Commit Graph

948892 Commits (94dea151bf3651c01acb12a38ca75ba9d26ea4da)

Author SHA1 Message Date
Christoph Hellwig d3fa60d7bf dma-mapping: move the remaining DMA API calls out of line
For a long time the DMA API has been implemented inline in dma-mapping.h,
but the function bodies can be quite large.  Move them all out of line.

This also removes all the dma_direct_* exports as those are just
implementation details and should never be used by drivers directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2020-07-16 16:58:33 +02:00
Jens Axboe 1f273e255b Merge branch 'nvme-5.8' of git://git.infradead.org/nvme into block-5.8
Pull NVMe fix from Christoph.

* 'nvme-5.8' of git://git.infradead.org/nvme:
  nvme: explicitly update mpath disk capacity on revalidation
2020-07-16 08:58:14 -06:00
Rafael J. Wysocki a6c99daa8c Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull an operating performance points (OPP) framework fix for 5.8-rc6 from
Viresh Kumar:

"This fixes freeing of the OPP entries for the legacy OPP table type (v1)."

* 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  opp: Increase parsed_static_opps in _of_add_opp_table_v1()
2020-07-16 16:48:13 +02:00
Anthony Iliopoulos 05b29021fb nvme: explicitly update mpath disk capacity on revalidation
Commit 3b4b19721e ("nvme: fix possible deadlock when I/O is
blocked") reverted multipath head disk revalidation due to deadlocks
caused by holding the bd_mutex during revalidate.

Updating the multipath disk blockdev size is still required though for
userspace to be able to observe any resizing while the device is
mounted. Directly update the bdev inode size to avoid unnecessarily
holding the bdev->bd_mutex.

Fixes: 3b4b19721e ("nvme: fix possible deadlock when I/O is
blocked")

Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-16 16:40:27 +02:00
Lee Jones de4334f7da pinctrl: pinctrl-amd: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
'struct amd_gpio_acpi_match' becomes defined but unused.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinctrl-amd.c:959:36: warning: ‘amd_gpio_acpi_match’ defined but not used [-Wunused-const-variable=]
 959 | static const struct acpi_device_id amd_gpio_acpi_match[] = {

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Ken Xue <Ken.Xue@amd.com>
Cc: "Wu, Jeff" <Jeff.Wu@amd.com>
Cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Cc: Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-26-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:58:12 +02:00
Lee Jones 192b752e0e pinctrl: mvebu: pinctrl-armada-37xx: Update documentation block for 'struct armada_37xx_pin_group'
Correct misspellings and provide missing entries.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:68: warning: Function parameter or member 'start_pin' not described in 'armada_37xx_pin_group'
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:68: warning: Function parameter or member 'val' not described in 'armada_37xx_pin_group'
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:68: warning: Function parameter or member 'extra_pin' not described in 'armada_37xx_pin_group'
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c:68: warning: Function parameter or member 'extra_npins' not described in 'armada_37xx_pin_group'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-25-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:58:12 +02:00
Lee Jones fb5dd4297d pinctrl: meson: pinctrl-meson-a1: Remove unused const variable 'i2c_slave_groups'
It has never been used.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/meson/pinctrl-meson-a1.c:749:27: warning: ‘i2c_slave_groups’ defined but not used [-Wunused-const-variable=]
 749 | static const char const i2c_slave_groups[] = {
 | ^~~~~~~~~~~~~~~~

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Qianggui Song <qianggui.song@amlogic.com>
Cc: linux-amlogic@lists.infradead.org
Link: https://lore.kernel.org/r/20200713144930.1034632-24-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:58:12 +02:00
Lee Jones 92cadf68e5 pinctrl: tegra: pinctrl-tegra194: Do not initialise field twice
Both PIN_PINGROUP_ENTRY_Y() and DRV_PINGROUP_ENTRY_Y() macros are
called for each of the 2 pin groups defined here, and both of them
initialise 'drv_reg', causing the compiler to complain.

Only initialise 'drv_reg' once.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/tegra/pinctrl-tegra194.c:71:14: warning: initialized field overwritten [-Woverride-init]
 71 | .drv_reg = ((r)), | ^
 drivers/pinctrl/tegra/pinctrl-tegra194.c:105:2: note: in expansion of macro ‘DRV_PINGROUP_ENTRY_Y’
 105 | DRV_PINGROUP_ENTRY_Y(0x14004, 12, 5, 20, 5, -1, -1, -1, -1, 0)
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:124:3: note: in expansion of macro ‘drive_pex_l5_clkreq_n_pgg0’
 124 | drive_##pg_name, | ^~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:128:2: note: in expansion of macro ‘PINGROUP’
 128 | PINGROUP(pex_l5_clkreq_n_pgg0, PE5, RSVD1, RSVD2, RSVD3, 0x14000, 0,
 | ^~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:71:14: note: (near initialization for ‘tegra194_groups[0].drv_reg’)
 71 | .drv_reg = ((r)), | ^
 drivers/pinctrl/tegra/pinctrl-tegra194.c:105:2: note: in expansion of macro ‘DRV_PINGROUP_ENTRY_Y’
 105 | DRV_PINGROUP_ENTRY_Y(0x14004, 12, 5, 20, 5, -1, -1, -1, -1, 0)
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:124:3: note: in expansion of macro ‘drive_pex_l5_clkreq_n_pgg0’
 124 | drive_##pg_name, | ^~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:128:2: note: in expansion of macro ‘PINGROUP’
 128 | PINGROUP(pex_l5_clkreq_n_pgg0, PE5, RSVD1, RSVD2, RSVD3, 0x14000, 0,
 | ^~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:71:14: warning: initialized field overwritten [-Woverride-init]
 71 | .drv_reg = ((r)), | ^
 drivers/pinctrl/tegra/pinctrl-tegra194.c:107:2: note: in expansion of macro ‘DRV_PINGROUP_ENTRY_Y’
 107 | DRV_PINGROUP_ENTRY_Y(0x1400c, 12, 5, 20, 5, -1, -1, -1, -1, 0)
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:124:3: note: in expansion of macro ‘drive_pex_l5_rst_n_pgg1’
 124 | drive_##pg_name, | ^~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:130:2: note: in expansion of macro ‘PINGROUP’
 130 | PINGROUP(pex_l5_rst_n_pgg1, PE5, RSVD1, RSVD2, RSVD3, 0x14008, 0,
 | ^~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:71:14: note: (near initialization for ‘tegra194_groups[1].drv_reg’)
 71 | .drv_reg = ((r)), | ^
 drivers/pinctrl/tegra/pinctrl-tegra194.c:107:2: note: in expansion of macro ‘DRV_PINGROUP_ENTRY_Y’
 107 | DRV_PINGROUP_ENTRY_Y(0x1400c, 12, 5, 20, 5, -1, -1, -1, -1, 0)
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:124:3: note: in expansion of macro ‘drive_pex_l5_rst_n_pgg1’
 124 | drive_##pg_name, | ^~~~~~
 drivers/pinctrl/tegra/pinctrl-tegra194.c:130:2: note: in expansion of macro ‘PINGROUP’
 130 | PINGROUP(pex_l5_rst_n_pgg1, PE5, RSVD1, RSVD2, RSVD3, 0x14008, 0,
 | ^~~~~~~~

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-23-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:58:12 +02:00
Lee Jones 0ba5ab002b pinctrl: pinctrl-single: Fix struct/function documentation blocks
Add some missing attributes/parameter descriptions, remove other
superfluous ones, add struct header titles and fix misspellings.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinctrl-single.c:50: warning: Function parameter or member 'mask' not described in 'pcs_func_vals'
 drivers/pinctrl/pinctrl-single.c:97: warning: Function parameter or member 'conf' not described in 'pcs_function'
 drivers/pinctrl/pinctrl-single.c:97: warning: Function parameter or member 'nconfs' not described in 'pcs_function'
 drivers/pinctrl/pinctrl-single.c:659: warning: Function parameter or member 'pin_pos' not described in 'pcs_add_pin'
 drivers/pinctrl/pinctrl-single.c:985: warning: Excess function parameter 'pctldev' description in 'pcs_parse_one_pinctrl_entry'
 drivers/pinctrl/pinctrl-single.c:1357: warning: Cannot understand  * @reg:        virtual address of interrupt register
 drivers/pinctrl/pinctrl-single.c:1377: warning: Function parameter or member 'pcs_soc' not described in 'pcs_irq_set'
 drivers/pinctrl/pinctrl-single.c:1377: warning: Function parameter or member 'irq' not described in 'pcs_irq_set'
 drivers/pinctrl/pinctrl-single.c:1377: warning: Function parameter or member 'enable' not described in 'pcs_irq_set'
 drivers/pinctrl/pinctrl-single.c:1458: warning: Function parameter or member 'pcs_soc' not described in 'pcs_irq_handle'
 drivers/pinctrl/pinctrl-single.c:1458: warning: Excess function parameter 'pcs_irq' description in 'pcs_irq_handle'
 drivers/pinctrl/pinctrl-single.c:1506: warning: Excess function parameter 'irq' description in 'pcs_irq_chain_handler'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: linux-omap@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-22-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:58:12 +02:00
Douglas Anderson c3c0c2e18d pinctrl: qcom: Handle broken/missing PDC dual edge IRQs on sc7180
Depending on how you look at it, you can either say that:
a) There is a PDC hardware issue (with the specific IP rev that exists
   on sc7180) that causes the PDC not to work properly when configured
   to handle dual edges.
b) The dual edge feature of the PDC hardware was only added in later
   HW revisions and thus isn't in all hardware.

Regardless of how you look at it, let's work around the lack of dual
edge support by only ever letting our parent see requests for single
edge interrupts on affected hardware.

NOTE: it's possible that a driver requesting a dual edge interrupt
might get several edges coalesced into a single IRQ.  For instance if
a line starts low and then goes high and low again, the driver that
requested the IRQ is not guaranteed to be called twice.  However, it
is guaranteed that once the driver's interrupt handler starts running
its first instruction that any new edges coming in will cause the
interrupt to fire again.  This is relatively commonplace for dual-edge
gpio interrupts (many gpio controllers require software to emulate
dual edge with single edge) so client drivers should be setup to
handle it.

Fixes: e35a6ae0eb ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200714080254.v3.1.Ie0d730120b232a86a4eac1e2909bcbec844d1766@changeid
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:41:41 +02:00
Christoph Hellwig d1100488c3 md: simplify md_setup_drive
Move the loop over the possible arrays into the caller to remove a level
of indentation for the whole function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: NeilBrown <neilb@suse.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:35:28 +02:00
Christoph Hellwig 1a6a050620 md: remove the kernel version of md_u.h
mdp_major can just move to drivers/md/md.h.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:35:21 +02:00
Christoph Hellwig a1d6bc0189 md: remove the autoscan partition re-read
devfs is long gone, and autoscan works just fine without this these days.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: NeilBrown <neilb@suse.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:35:16 +02:00
Christoph Hellwig d82fa81c23 md: replace the RAID_AUTORUN ioctl with a direct function call
Instead of using a spcial RAID_AUTORUN ioctl that only exists for
non-modular builds and is only called from the early init code, just
call the actual function directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: NeilBrown <neilb@suse.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:35:03 +02:00
Christoph Hellwig 4f5b246b37 md: move the early init autodetect code to drivers/md/
Just like the NFS and CIFS root code this better lives with the
driver it is tightly integrated with.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:34:47 +02:00
Christoph Hellwig 881627f353 init: remove the bstat helper
The only caller of the bstat function becomes cleaner and simpler when
open coding the function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: NeilBrown <neilb@suse.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:34:42 +02:00
Christoph Hellwig 9e96c8c0e9 fs: add a vfs_fchmod helper
Add a helper for struct file based chmode operations.  To be used by
the initramfs code soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:33:04 +02:00
Christoph Hellwig c04011fe8c fs: add a vfs_fchown helper
Add a helper for struct file based chown operations.  To be used by
the initramfs code soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-16 15:33:00 +02:00
Lee Jones e1524ea84a pinctrl: pinctrl-rockchip: Fix a bunch of kerneldoc misdemeanours
Demote headers which are clearly not kerneldoc, provide titles for
struct definition blocks, fix API slip (bitrot) misspellings and
provide some missing entries.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinctrl-rockchip.c:82: warning: cannot understand function prototype: 'struct rockchip_iomux '
 drivers/pinctrl/pinctrl-rockchip.c:97: warning: Enum value 'DRV_TYPE_IO_DEFAULT' not described in enum 'rockchip_pin_drv_type'
 drivers/pinctrl/pinctrl-rockchip.c:97: warning: Enum value 'DRV_TYPE_IO_1V8_OR_3V0' not described in enum 'rockchip_pin_drv_type'
 drivers/pinctrl/pinctrl-rockchip.c:97: warning: Enum value 'DRV_TYPE_IO_1V8_ONLY' not described in enum 'rockchip_pin_drv_type'
 drivers/pinctrl/pinctrl-rockchip.c:97: warning: Enum value 'DRV_TYPE_IO_1V8_3V0_AUTO' not described in enum 'rockchip_pin_drv_type'
 drivers/pinctrl/pinctrl-rockchip.c:97: warning: Enum value 'DRV_TYPE_IO_3V3_ONLY' not described in enum 'rockchip_pin_drv_type'
 drivers/pinctrl/pinctrl-rockchip.c:97: warning: Enum value 'DRV_TYPE_MAX' not described in enum 'rockchip_pin_drv_type'
 drivers/pinctrl/pinctrl-rockchip.c:106: warning: Enum value 'PULL_TYPE_IO_DEFAULT' not described in enum 'rockchip_pin_pull_type'
 drivers/pinctrl/pinctrl-rockchip.c:106: warning: Enum value 'PULL_TYPE_IO_1V8_ONLY' not described in enum 'rockchip_pin_pull_type'
 drivers/pinctrl/pinctrl-rockchip.c:106: warning: Enum value 'PULL_TYPE_MAX' not described in enum 'rockchip_pin_pull_type'
 drivers/pinctrl/pinctrl-rockchip.c:109: warning: Cannot understand  * @drv_type: drive strength variant using rockchip_perpin_drv_type
 on line 109 - I thought it was a doc line
 drivers/pinctrl/pinctrl-rockchip.c:122: warning: Cannot understand  * @reg_base: register base of the gpio bank
 on line 109 - I thought it was a doc line
 drivers/pinctrl/pinctrl-rockchip.c:325: warning: Function parameter or member 'route_location' not described in 'rockchip_mux_route_data'
 drivers/pinctrl/pinctrl-rockchip.c:328: warning: Cannot understand  */
 on line 109 - I thought it was a doc line
 drivers/pinctrl/pinctrl-rockchip.c:375: warning: Function parameter or member 'data' not described in 'rockchip_pin_group'
 drivers/pinctrl/pinctrl-rockchip.c:387: warning: Function parameter or member 'ngroups' not described in 'rockchip_pmx_func'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: linux-rockchip@lists.infradead.org
Link: https://lore.kernel.org/r/20200713144930.1034632-20-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:13:55 +02:00
Lee Jones 21f9798500 pinctrl: pinctrl-bm1880: Rename ill documented struct attribute entries
Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinctrl-bm1880.c:40: warning: Function parameter or member 'pctrldev' not described in 'bm1880_pinctrl'
 drivers/pinctrl/pinctrl-bm1880.c:40: warning: Function parameter or member 'pinconf' not described in 'bm1880_pinctrl'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200713144930.1034632-19-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:13:55 +02:00
Lee Jones aa78655d49 pinctrl: pinctrl-at91: Demote non-kerneldoc header and complete another
The documentation header for 'struct at91_pinctrl_mux_ops' was missing
entries for {g,s}et_drivestrength and {g,s}et_slewrate.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinctrl-at91.c:77: warning: cannot understand function prototype: 'enum drive_strength_bit '
 drivers/pinctrl/pinctrl-at91.c:187: warning: Function parameter or member 'get_drivestrength' not described in 'at91_pinctrl_mux_ops'
 drivers/pinctrl/pinctrl-at91.c:187: warning: Function parameter or member 'set_drivestrength' not described in 'at91_pinctrl_mux_ops'
 drivers/pinctrl/pinctrl-at91.c:187: warning: Function parameter or member 'get_slewrate' not described in 'at91_pinctrl_mux_ops'
 drivers/pinctrl/pinctrl-at91.c:187: warning: Function parameter or member 'set_slewrate' not described in 'at91_pinctrl_mux_ops'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-18-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:13:55 +02:00
Lee Jones 898503ee0b pinctrl: pinctrl-at91-pio4: PM related attribute descriptions
Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinctrl-at91-pio4.c:132: warning: Function parameter or member 'pm_wakeup_sources' not described in 'atmel_pioctrl'
 drivers/pinctrl/pinctrl-at91-pio4.c:132: warning: Function parameter or member 'pm_suspend_backup' not described in 'atmel_pioctrl'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-16-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:39 +02:00
Lee Jones b4dab7743e pinctrl: pinconf-generic: Add function parameter description 'pctldev'
Fix a spelling/typo while we're here.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinconf-generic.c:242: warning: Function parameter or member 'pctldev' not described in 'pinconf_generic_parse_dt_config'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200713144930.1034632-15-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:39 +02:00
Lee Jones 0b93a57a6a pinctrl: devicetree: Add one new attribute description and rename another two
Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/devicetree.c:27: warning: Function parameter or member 'map' not described in 'pinctrl_dt_map'
 drivers/pinctrl/devicetree.c:27: warning: Function parameter or member 'num_maps' not described in 'pinctrl_dt_map'
 drivers/pinctrl/devicetree.c:409: warning: Function parameter or member 'out_args' not described in 'pinctrl_parse_index_with_args'
 drivers/pinctrl/devicetree.c:409: warning: Excess function parameter 'out_arts' description in 'pinctrl_parse_index_with_args'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200713144930.1034632-14-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:39 +02:00
Lee Jones d340351f81 pinctrl: pinmux: Add some missing parameter descriptions
And rename another which has probably bitrotted.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/pinmux.c:83: warning: Function parameter or member 'pctldev' not described in 'pinmux_can_be_used_for_gpio'
 drivers/pinctrl/pinmux.c:108: warning: Function parameter or member 'pctldev' not described in 'pin_request'
 drivers/pinctrl/pinmux.c:261: warning: Function parameter or member 'gpio' not described in 'pinmux_request_gpio'
 drivers/pinctrl/pinmux.c:751: warning: Function parameter or member 'selector' not described in 'pinmux_generic_get_function'
 drivers/pinctrl/pinmux.c:751: warning: Excess function parameter 'group_selector' description in 'pinmux_generic_get_function'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200713144930.1034632-13-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 9c340bbbf7 pinctrl: core: Fix a bunch of kerneldoc issues
Most are likely due to bitrot/API slip.  Some are formatting issues.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/core.c:167: warning: Function parameter or member 'pin' not described in 'pin_get_name'
 drivers/pinctrl/core.c:167: warning: Excess function parameter 'name' description in 'pin_get_name'
 drivers/pinctrl/core.c:584: warning: Function parameter or member 'selector' not described in 'pinctrl_generic_get_group'
 drivers/pinctrl/core.c:584: warning: Excess function parameter 'gselector' description in 'pinctrl_generic_get_group'
 drivers/pinctrl/core.c:1356: error: Cannot parse struct or union!
 drivers/pinctrl/core.c:1458: warning: Function parameter or member 'map' not described in 'pinctrl_unregister_mappings'
 drivers/pinctrl/core.c:1458: warning: Excess function parameter 'maps' description in 'pinctrl_unregister_mappings'
 drivers/pinctrl/core.c:2239: warning: Function parameter or member 'pctldev' not described in 'devm_pinctrl_register_and_init'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200713144930.1034632-12-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones ea0b879b5d pinctrl: mediatek: pinctrl-mtk-common-v2: Mark 'mtk_default_register_base_names' as __maybe_unused
Not all sourcefiles which end up including pinctrl-mtk-common-v2.h make use
of 'mtk_default_register_base_names' and there is nowhere we can place the
definition to void the need for __maybe_unused except its own headerfile,
which seems like overkill.  So instead we tell the compiler that it's okay
for it to be unused by some of the consumers.

Fixes the following W=1 kernel build warning(s):

 In file included from drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c:19:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-moore.h:25,
 from drivers/pinctrl/mediatek/pinctrl-moore.c:12:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-paris.c:15:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-mtk-mt6797.h:15,
 from drivers/pinctrl/mediatek/pinctrl-mt6797.c:13:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-mtk-mt8183.h:12,
 from drivers/pinctrl/mediatek/pinctrl-mt8183.c:9:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In file included from drivers/pinctrl/mediatek/pinctrl-paris.h:27,
 from drivers/pinctrl/mediatek/pinctrl-mtk-mt6765.h:12,
 from drivers/pinctrl/mediatek/pinctrl-mt6765.c:10:
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h:83:27: warning: ‘mtk_default_register_base_names’ defined but not used [-Wunused-const-variable=]
 83 | static const char const mtk_default_register_base_names[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Cc: Sean Wang <sean.wang@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org
Link: https://lore.kernel.org/r/20200713144930.1034632-11-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones cba053ff5e pinctrl: qcom: pinctrl-msm8976: Remove unused variable 'nav_tsync_groups'
Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/qcom/pinctrl-msm8976.c:802:27: warning: ‘nav_tsync_groups’ defined but not used [-Wunused-const-variable=]
 802 | static const char
 const nav_tsync_groups[] = {
 | ^~~~~~~~~~~~~~~~

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Del Regno <kholk11@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-10-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 0dc0bdf069 pinctrl: samsung: pinctrl-s3c64xx: Fix formatting issues
Kerneldoc struct titles must be followed by whitespace else the
checker gets confused.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/samsung/pinctrl-s3c64xx.c:212: warning: cannot understand function prototype: 'struct s3c64xx_eint0_domain_data '

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-9-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 26b72162e1 pinctrl: samsung: pinctrl-s3c24xx: Fix formatting issues
Kerneldoc struct titles must be followed by whitespace.  Also attributes
need to be in the format '@.*: ' else the checker gets confused.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/samsung/pinctrl-s3c24xx.c💯 warning: cannot understand function prototype: 'struct s3c24xx_eint_domain_data '

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-samsung-soc@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-8-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 84a3fce5e9 pinctrl: samsung: pinctrl-samsung: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document either of the demoted functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/samsung/pinctrl-samsung.c:1149: warning: Function parameter or member 'dev' not described in 'samsung_pinctrl_suspend'
 drivers/pinctrl/samsung/pinctrl-samsung.c:1199: warning: Function parameter or member 'dev' not described in 'samsung_pinctrl_resume'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-7-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 0b33c72a19 pinctrl: qcom: pinctrl-msm: Complete 'struct msm_pinctrl' documentation
Add missing descriptions for attributes and fix 1 formatting issue.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/qcom/pinctrl-msm.c:75: warning: Function parameter or member 'desc' not described in 'msm_pinctrl'
 drivers/pinctrl/qcom/pinctrl-msm.c:75: warning: Function parameter or member 'irq_chip' not described in 'msm_pinctrl'
 drivers/pinctrl/qcom/pinctrl-msm.c:75: warning: Function parameter or member 'intr_target_use_scm' not described in 'msm_pinctrl'
 drivers/pinctrl/qcom/pinctrl-msm.c:75: warning: Function parameter or member 'soc' not described in 'msm_pinctrl'
 drivers/pinctrl/qcom/pinctrl-msm.c:75: warning: Function parameter or member 'phys_base' not described in 'msm_pinctrl'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Link: https://lore.kernel.org/r/20200713144930.1034632-6-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 2dd2dbc527 pinctrl: bcm: pinctrl-iproc-gpio: Rename incorrectly documented function param
Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/bcm/pinctrl-iproc-gpio.c:141: warning: Function parameter or member 'chip' not described in 'iproc_set_bit'
 drivers/pinctrl/bcm/pinctrl-iproc-gpio.c:141: warning: Excess function parameter 'iproc_gpio' description in 'iproc_set_bit'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Link: https://lore.kernel.org/r/20200713144930.1034632-5-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 1294754e1c pinctrl: bcm: pinctrl-bcm281xx: Demote obvious misuse of kerneldoc to standard comment blocks
There has been little to no attempt to document any of the demoted
structures here.  These are obviously not kerneldoc headers.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/bcm/pinctrl-bcm281xx.c:65: warning: cannot understand function prototype: 'enum bcm281xx_pin_type '
 drivers/pinctrl/bcm/pinctrl-bcm281xx.c:79: warning: cannot understand function prototype: 'struct bcm281xx_pin_function '
 drivers/pinctrl/bcm/pinctrl-bcm281xx.c:89: warning: cannot understand function prototype: 'struct bcm281xx_pinctrl_data '

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-4-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones bef63e6615 pinctrl: sirf: pinctrl-atlas7: Fix a bunch of documentation misdemeanours
>From ill formatted kerneldoc, to incomplete *and* incorrect struct headers,
through to formatting issues and missing attribute descriptions.

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/sirf/pinctrl-atlas7.c:197: warning: Function parameter or member 'id' not described in 'atlas7_pad_config'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:221: warning: Function parameter or member 'func' not described in 'atlas7_pad_status'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:221: warning: Function parameter or member 'pull' not described in 'atlas7_pad_status'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:221: warning: Function parameter or member 'dstr' not described in 'atlas7_pad_status'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:221: warning: Function parameter or member 'reserved' not described in 'atlas7_pad_status'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:359: warning: Cannot understand  * @dev: a pointer back to containing device
 on line 359 - I thought it was a doc line
 drivers/pinctrl/sirf/pinctrl-atlas7.c:4794: warning: Function parameter or member 'pad_type' not described in 'atlas7_pull_info'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:4917: warning: Function parameter or member 'reserved' not described in 'atlas7_ds_info'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:5617: warning: Function parameter or member 'a7gc' not described in 'atlas7_gpio_to_bank'
 drivers/pinctrl/sirf/pinctrl-atlas7.c:5617: warning: Function parameter or member 'gpio' not described in 'atlas7_gpio_to_bank'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Cc: Barry Song <baohua@kernel.org>
Link: https://lore.kernel.org/r/20200713144930.1034632-3-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:38 +02:00
Lee Jones 80fa3300b7 pinctrl: actions: pinctrl-owl: Supply missing 'struct owl_pinctrl' attribute descriptions
Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'clk' not described in 'owl_pinctrl'
 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'irq_chip' not described in 'owl_pinctrl'
 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'num_irq' not described in 'owl_pinctrl'
 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'irq' not described in 'owl_pinctrl'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: "Andreas Färber" <afaerber@suse.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: David Liu <liuwei@actions-semi.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-2-lee.jones@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:12:37 +02:00
Andy Shevchenko 761b5c30c2 gpio: mmio: replace open-coded for_each_set_bit()
Use for_each_set_bit() instead of open-coding it to simplify the code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200713154429.23662-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:07:18 +02:00
Maor Gottlieb 87c4c774cb RDMA/cm: Protect access to remote_sidr_table
cm.lock must be held while accessing remote_sidr_table. This fixes the
below NULL pointer dereference.

  BUG: kernel NULL pointer dereference, address: 0000000000000000
  #PF: supervisor write access in kernel mode
  #PF: error_code(0x0002) - not-present page
  PGD 0 P4D 0
  Oops: 0002 [#1] SMP PTI
  CPU: 2 PID: 7288 Comm: udaddy Not tainted 5.7.0_for_upstream_perf_2020_06_09_15_14_20_38 #1
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
  RIP: 0010:rb_erase+0x10d/0x360
  Code: 00 00 00 48 89 c1 48 89 d0 48 8b 50 08 48 39 ca 74 48 f6 02 01 75 af 48 8b 7a 10 48 89 c1 48 83 c9 01 48 89 78 08 48 89 42 10 <48> 89 0f 48 8b 08 48 89 0a 48 83 e1 fc 48 89 10 0f 84 b1 00 00 00
  RSP: 0018:ffffc90000f77c30 EFLAGS: 00010086
  RAX: ffff8883df27d458 RBX: ffff8883df27da58 RCX: ffff8883df27d459
  RDX: ffff8883d183fa58 RSI: ffffffffa01e8d00 RDI: 0000000000000000
  RBP: ffff8883d62ac800 R08: 0000000000000000 R09: 00000000000000ce
  R10: 000000000000000a R11: 0000000000000000 R12: ffff8883df27da00
  R13: ffffc90000f77c98 R14: 0000000000000130 R15: 0000000000000000
  FS:  00007f009f877740(0000) GS:ffff8883f1a00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 00000003d467e003 CR4: 0000000000160ee0
  Call Trace:
   cm_send_sidr_rep_locked+0x15a/0x1a0 [ib_cm]
   ib_send_cm_sidr_rep+0x2b/0x50 [ib_cm]
   cma_send_sidr_rep+0x8b/0xe0 [rdma_cm]
   __rdma_accept+0x21d/0x2b0 [rdma_cm]
   ? ucma_get_ctx+0x2b/0xe0 [rdma_ucm]
   ? _copy_from_user+0x30/0x60
   ucma_accept+0x13e/0x1e0 [rdma_ucm]
   ucma_write+0xb4/0x130 [rdma_ucm]
   vfs_write+0xad/0x1a0
   ksys_write+0x9d/0xb0
   do_syscall_64+0x48/0x130
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x7f009ef60924
  Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 80 00 00 00 00 8b 05 2a ef 2c 00 48 63 ff 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 55 53 48 89 d5 48 89 f3 48 83
  RSP: 002b:00007fff843edf38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
  RAX: ffffffffffffffda RBX: 000055743042e1d0 RCX: 00007f009ef60924
  RDX: 0000000000000130 RSI: 00007fff843edf40 RDI: 0000000000000003
  RBP: 00007fff843ee0e0 R08: 0000000000000000 R09: 0000557430433090
  R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
  R13: 00007fff843edf40 R14: 000000000000038c R15: 00000000ffffff00
  CR2: 0000000000000000

Fixes: 6a8824a74b ("RDMA/cm: Allow ib_send_cm_sidr_rep() to be done under lock")
Link: https://lore.kernel.org/r/20200716105519.1424266-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-16 09:58:53 -03:00
Leon Romanovsky 0d1fd39bb2 RDMA/core: Fix race in rdma_alloc_commit_uobject()
The FD should not be installed until all of the setup is completed as the
fd_install() transfers ownership of the kref to the FD table. A thread can
race a close() and trigger concurrent rdma_alloc_commit_uobject() and
uverbs_uobject_fd_release() which, at least, triggers a safety WARN_ON:

  WARNING: CPU: 4 PID: 6913 at drivers/infiniband/core/rdma_core.c:768 uverbs_uobject_fd_release+0x202/0x230
  Kernel panic - not syncing: panic_on_warn set ...
  CPU: 4 PID: 6913 Comm: syz-executor.3 Not tainted 5.7.0-rc2 #22
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
  [..]
  RIP: 0010:uverbs_uobject_fd_release+0x202/0x230
  Code: fe 4c 89 e7 e8 af 23 fe ff e9 2a ff ff ff e8 c5 fa 61 fe be 03 00 00 00 4c 89 e7 e8 68 eb f5 fe e9 13 ff ff ff e8 ae fa 61 fe <0f> 0b eb ac e8 e5 aa 3c fe e8 50 2b 86 fe e9 6a fe ff ff e8 46 2b
  RSP: 0018:ffffc90008117d88 EFLAGS: 00010293
  RAX: ffff88810e146580 RBX: 1ffff92001022fb1 RCX: ffffffff82d5b902
  RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88811951b040
  RBP: ffff88811951b000 R08: ffffed10232a3609 R09: ffffed10232a3609
  R10: ffff88811951b043 R11: 0000000000000001 R12: ffff888100a7c600
  R13: ffff888100a7c650 R14: ffffc90008117da8 R15: ffffffff82d5b700
   ? __uverbs_cleanup_ufile+0x270/0x270
   ? uverbs_uobject_fd_release+0x202/0x230
   ? uverbs_uobject_fd_release+0x202/0x230
   ? __uverbs_cleanup_ufile+0x270/0x270
   ? locks_remove_file+0x282/0x3d0
   ? security_file_free+0xaa/0xd0
   __fput+0x2be/0x770
   task_work_run+0x10e/0x1b0
   exit_to_usermode_loop+0x145/0x170
   do_syscall_64+0x2d0/0x390
   ? prepare_exit_to_usermode+0x17a/0x230
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x414da7
  Code: 00 00 0f 05 48 3d 00 f0 ff ff 77 3f f3 c3 0f 1f 44 00 00 53 89 fb 48 83 ec 10 e8 f4 fb ff ff 89 df 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2b 89 d7 89 44 24 0c e8 36 fc ff ff 8b 44 24
  RSP: 002b:00007fff39d379d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
  RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000414da7
  RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003
  RBP: 00007fff39d37a3c R08: 0000000400000000 R09: 0000000400000000
  R10: 00007fff39d37910 R11: 0000000000000293 R12: 0000000000000001
  R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000003

Reorder so that fd_install() is the last thing done in
rdma_alloc_commit_uobject().

Fixes: aba94548c9 ("IB/uverbs: Move the FD uobj type struct file allocation to alloc_commit")
Link: https://lore.kernel.org/r/20200716102059.1420681-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-16 09:58:53 -03:00
Sumit Gupta d4ff18b86a arm64: tegra: Add compatible string for Tegra194 CPU complex
On Tegra194, data on valid operating points for the CPUs needs to be
queried from BPMP. However, there is no node representing CPU complex.
So, add a compatible string to the 'cpus' node instead of using dummy
node to bind the cpufreq driver to. Also, add reference to the BPMP
instance for the CPU complex.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-07-16 14:57:30 +02:00
Thierry Reding eb93bd8d27 arm64: tegra: Add HDMI supplies on Norrin
The SOR controller needs the AVDD I/O and VDD HDMI PLL supplies in order
to operate correctly. Make sure to specify them for the Norrin board.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-07-16 14:57:29 +02:00
Thierry Reding 4087162fec arm64: tegra: Add #{address,size}-cells for VI I2C on Tegra210
The VI I2C controller provides an I2C bus and therefore needs to define
the #address-cells and #size-cells properties.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-07-16 14:57:29 +02:00
Sowjanya Komatineni 139a390c09 arm64: tegra: Add missing clocks and power-domains to Tegra210 VI I2C
Tegra210 VI I2C is in VE power domain and i2c-vi node should have
power-domains property.

Current Tegra210 i2c-vi device node is missing both VI I2C clocks
and power-domains property.

This patch adds them.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-07-16 14:57:24 +02:00
Xi Wang 79d5208386 RDMA/hns: Fix wrong PBL offset when VA is not aligned to PAGE_SIZE
ROCE uses "VA % buf_page_size" to caclulate the offset in the PBL's first
page, the actual PA corresponding to the MR's VA is equal to MR's PA plus
this offset. The first PA in PBL has already been aligned to PAGE_SIZE
after calling ib_umem_get(), but the MR's VA may not. If the buf_page_size
is smaller than the PAGE_SIZE, this will lead the HW to access the wrong
memory because the offset is smaller than expected.

Fixes: 9b2cf76c9f ("RDMA/hns: Optimize PBL buffer allocation process")
Link: https://lore.kernel.org/r/1594726935-45666-1-git-send-email-liweihang@huawei.com
Signed-off-by: Xi Wang <wangxi11@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-16 09:55:01 -03:00
Weihang Li 7b9bd73ed1 RDMA/hns: Fix wrong assignment of lp_pktn_ini in QPC
The RoCE Engine will schedule to another QP after one has sent
(2 ^ lp_pktn_ini) packets. lp_pktn_ini is set in QPC and should be
calculated from 2 factors:

1. current MTU as a integer
2. the RoCE Engine's maximum slice length 64KB

But the driver use MTU as a enum ib_mtu and the max inline capability, the
lp_pktn_ini will be much bigger than expected which may cause traffic of
some QPs to never get scheduled.

Fixes: b713128de7 ("RDMA/hns: Adjust lp_pktn_ini dynamically")
Link: https://lore.kernel.org/r/1594726138-49294-1-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-16 09:52:14 -03:00
Sungbo Eo 4dc5794cf2 gpio: pca9570: Add DT bindings for NXP PCA9570
This patch adds device tree bindings for the NXP PCA9570,
a 4-bit I2C GPO expander.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200630160934.1197066-1-mans0n@gorani.run
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 14:36:46 +02:00
Sungbo Eo 16d44b6085 gpio: pca9570: add GPO driver for PCA9570
NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
Its ports are controlled only by a data byte without register address.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Datasheet: https://www.nxp.com/docs/en/data-sheet/PCA9570.pdf
Link: https://lore.kernel.org/r/20200709134829.216393-1-mans0n@gorani.run
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 14:35:12 +02:00
Maor Gottlieb c3d6057e07 RDMA/mlx5: Use xa_lock_irq when access to SRQ table
SRQ table is accessed both from interrupt and process context,
therefore we must use xa_lock_irq.

   inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
   kworker/u17:9/8573   takes:
   ffff8883e3503d30 (&xa->xa_lock#13){?...}-{2:2}, at: mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
   {IN-HARDIRQ-W} state was registered at:
     lock_acquire+0xb9/0x3a0
     _raw_spin_lock+0x25/0x30
     srq_event_notifier+0x2b/0xc0 [mlx5_ib]
     notifier_call_chain+0x45/0x70
     __atomic_notifier_call_chain+0x69/0x100
     forward_event+0x36/0xc0 [mlx5_core]
     notifier_call_chain+0x45/0x70
     __atomic_notifier_call_chain+0x69/0x100
     mlx5_eq_async_int+0xc5/0x160 [mlx5_core]
     notifier_call_chain+0x45/0x70
     __atomic_notifier_call_chain+0x69/0x100
     mlx5_irq_int_handler+0x19/0x30 [mlx5_core]
     __handle_irq_event_percpu+0x43/0x2a0
     handle_irq_event_percpu+0x30/0x70
     handle_irq_event+0x34/0x60
     handle_edge_irq+0x7c/0x1b0
     do_IRQ+0x60/0x110
     ret_from_intr+0x0/0x2a
     default_idle+0x34/0x160
     do_idle+0x1ec/0x220
     cpu_startup_entry+0x19/0x20
     start_secondary+0x153/0x1a0
     secondary_startup_64+0xa4/0xb0
   irq event stamp: 20907
   hardirqs last  enabled at (20907):   _raw_spin_unlock_irq+0x24/0x30
   hardirqs last disabled at (20906):   _raw_spin_lock_irq+0xf/0x40
   softirqs last  enabled at (20746):   __do_softirq+0x2c9/0x436
   softirqs last disabled at (20681):   irq_exit+0xb3/0xc0

   other info that might help us debug this:
    Possible unsafe locking scenario:

          CPU0
          ----
     lock(&xa->xa_lock#13);
     <Interrupt>
       lock(&xa->xa_lock#13);

    *** DEADLOCK ***

   2 locks held by kworker/u17:9/8573:
    #0: ffff888295218d38 ((wq_completion)mlx5_ib_page_fault){+.+.}-{0:0}, at: process_one_work+0x1f1/0x5f0
    #1: ffff888401647e78 ((work_completion)(&pfault->work)){+.+.}-{0:0}, at: process_one_work+0x1f1/0x5f0

   stack backtrace:
   CPU: 0 PID: 8573 Comm: kworker/u17:9 Tainted: GO      5.7.0_for_upstream_min_debug_2020_06_14_11_31_46_41 #1
   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
   Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib]
   Call Trace:
    dump_stack+0x71/0x9b
    mark_lock+0x4f2/0x590
    ? print_shortest_lock_dependencies+0x200/0x200
    __lock_acquire+0xa00/0x1eb0
    lock_acquire+0xb9/0x3a0
    ? mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
    _raw_spin_lock+0x25/0x30
    ? mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
    mlx5_cmd_get_srq+0x18/0x70 [mlx5_ib]
    mlx5_ib_eqe_pf_action+0x257/0xa30 [mlx5_ib]
    ? process_one_work+0x209/0x5f0
    process_one_work+0x27b/0x5f0
    ? __schedule+0x280/0x7e0
    worker_thread+0x2d/0x3c0
    ? process_one_work+0x5f0/0x5f0
    kthread+0x111/0x130
    ? kthread_park+0x90/0x90
    ret_from_fork+0x24/0x30

Fixes: e126ba97db ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200712102641.15210-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-16 09:28:16 -03:00
Alexander A. Klimov 78d15eea08 platform/x86: acerhdf: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-16 15:27:55 +03:00
Dmitry Osipenko 3a3cb021b0 ARM: tegra_defconfig: Enable options useful for Nexus 7 and Acer A500
Enable several very useful options and drivers for hardware that is found
on Nexus 7 and Acer A500 tablet devices. Please note that some drivers may
require firmware files extracted from original Android image.

Link: https://github.com/grate-driver/linux-firmware
Link: https://github.com/grate-driver/alsa-ucm-conf
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-07-16 14:22:41 +02:00