1. 07 Sep, 2020 12 commits
  2. 06 Sep, 2020 5 commits
    • Christophe JAILLET's avatar
      enic: switch from 'pci_' to 'dma_' API · 02a20d4f
      Christophe JAILLET authored
      The wrappers in include/linux/pci-dma-compat.h should go away.
      
      The patch has been generated with the coccinelle script below and has been
      hand modified to replace GFP_ with a correct flag.
      It has been compile tested.
      
      When memory is allocated in 'vnic_dev_classifier()', 'vnic_dev_fw_info()',
      'vnic_dev_notify_set()' and 'vnic_dev_stats_dump()' (vnic_dev.c) GFP_ATOMIC
      must be used because its callers take a spinlock before calling these
      functions.
      
      When memory is allocated in '__enic_set_rsskey()' and 'enic_set_rsscpu()'
      GFP_ATOMIC must be used because they can be called with a spinlock.
      The call chain is:
        enic_reset                         <-- takes 'enic->enic_api_lock'
          --> enic_set_rss_nic_cfg
            --> enic_set_rsskey
              --> __enic_set_rsskey        <-- uses dma_alloc_coherent
            --> enic_set_rsscpu            <-- uses dma_alloc_coherent
      
      When memory is allocated in 'vnic_dev_init_prov2()' GFP_ATOMIC must be used
      because a spinlock is hidden in the ENIC_DEVCMD_PROXY_BY_INDEX macro, when
      this function is called in 'enic_set_port_profile()'.
      
      When memory is allocated in 'vnic_dev_alloc_desc_ring()' GFP_KERNEL can be
      used because it is only called from 5 functions ('vnic_dev_init_devcmd2()',
      'vnic_cq_alloc()', 'vnic_rq_alloc()', 'vnic_wq_alloc()' and
      'enic_wq_devcmd2_alloc()'.
      
        'vnic_dev_init_devcmd2()': already uses GFP_KERNEL and no lock is taken
           in the between.
        'enic_wq_devcmd2_alloc()': is called from ' vnic_dev_init_devcmd2()'
           which already uses GFP_KERNEL and no lock is taken in the between.
        'vnic_cq_alloc()', 'vnic_rq_alloc()', 'vnic_wq_alloc()': are called
           from 'enic_alloc_vnic_resources()'
      'enic_alloc_vnic_resources()' has only 2 call chains:
      
        1) enic_probe
            --> enic_dev_init
              --> enic_alloc_vnic_resources
      'enic_probe()' is a probe function and no lock is taken in the between
      
        2) enic_set_ringparam
            --> enic_alloc_vnic_resources
      'enic_set_ringparam()' is a .set_ringparam function (see struct
      ethtool_ops). It seems to only take a mutex and no spinlock.
      
      So all paths are safe to use GFP_KERNEL.
      
      @@
      @@
      -    PCI_DMA_BIDIRECTIONAL
      +    DMA_BIDIRECTIONAL
      
      @@
      @@
      -    PCI_DMA_TODEVICE
      +    DMA_TO_DEVICE
      
      @@
      @@
      -    PCI_DMA_FROMDEVICE
      +    DMA_FROM_DEVICE
      
      @@
      @@
      -    PCI_DMA_NONE
      +    DMA_NONE
      
      @@
      expression e1, e2, e3;
      @@
      -    pci_alloc_consistent(e1, e2, e3)
      +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
      
      @@
      expression e1, e2, e3;
      @@
      -    pci_zalloc_consistent(e1, e2, e3)
      +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_free_consistent(e1, e2, e3, e4)
      +    dma_free_coherent(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_map_single(e1, e2, e3, e4)
      +    dma_map_single(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_single(e1, e2, e3, e4)
      +    dma_unmap_single(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4, e5;
      @@
      -    pci_map_page(e1, e2, e3, e4, e5)
      +    dma_map_page(&e1->dev, e2, e3, e4, e5)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_page(e1, e2, e3, e4)
      +    dma_unmap_page(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_map_sg(e1, e2, e3, e4)
      +    dma_map_sg(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_sg(e1, e2, e3, e4)
      +    dma_unmap_sg(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
      +    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_single_for_device(e1, e2, e3, e4)
      +    dma_sync_single_for_device(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
      +    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
      +    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2;
      @@
      -    pci_dma_mapping_error(e1, e2)
      +    dma_mapping_error(&e1->dev, e2)
      
      @@
      expression e1, e2;
      @@
      -    pci_set_dma_mask(e1, e2)
      +    dma_set_mask(&e1->dev, e2)
      
      @@
      expression e1, e2;
      @@
      -    pci_set_consistent_dma_mask(e1, e2)
      +    dma_set_coherent_mask(&e1->dev, e2)
      Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      02a20d4f
    • Linus Walleij's avatar
      net: gemini: Clean up phy registration · 3e813d61
      Linus Walleij authored
      It's nice if the phy is online before we register the netdev
      so try to do that first.
      
      Stop trying to do "second tried" to register the phy, it
      works perfectly fine the first time.
      
      Stop remvoving the phy in uninit. Remove it when the
      driver is remove():d, symmetric to where it is added, in
      probe().
      Suggested-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Reported-by: default avatarDavid Miller <davem@davemloft.net>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      3e813d61
    • Jonathan Neuschäfer's avatar
      ee1a4c84
    • Linus Walleij's avatar
      net: dsa: rtl8366rb: Support setting MTU · 5f4a8ef3
      Linus Walleij authored
      This implements the missing MTU setting for the RTL8366RB
      switch.
      
      Apart from supporting jumboframes, this rids us of annoying
      boot messages like this:
      realtek-smi switch: nonfatal error -95 setting MTU on port 0
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      5f4a8ef3
    • Wang Hai's avatar
      net/packet: Remove unused macro BLOCK_PRIV · 383e3f3e
      Wang Hai authored
      BLOCK_PRIV is never used after it was introduced.
      So better to remove it.
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarWang Hai <wanghai38@huawei.com>
      Acked-by: default avatarWillem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      383e3f3e
  3. 05 Sep, 2020 14 commits
  4. 04 Sep, 2020 9 commits
    • Linus Torvalds's avatar
      Merge tag 's390-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · c70672d8
      Linus Torvalds authored
      Pull s390 fixes from Vasily Gorbik:
      
       - Fix GENERIC_LOCKBREAK dependency on PREEMPTION in Kconfig broken
         because of a typo
      
       - Update defconfigs
      
      * tag 's390-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390: update defconfigs
        s390: fix GENERIC_LOCKBREAK dependency typo in Kconfig
      c70672d8
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 09274aed
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas:
      
       - Fix the loading of modules built with binutils-2.35. This version
         produces writable and executable .text.ftrace_trampoline section
         which is rejected by the kernel.
      
       - Remove the exporting of cpu_logical_map() as the Tegra driver has now
         been fixed and no longer uses this function.
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64/module: set trampoline section flags regardless of CONFIG_DYNAMIC_FTRACE
        arm64: Remove exporting cpu_logical_map symbol
      09274aed
    • Linus Torvalds's avatar
      Merge tag 'mips_fixes_5.9_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux · 16bf121b
      Linus Torvalds authored
      Pull MIPS fixes from Thomas Bogendoerfer:
       "A few MIPS fixes:
      
         - fallthrough fallout fix
      
         - BMIPS fixes
      
         - MSA fix to avoid leaking MSA register contents
      
         - Loongson perf and cpu feature fix
      
         - SNI interrupt fix"
      
      * tag 'mips_fixes_5.9_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
        MIPS: SNI: Fix SCSI interrupt
        MIPS: add missing MSACSR and upper MSA initialization
        MIPS: perf: Fix wrong check condition of Loongson event IDs
        mips/oprofile: Fix fallthrough placement
        MIPS: Loongson64: Remove unnecessary inclusion of boot_param.h
        MIPS: BMIPS: Also call bmips_cpu_setup() for secondary cores
        MIPS: mm: BMIPS5000 has inclusive physical caches
        MIPS: Loongson64: Do not override watch and ejtag feature
      16bf121b
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v5.9-2' of... · 41bef91c
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fixes from Masahiro Yamada:
      
       - fix documents
      
       - fix warning in 'make localmodconfig'
      
      * tag 'kbuild-fixes-v5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kconfig: remove redundant assignment prompt = prompt
        kbuild: Documentation: clean up makefiles.rst
        kconfig: streamline_config.pl: check defined(ENV variable) before using it
        Documentation/llvm: Improve formatting of commands, variables, and arguments
      41bef91c
    • Linus Torvalds's avatar
      Merge tag 'pm-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · f162626a
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "These fix reference counting in the operating performance points (OPP)
        framework and address a few intel_pstate driver issues, mostly related
        to switching driver operation modes and similar with hardware-managed
        P-states (HWP) enabled.
      
        Specifics:
      
         - Fix reference counting of operating performance points (OPP) tables
           (Viresh Kumar).
      
         - Address intel_pstate driver interface issues, mostly related to
           switching operation modes and handling CPU offline and online and
           system-wide suspend/resume with hardware-managed P-states (HWP)
           enabled (Rafael Wysocki).
      
         - Fix the maximum frequency computation in the intel_pstate driver
           with turbo P-states disabled by the platform firmware and HWP
           enabled (Francisco Jerez)"
      
      * tag 'pm-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: intel_pstate: Fix intel_pstate_get_hwp_max() for turbo disabled
        cpufreq: intel_pstate: Free memory only when turning off
        cpufreq: intel_pstate: Add ->offline and ->online callbacks
        cpufreq: intel_pstate: Tweak the EPP sysfs interface
        cpufreq: intel_pstate: Update cached EPP in the active mode
        cpufreq: intel_pstate: Refuse to turn off with HWP enabled
        opp: Don't drop reference for an OPP table that was never parsed
      f162626a
    • Linus Torvalds's avatar
      Merge tag 'libata-5.9-2020-09-04' of git://git.kernel.dk/linux-block · d824e080
      Linus Torvalds authored
      Pull libata fixes from Jens Axboe:
      
       - improve Sandisks ATA_HORKAGE on NCQ (Tejun)
      
       - link printk cleanup (Xu)
      
      * tag 'libata-5.9-2020-09-04' of git://git.kernel.dk/linux-block:
        libata: implement ATA_HORKAGE_MAX_TRIM_128M and apply to Sandisks
        ata: ahci: use ata_link_info() instead of ata_link_printk()
      d824e080
    • Linus Torvalds's avatar
      Merge tag 'block-5.9-2020-09-04' of git://git.kernel.dk/linux-block · 8075fc3b
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A bit larger than usual this week, mostly due to the NVMe fixes
        arriving late for -rc3 and hence didn't make last weeks pull request.
      
         - NVMe:
              - instance leak and io boundary fixes from Keith
              - fc locking fix from Christophe
              - various tcp/rdma reset during traffic fixes from Sagi
              - pci use-after-free fix from Tong
              - tcp target null deref fix from Ziye
      
         - Locking fix for partition removal (Christoph)
      
         - Ensure bdi->io_pages is always set (me)
      
         - Fixup for hd struct reference (Ming)
      
         - Fix for zero length bvecs (Ming)
      
         - Two small blk-iocost fixes (Tejun)"
      
      * tag 'block-5.9-2020-09-04' of git://git.kernel.dk/linux-block:
        block: allow for_each_bvec to support zero len bvec
        blk-stat: make q->stats->lock irqsafe
        blk-iocost: ioc_pd_free() shouldn't assume irq disabled
        block: fix locking in bdev_del_partition
        block: release disk reference in hd_struct_free_work
        block: ensure bdi->io_pages is always initialized
        nvme-pci: cancel nvme device request before disabling
        nvme: only use power of two io boundaries
        nvme: fix controller instance leak
        nvmet-fc: Fix a missed _irqsave version of spin_lock in 'nvmet_fc_fod_op_done()'
        nvme: Fix NULL dereference for pci nvme controllers
        nvme-rdma: fix reset hang if controller died in the middle of a reset
        nvme-rdma: fix timeout handler
        nvme-rdma: serialize controller teardown sequences
        nvme-tcp: fix reset hang if controller died in the middle of a reset
        nvme-tcp: fix timeout handler
        nvme-tcp: serialize controller teardown sequences
        nvme: have nvme_wait_freeze_timeout return if it timed out
        nvme-fabrics: don't check state NVME_CTRL_NEW for request acceptance
        nvmet-tcp: Fix NULL dereference when a connect data comes in h2cdata pdu
      8075fc3b
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.9-2020-09-04' of git://git.kernel.dk/linux-block · d849ca48
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
      
       - EAGAIN with O_NONBLOCK retry fix
      
       - Two small fixes for registered files (Jiufei)
      
      * tag 'io_uring-5.9-2020-09-04' of git://git.kernel.dk/linux-block:
        io_uring: no read/write-retry on -EAGAIN error and O_NONBLOCK marked file
        io_uring: set table->files[i] to NULL when io_sqe_file_register failed
        io_uring: fix removing the wrong file in __io_sqe_files_update()
      d849ca48
    • Linus Torvalds's avatar
      Merge tag 'thermal-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux · 2fb54791
      Linus Torvalds authored
      Pull thermal fixes from Daniel Lezcano:
      
       - Fix bogus thermal shutdowns for omap4430 where bogus values resulting
         from an incorrect ADC conversion are too high and fire an emergency
         shutdown (Tony Lindgren)
      
       - Don't suppress negative temp for qcom spmi as they are valid and
         userspace needs them (Veera Vegivada)
      
       - Fix use-after-free in thermal_zone_device_unregister reported by
         Kasan (Dmitry Osipenko)
      
      * tag 'thermal-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
        thermal: core: Fix use-after-free in thermal_zone_device_unregister()
        thermal: qcom-spmi-temp-alarm: Don't suppress negative temp
        thermal: ti-soc-thermal: Fix bogus thermal shutdowns for omap4430
      2fb54791