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut) - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George Cherian) - Fix the UPDCR register address in the Intel ACS quirk (Steffen Liebergeld) - Unify ACS quirk implementations (Bjorn Helgaas) Amlogic Meson host bridge driver: - Fix meson PERST# GPIO polarity problem (Remi Pommarel) - Add DT bindings for Amlogic Meson G12A (Neil Armstrong) - Fix meson clock names to match DT bindings (Neil Armstrong) - Add meson support for Amlogic G12A SoC with separate shared PHY (Neil Armstrong) - Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe combo PHY (Neil Armstrong) - Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong) - Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT (Neil Armstrong) Broadcom iProc host bridge driver: - Invalidate iProc PAXB address mapping before programming it (Abhishek Shah) - Fix iproc-msi and mvebu __iomem annotations (Ben Dooks) Cadence host bridge driver: - Refactor Cadence PCIe host controller to use as a library for both host and endpoint (Tom Joseph) Freescale Layerscape host bridge driver: - Add layerscape LS1028a support (Xiaowei Bao) Intel VMD host bridge driver: - Add VMD bus 224-255 restriction decode (Jon Derrick) - Add VMD 8086:9A0B device ID (Jon Derrick) - Remove Keith from VMD maintainer list (Keith Busch) Marvell ARMADA 3700 / Aardvark host bridge driver: - Use LTSSM state to build link training flag since Aardvark doesn't implement the Link Training bit (Remi Pommarel) - Delay before training Aardvark link in case PERST# was asserted before the driver probe (Remi Pommarel) - Fix Aardvark issues with Root Control reads and writes (Remi Pommarel) - Don't rely on jiffies in Aardvark config access path since interrupts may be disabled (Remi Pommarel) - Fix Aardvark big-endian support (Grzegorz Jaszczyk) Marvell ARMADA 370 / XP host bridge driver: - Make mvebu_pci_bridge_emul_ops static (Ben Dooks) Microsoft Hyper-V host bridge driver: - Add hibernation support for Hyper-V virtual PCI devices (Dexuan Cui) - Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan Cui) - Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui) Mobiveil host bridge driver: - Change mobiveil csr_read()/write() function names that conflict with riscv arch functions (Kefeng Wang) NVIDIA Tegra host bridge driver: - Fix Tegra CLKREQ dependency programming (Vidya Sagar) Renesas R-Car host bridge driver: - Remove unnecessary header include from rcar (Andrew Murray) - Tighten register index checking for rcar inbound range programming (Marek Vasut) - Fix rcar inbound range alignment calculation to improve packing of multiple entries (Marek Vasut) - Update rcar MACCTLR setting to match documentation (Yoshihiro Shimoda) - Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual (Yoshihiro Shimoda) - Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon Horman) Rockchip host bridge driver: - Make rockchip 0V9 and 1V8 power regulators non-optional (Robin Murphy) Socionext UniPhier host bridge driver: - Set uniphier to host (RC) mode always (Kunihiko Hayashi) Endpoint drivers: - Fix endpoint driver sign extension problem when shifting page number to phys_addr_t (Alan Mikhak) Misc: - Add NumaChip SPDX header (Krzysztof Wilczynski) - Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski) - Remove unused includes (Krzysztof Wilczynski) - Removed unused sysfs attribute groups (Ben Dooks) - Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas) - Add PCIe Link Control 2 register field definitions to replace magic numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas) - Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas) - Use pcie_capability_read_word() instead of pci_read_config_word() in AMDGPU and Radeon CIK/SI (Frederick Lawler) - Remove unused pci_irq_get_node() Greg Kroah-Hartman) - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig (Palmer Dabbelt, Michal Simek) - Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe) - Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn Helgaas) - Fix bridge emulation big-endian support (Grzegorz Jaszczyk) - Fix dwc find_next_bit() usage (Niklas Cassel) - Fix pcitest.c fd leak (Hewenliang) - Fix typos and comments (Bjorn Helgaas) - Fix Kconfig whitespace errors (Krzysztof Kozlowski)" * tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits) PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist asm-generic: Make msi.h a mandatory include/asm header Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T" PCI/MSI: Fix incorrect MSI-X masking on resume PCI/MSI: Move power state check out of pci_msi_supported() PCI/MSI: Remove unused pci_irq_get_node() PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer PCI: hv: Change pci_protocol_version to per-hbus PCI: hv: Add hibernation support PCI: hv: Reorganize the code in preparation of hibernation MAINTAINERS: Remove Keith from VMD maintainer PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code PCI/ASPM: Add sysfs attributes for controlling ASPM link states PCI: Fix indentation drm/radeon: Prefer pcie_capability_read_word() drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions drm/radeon: Correct Transmit Margin masks drm/amdgpu: Prefer pcie_capability_read_word() PCI: uniphier: Set mode register to host mode drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions ...
2019-11-26scsi: pm80xx: Remove unused include of linux/version.hYueHaibing1-1/+0
Remove #include <linux/version.h>. Don't need it. Link: https://lore.kernel.org/r/20191122020911.33269-1-yuehaibing@huawei.com Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-26scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3Colin Ian King1-1/+1
The condition (reg_val != 2) || (reg_val != 3) will always be true because reg_val cannot be equal to two different values at the same time. Fix this by replacing the || operator with && so that the loop will loop if reg_val is not a 2 and not a 3 as was originally intended. Fixes: 50dc2f221455 ("scsi: pm80xx: Modified the logic to collect fatal dump") Link: https://lore.kernel.org/r/20191120135031.270708-1-colin.king@canonical.com Addresses-Coverity: ("Constant expression result") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Modified the logic to collect fatal dumpDeepak Ukey2-59/+195
Added the correct method to collect the fatal dump. Link: https://lore.kernel.org/r/20191114100910.6153-14-deepak.ukey@microchip.com Reported-by: kbuild test robot <lkp@intel.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Tie the interrupt name to the module instanceVikram Auradkar2-5/+8
With MSI-x enabled, the interrupt instances are <prefix><index> where the prefix is fixed for all module instances, making it a little harder to track down what's what. Link: https://lore.kernel.org/r/20191114100910.6153-13-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Vikram Auradkar <auradkar@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Controller fatal error through sysfsDeepak Ukey1-0/+20
Added support to check controller fatal error through sysfs. Link: https://lore.kernel.org/r/20191114100910.6153-12-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Do not request 12G sas speedspeter chang3-17/+22
Occasionally, 6G capable drives fail to train at 6G on links that look good from a signal-integrity perspective. PMC suggests configuring the port to not even expect 12G. Link: https://lore.kernel.org/r/20191114100910.6153-11-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Cleanup command when a reset times outpeter chang1-13/+37
Added the fix so the if driver properly sent the abort it tries to remove it from the firmware's list of outstanding commands regardless of the abort status. This means that the task gets freed 'now' rather than possibly getting freed later when the scsi layer thinks it's leaked but still valid. Link: https://lore.kernel.org/r/20191114100910.6153-10-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Fix command issue sizingpeter chang3-40/+79
The commands to the controller are sent in fixed sized chunks which are set per-chip-generation and stashed in iomb_size. The driver fills in structs matching the register layout and memcpy this to memory shared with the controller. However, there are two problem cases: 1) Things like phy_start_req are too large because they share the sas_identify_frame definition with libsas, and it includes the crc word. This means that it's overwriting the start of the next command block, that's ok except if it happens at the end of the shared memory area. 2) Things like set_nvm_data_req which are shared between the HAL layers. This means that it's sending 'random' data for things that are in the reserved area. So far we haven't found a case where the controller FW cares, but sending possible gibberish (for most of the structures this is in the reserved area so previously zeroed) is not recommended. Link: https://lore.kernel.org/r/20191114100910.6153-9-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Fix dereferencing dangling pointerVikram Auradkar1-6/+6
sas_task structure should not be used after task_done is called. If the device is gone or not attached, we call task_done on t and continue to use in the sas_task in rest of the function. task_done is pointing to sas_ata_task_done, may free the memory associated with the task before returning. Link: https://lore.kernel.org/r/20191114100910.6153-8-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Vikram Auradkar <auradkar@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Increase timeout for pm80xx mpi_uninit_checkianyar2-2/+5
The function mpi_uninit_check takes longer for inbound doorbell register to be cleared. Increased the timeout substantially so that the driver does not fail to load. Link: https://lore.kernel.org/r/20191114100910.6153-7-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: ianyar <ianyar@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Squashed logging cleanup changespeter chang5-37/+170
The default logging doesn't include the device name, so it's difficult to determine which controller is being logged about in error scenarios. The logging level was only settable via sysfs, which made it inconvenient for actual debugging. This changes the default to only cover error handling. Link: https://lore.kernel.org/r/20191114100910.6153-6-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Convert 'long' mdelay to msleepVikram Auradkar1-2/+2
For delays longer than 20ms [um]delay isn't recommended. pm80xx_chip_soft_rst starts off with a 500ms delay before it even gets around to checking for the results of the reset. As long as it's at least 500ms it doesn't matter what the scheduler is doing. The delay in the pm8001_exec_internal_task_abort does nothing, and theory is this is a delay to avoid a double-free. Link: https://lore.kernel.org/r/20191114100910.6153-5-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Vikram Auradkar <auradkar@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Initialize variable used as return statusJohn Sperbeck1-1/+1
In pm8001_task_exec(), if the PHY is down, then we return the current value of 'rc'. We need to make sure it's initialized. Link: https://lore.kernel.org/r/20191114100910.6153-4-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: John Sperbeck <jsperbeck@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Make phy enable completion as NULLpeter chang1-1/+3
After the completing the mpi_phy_start_resp, make phy enable completion as NULL. Link: https://lore.kernel.org/r/20191114100910.6153-3-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-19scsi: pm80xx: Fix for SATA device discoverypeter chang1-0/+2
Driver was missing complete() call in mpi_sata_completion which result in SATA abort error handling timing out. That causes the device to be left in the in_recovery state so subsequent commands sent to the device fail and the OS removes access to it. Link: https://lore.kernel.org/r/20191114100910.6153-2-deepak.ukey@microchip.com Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: peter chang <dpf@google.com> Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-01scsi: pm8001: Fix Use plain integer as NULL pointerSaurav Girepunje1-1/+1
Replace assignment of 0 to pointer with NULL assignment. Link: https://lore.kernel.org/r/20191025135010.GA6191@saurav Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-14PCI: Add PCI_STD_NUM_BARS for the number of standard BARsDenis Efremov2-2/+2
Code that iterates over all standard PCI BARs typically uses PCI_STD_RESOURCE_END. However, that requires the unusual test "i <= PCI_STD_RESOURCE_END" rather than something the typical "i < PCI_STD_NUM_BARS". Add a definition for PCI_STD_NUM_BARS and change loops to use the more idiomatic C style to help avoid fencepost errors. Link: https://lore.kernel.org/r/20190927234026.23342-1-efremov@linux.com Link: https://lore.kernel.org/r/20190927234308.23935-1-efremov@linux.com Link: https://lore.kernel.org/r/20190916204158.6889-3-efremov@linux.com Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Sebastian Ott <sebott@linux.ibm.com> # arch/s390/ Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> # video/fbdev/ Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> # pci/controller/dwc/ Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> # scsi/pm8001/ Acked-by: Martin K. Petersen <martin.petersen@oracle.com> # scsi/pm8001/ Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # memstick/
2019-08-07scsi: pm80xx: remove redundant assignments to variable rcColin Ian King1-10/+3
There are several occasions where variable rc is being initialized with a value that is never read and error is being re-assigned a little later on. Clean up the code by removing rc entirely and just returning the return value from the call to pm8001_issue_ssp_tmf Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-07-11scsi: pm80xx: Fixed kernel panic during error recovery for SATA driveDeepak Ukey3-2/+8
Disabling the SATA drive interface cause kernel panic. When the drive Interface is disabled, device should be deregistered after aborting all pending I/Os. Also changed the port recovery timeout to 10000 ms for PM8006 controller. Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-27scsi: pm80xx: Modified the logic to collect IOP event logsDeepak Ukey1-16/+17
Added the logic for collecting IOP log respective to event log size. Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-27scsi: pm80xx: Event log size through sysfsDeepak Ukey1-0/+19
Added support to read event log size from MPI configuration table and export through sysfs. Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-20scsi: libsas: aic94xx: hisi_sas: mvsas: pm8001: Use dev_is_expander()John Garry4-6/+5
Many times in libsas, and in LLDDs which use libsas, the check for an expander device is re-implemented or open coded. Use dev_is_expander() instead. We rename this from sas_dev_type_is_expander() to not spill so many lines in referencing. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Jason Yan <yanaijie@huawei.com> Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-18scsi: pm8001: Fix typo in code commentsWeitao Hou1-1/+1
Fix abord to abort. Signed-off-by: Weitao Hou <houweitaoo@gmail.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-03scsi: pm8001: fix spelling mistake, interupt -> interruptColin Ian King4-7/+7
Rename the functions pm8001_chip_is_our_interupt, pm80xx_chip_is_our_interupt and function pointer is_our_interrupt to fix spelling mistakes. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-03scsi: pm8001: clean up dead code when PM8001_USE_MSIX is definedColin Ian King2-12/+16
When macro PM8001_USE_MSIX is defined there are redundant dead code calls to pm8001_chip_intx_interrupt_{enable|disable} and pm8001_cr32. Clean this up for the defined PM8001_USE_MSIX and undefined PM8001_USE_MSIX cases. [mkp: squashed two patches] Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-25scsi: pm8001: remove set but not used variables 'param, sas_ha'YueHaibing1-4/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/pm8001/pm8001_hwi.c: In function 'mpi_smp_completion': drivers/scsi/pm8001/pm8001_hwi.c:2901:6: warning: variable 'param' set but not used [-Wunused-but-set-variable] drivers/scsi/pm8001/pm8001_hwi.c: In function 'pm8001_bytes_dmaed': drivers/scsi/pm8001/pm8001_hwi.c:3247:24: warning: variable 'sas_ha' set but not used [-Wunused-but-set-variable] They're never used since introduction, so can be removed. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-19scsi: pm8001: clean up various indentation issuesColin Ian King3-28/+28
There are several lines of code where the indentation is at an incorrect level; fix these. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-20Merge tag 'scsi-fixes' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "A set of 17 fixes. Most of these are minor or trivial. The one fix that may be serious is the isci one: the bug can cause hba parameters to be set from uninitialized memory. I don't think it's exploitable, but you never know" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: cxgb4i: add wait_for_completion() scsi: qla1280: set 64bit coherent mask scsi: ufs: Fix geometry descriptor size scsi: megaraid_sas: Retry reads of outbound_intr_status reg scsi: qedi: Add ep_state for login completion on un-reachable targets scsi: ufs: Fix system suspend status scsi: qla2xxx: Use correct number of vectors for online CPUs scsi: hisi_sas: Set protection parameters prior to adding SCSI host scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes scsi: isci: initialize shost fully before calling scsi_add_host() scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs scsi: smartpqi_init: fix boolean expression in pqi_device_remove_start scsi: core: Synchronize request queue PM status only on successful resume scsi: pm80xx: reduce indentation scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param scsi: megaraid_sas: correct an info message scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed scsi: sd: Fix cache_type_store()
2019-01-08scsi: pm80xx: reduce indentationJulia Lawall1-1/+1
Delete tab aligning a statement with the right hand side of a preceding assignment rather than the left hand side. Found with the help of Coccinelle. [mkp: added space] Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08cross-tree: phase out dma_zalloc_coherent()Luis Chamberlain1-2/+2
We already need to zero out memory for dma_alloc_coherent(), as such using dma_zalloc_coherent() is superflous. Phase it out. This change was generated with the following Coccinelle SmPL patch: @ replace_dma_zalloc_coherent @ expression dev, size, data, handle, flags; @@ -dma_zalloc_coherent(dev, size, handle, flags) +dma_alloc_coherent(dev, size, handle, flags) Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> [hch: re-ran the script on the latest tree] Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-12-18scsi: flip the default on use_clusteringChristoph Hellwig1-1/+0
Most SCSI drivers want to enable "clustering", that is merging of segments so that they might span more than a single page. Remove the ENABLE_CLUSTERING define, and require drivers to explicitly set DISABLE_CLUSTERING to disable this feature. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: pm8001: switch to generic DMA APIChristoph Hellwig4-49/+31
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-17scsi: pm80xx: Remove set but not used variable 'page_code'YueHaibing1-2/+1
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/pm8001/pm80xx_hwi.c: In function 'pm8001_set_phy_profile': drivers/scsi/pm8001/pm80xx_hwi.c:4679:6: warning: variable 'page_code' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-17scsi: pm80xx: Remove set but not used variable 'device_id'YueHaibing1-4/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/pm8001/pm8001_sas.c: In function 'pm8001_I_T_nexus_event_handler': drivers/scsi/pm8001/pm8001_sas.c:1052:6: warning: variable 'device_id' set but not used [-Wunused-but-set-variable] drivers/scsi/pm8001/pm8001_sas.c: In function 'pm8001_abort_task': drivers/scsi/pm8001/pm8001_sas.c:1191:6: warning: variable 'device_id' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11scsi: pm80xx: Update driver version to 0.1.39Deepak Ukey1-1/+1
Updated the driver version from 0.1.38 to 0.1.39. Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11scsi: pm80xx: Fixed system hang issue during kexec bootDeepak Ukey5-6/+91
When the firmware is not responding, execution of kexec boot causes a system hang. When firmware assertion happened, driver get notified with interrupt vector updated in MPI configuration table. Then, the driver will read scratchpad register and set controller_fatal_error flag to true. Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11scsi: pm80xx: Corrected dma_unmap_sg() parameterDeepak Ukey1-1/+1
For the function dma_unmap_sg(), the <nents> parameter should be number of elements in the scatter list prior to the mapping, not after the mapping. Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-11scsi: pm80xx: Fix for phy enable/disable functionalityDeepak Ukey7-17/+49
Added proper mask for phy id in mpi_phy_stop_resp(). Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> Signed-off-by: Viswas G <Viswas.G@microchip.com> Acked-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-12treewide: kzalloc() -> kcalloc()Kees Cook1-1/+1
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 00:53:03 +0000