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2020-09-09devlink: Introduce external controller flagParav Pandit
A devlink eswitch port may represent PCI PF/VF ports of a controller. A controller either located on same system or it can be an external controller located in host where such NIC is plugged in. Add the ability for driver to specify if a port is for external controller. Use such flag in the mlx5_core driver. An example of an external controller having VF1 of PF0 belong to controller 1. $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev ens2f0pf0vf1 flavour pcivf pfnum 0 vfnum 1 external true splittable false function: hw_addr 00:00:00:00:00:00 $ devlink port show pci/0000:06:00.0/2 -jp { "port": { "pci/0000:06:00.0/2": { "type": "eth", "netdev": "ens2f0pf0vf1", "flavour": "pcivf", "pfnum": 0, "vfnum": 1, "external": true, "splittable": false, "function": { "hw_addr": "00:00:00:00:00:00" } } } } Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09devlink: Move structure comments outside of structureParav Pandit
To add more fields to the PCI PF and VF port attributes, follow standard structure comment format. Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09devlink: Add comment block for missing port attributesParav Pandit
Add comment block for physical, PF and VF port attributes. Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09RDMA/umem: Add rdma_umem_for_each_dma_block()Jason Gunthorpe
This helper does the same as rdma_for_each_block(), except it works on a umem. This simplifies most of the call sites. Link: https://lore.kernel.org/r/4-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Acked-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA/umem: Use simpler logic for ib_umem_find_best_pgsz()Jason Gunthorpe
The calculation in rdma_find_pg_bit() is fairly complicated, and the function is never called anywhere else. Inline a simpler version into ib_umem_find_best_pgsz() Link: https://lore.kernel.org/r/3-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Rewrite inner header IPv6 in ICMPv6 messages in ip6t_NPT, from Michael Zhou. 2) do_ip_vs_set_ctl() dereferences uninitialized value, from Peilin Ye. 3) Support for userdata in tables, from Jose M. Guisado. 4) Do not increment ct error and invalid stats at the same time, from Florian Westphal. 5) Remove ct ignore stats, also from Florian. 6) Add ct stats for clash resolution, from Florian Westphal. 7) Bump reference counter bump on ct clash resolution only, this is safe because bucket lock is held, again from Florian. 8) Use ip_is_fragment() in xt_HMARK, from YueHaibing. 9) Add wildcard support for nft_socket, from Balazs Scheidler. 10) Remove superfluous IPVS dependency on iptables, from Yaroslav Bolyukin. 11) Remove unused definition in ebt_stp, from Wang Hai. 12) Replace CONFIG_NFT_CHAIN_NAT_{IPV4,IPV6} by CONFIG_NFT_NAT in selftests/net, from Fabian Frederick. 13) Add userdata support for nft_object, from Jose M. Guisado. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09net: add __must_check to skb_put_padto()Eric Dumazet
skb_put_padto() and __skb_put_padto() callers must check return values or risk use-after-free. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-09RDMA: Make counters destroy symmetricalLeon Romanovsky
Change counters to return failure like any other verbs destroy, however this flow shouldn't return error at all. Link: https://lore.kernel.org/r/20200907120921.476363-10-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to return error for destroy WQLeon Romanovsky
Make this interface symmetrical to other destroy paths. Fixes: a49b1dc7ae44 ("RDMA: Convert destroy_wq to be void") Link: https://lore.kernel.org/r/20200907120921.476363-9-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Change XRCD destroy return valueLeon Romanovsky
Update XRCD destroy flow to allow command failure. Fixes: 28ad5f65c314 ("RDMA: Move XRCD to be under ib_core responsibility") Link: https://lore.kernel.org/r/20200907120921.476363-8-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Allow fail of destroy CQLeon Romanovsky
Like any other verbs objects, CQ shouldn't fail during destroy, but mlx5_ib didn't follow this contract with mixed IB verbs objects with DEVX. Such mix causes to the situation where FW and kernel are fully interdependent on the reference counting of each side. Kernel verbs and drivers that don't have DEVX flows shouldn't fail. Fixes: e39afe3d6dbd ("RDMA: Convert CQ allocations to be under core responsibility") Link: https://lore.kernel.org/r/20200907120921.476363-7-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA/core: Delete function indirection for alloc/free kernel CQLeon Romanovsky
The ib_alloc_cq*() and ib_free_cq*() are solely kernel verbs to manage CQs and doesn't need extra indirection just to call same functions with constant parameter NULL as udata. Link: https://lore.kernel.org/r/20200907120921.476363-6-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to fail on SRQ destroyLeon Romanovsky
In similar way to other IB objects, restore the ability to return error on SRQ destroy. Strictly speaking, this change is not necessary, and provided here to ensure a symmetrical interface like other destroy functions. Fixes: 68e326dea1db ("RDMA: Handle SRQ allocations by IB/core") Link: https://lore.kernel.org/r/20200907120921.476363-5-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to fail on AH destroyLeon Romanovsky
Like any other IB verbs objects, AH are refcounted by ib_core. The release of those objects are controlled by ib_core with promise that AH destroy can't fail. Being SW object for now, this change makes dealloc_ah() to behave like any other destroy IB flows. Fixes: d345691471b4 ("RDMA: Handle AH allocations by IB/core") Link: https://lore.kernel.org/r/20200907120921.476363-3-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to fail on PD deallocateLeon Romanovsky
The IB verbs objects are counted by the kernel and ib_core ensures that deallocate PD will success so it will be called once all other objects that depends on PD will be released. This is achieved by managing various reference counters on such objects. The mlx5 driver didn't follow this standard flow when allowed DEVX objects that are not managed by ib_core to be interleaved with the ones under ib_core responsibility. In such interleaved scenarios deallocate command can fail and ib_core will leave uobject in internal DB and attempt to clean it later to free resources anyway. This change partially restores returned value from dealloc_pd() for all drivers, but keeping in mind that non-DEVX devices and kernel verbs paths shouldn't fail. Fixes: 21a428a019c9 ("RDMA: Handle PD allocations by IB/core") Link: https://lore.kernel.org/r/20200907120921.476363-2-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09ALSA: pcm: Remove unused inline function snd_mask_sizeofYueHaibing
There is no caller in tree, so can remove it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20200909135744.33464-1-yuehaibing@huawei.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-09-09ALSA: timer: Replace tasklet with workTakashi Iwai
The tasklet is an old API that should be deprecated, usually can be converted to another decent API. In ALSA core timer API, the callbacks can be offlined to a tasklet when a flag is set in the timer backend. It can be achieved gracefully with a work queued in the high-prio system workqueue. This patch replaces the usage of tasklet in ALSA timer API with a simple work. Currently the tasklet feature is used only in the system timer and hrtimer backends, so both are patched to use the new flag name SNDRV_TIMER_HW_WORK, too. Link: https://lore.kernel.org/r/20200903104131.21097-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-09-09RDMA/core: Change how failing destroy is handled during uobj abortJason Gunthorpe
Currently it triggers a WARN_ON and then goes ahead and destroys the uobject anyhow, leaking any driver memory. The only place that leaks driver memory should be during FD close() in uverbs_destroy_ufile_hw(). Drivers are only allowed to fail destroy uobjects if they guarantee destroy will eventually succeed. uverbs_destroy_ufile_hw() provides the loop to give the driver that chance. Link: https://lore.kernel.org/r/20200902081708.746631-1-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09Merge series "opp: Unconditionally call dev_pm_opp_of_remove_table()" from ↵Mark Brown
Viresh Kumar <viresh.kumar@linaro.org>: Hello, This cleans up some of the user code around calls to dev_pm_opp_of_remove_table(). All the patches can be picked by respective maintainers directly except for the last patch, which needs the previous two to get merged first. These are based for 5.9-rc1. Rajendra, Since most of these changes are related to qcom stuff, it would be great if you can give them a try. I wasn't able to test them due to lack of hardware. Ulf, I had to revise the sdhci patch, sorry about that. Please pick this one. Diff between V1 and V2 is mentioned in each of the patches separately. Viresh Kumar (8): cpufreq: imx6q: Unconditionally call dev_pm_opp_of_remove_table() drm/lima: Unconditionally call dev_pm_opp_of_remove_table() drm/msm: Unconditionally call dev_pm_opp_of_remove_table() mmc: sdhci-msm: Unconditionally call dev_pm_opp_of_remove_table() spi: spi-geni-qcom: Unconditionally call dev_pm_opp_of_remove_table() spi: spi-qcom-qspi: Unconditionally call dev_pm_opp_of_remove_table() tty: serial: qcom_geni_serial: Unconditionally call dev_pm_opp_of_remove_table() qcom-geni-se: remove has_opp_table drivers/cpufreq/imx6q-cpufreq.c | 10 ++-------- drivers/gpu/drm/lima/lima_devfreq.c | 6 +----- drivers/gpu/drm/lima/lima_devfreq.h | 1 - drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 14 +++++--------- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 - drivers/gpu/drm/msm/dsi/dsi_host.c | 8 ++------ drivers/mmc/host/sdhci-msm.c | 14 +++++--------- drivers/spi/spi-geni-qcom.c | 13 +++++-------- drivers/spi/spi-qcom-qspi.c | 15 ++++++--------- drivers/tty/serial/qcom_geni_serial.c | 13 +++++-------- include/linux/qcom-geni-se.h | 2 -- 11 files changed, 31 insertions(+), 66 deletions(-) base-commit: f4d51dffc6c01a9e94650d95ce0104964f8ae822 -- 2.25.0.rc1.19.g042ed3e048af
2020-09-09gpio: tc35894: Disable Direct KBD interrupts to enable gpio irqdillon min
On tc35894, have to disable direct keypad interrupts to make it as general purpose interrupts functionality work. if not, after chip reset, IRQST(0x91) will always 0x20, IRQN always low level, can't be clear. Configure DIRECTx to enable general purpose gpio mode, else read GPIOMISx register always zero in irq routine. verified on tc35894, need more test on other tc3589x. Signed-off-by: dillon min <dillon.minfei@gmail.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-09-09i2c: smbus: add core function handling SMBus host-notifyAlain Volmat
SMBus Host-Notify protocol, from the adapter point of view consist of receiving a message from a client, including the client address and some other data. It can be simply handled by creating a new slave device and registering a callback performing the parsing of the message received from the client. This commit introduces two new core functions * i2c_new_slave_host_notify_device * i2c_free_slave_host_notify_device that take care of registration of the new slave device and callback and will call i2c_handle_smbus_host_notify once a Host-Notify event is received. Signed-off-by: Alain Volmat <alain.volmat@st.com> Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-09i2c: algo: pca: Reapply i2c bus settings after resetEvan Nimmo
If something goes wrong (such as the SCL being stuck low) then we need to reset the PCA chip. The issue with this is that on reset we lose all config settings and the chip ends up in a disabled state which results in a lock up/high CPU usage. We need to re-apply any configuration that had previously been set and re-enable the chip. Signed-off-by: Evan Nimmo <evan.nimmo@alliedtelesis.co.nz> Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-09Revert "driver core: Annotate dev_err_probe() with __must_check"Greg Kroah-Hartman
This reverts commit e1f82a0dcf388d98bcc7ad195c03bd812405e6b2 as it's already starting to cause build warnings in linux-next for things that are "obviously correct". It's up to driver authors do "do the right thing" here with this function, and if they don't want to call it as the last line of a function, that's up to them, otherwise code that looks like: ret = dev_err_probe(..., ret, ...); does look really "odd". Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: Krzysztof Kozlowski <krzk@kernel.org> Fixes: e1f82a0dcf38 ("driver core: Annotate dev_err_probe() with __must_check") Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-09Revert "test_firmware: Test platform fw loading on non-EFI systems"Greg Kroah-Hartman
This reverts commit 18efb2f9e897ac65e7a1b2892f4a53e404534eba as it is reported to break the build: https://lore.kernel.org/r/20200909154709.619fe9bb@canb.auug.org.au Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 18efb2f9e897 ("test_firmware: Test platform fw loading on non-EFI systems") Cc: stable@vger.kernel.org Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Scott Branden <scott.branden@broadcom.com> Cc: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200909154709.619fe9bb@canb.auug.org.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-09drm: allow limiting the scatter list size.Gerd Hoffmann
Add drm_device argument to drm_prime_pages_to_sg(), so we can call dma_max_mapping_size() to figure the segment size limit and call into __sg_alloc_table_from_pages() with the correct limit. This fixes virtio-gpu with sev. Possibly it'll fix other bugs too given that drm seems to totaly ignore segment size limits so far ... v2: place max_segment in drm driver not gem object. v3: move max_segment next to the other gem fields. v4: just use dma_max_mapping_size(). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20200907112425.15610-2-kraxel@redhat.com
2020-09-09Merge tag 'topic/nouveau-i915-dp-helpers-and-cleanup-2020-08-31-1' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next UAPI Changes: None Cross-subsystem Changes: * Moves a bunch of miscellaneous DP code from the i915 driver into a set of shared DRM DP helpers Core Changes: * New DRM DP helpers (see above) Driver Changes: * Implements usage of the aforementioned DP helpers in the nouveau driver, along with some other various HPD related cleanup for nouveau Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/11e59ebdea7ee4f46803a21fe9b21443d2b9c401.camel@redhat.com
2020-09-08uaccess: add infrastructure for kernel builds with set_fs()Christoph Hellwig
Add a CONFIG_SET_FS option that is selected by architecturess that implement set_fs, which is all of them initially. If the option is not set stubs for routines related to overriding the address space are provided so that architectures can start to opt out of providing set_fs. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-09-08fs: don't allow splice read/write without explicit opsChristoph Hellwig
default_file_splice_write is the last piece of generic code that uses set_fs to make the uaccess routines operate on kernel pointers. It implements a "fallback loop" for splicing from files that do not actually provide a proper splice_read method. The usual file systems and other high bandwidth instances all provide a ->splice_read, so this just removes support for various device drivers and procfs/debugfs files. If splice support for any of those turns out to be important it can be added back by switching them to the iter ops and using generic_file_splice_read. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-09-08sysctl: Convert to iter interfacesMatthew Wilcox (Oracle)
Using the read_iter/write_iter interfaces allows for in-kernel users to set sysctls without using set_fs(). Also, the buffer is a string, so give it the real type of 'char *', not void *. [AV: Christoph's fixup folded in] Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-09-08Input: allocate keycode for Fn + right shiftHans de Goede
The last 2 generations of Lenovo Thinkpads send an acpi_thinkpad event when Fn + right shift is pressed. This is intended for use with "Lenovo Quick Clean" software, which disables the touchpad + kbd for 2 minutes on this key-combo so that healthcare workes can disinfect it. But there is no silkscreen print on the right-keyboard to indicate this, so add a KEY_FN_RIGHT_SHIFT keycode define to use for this key-combo. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200908135147.4044-3-hdegoede@redhat.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-08Input: allocate keycodes for notification-center, pickup-phone and hangup-phoneHans de Goede
New Lenovo Thinkpad models, e.g. the X1 Carbon 8th gen and the new T14 gen1 models have 3 new symbols / shortcuts on their F9-F11 keys (and the thinkpad_acpi driver receives 3 new "scancodes" for these): F9: Has a symbol resembling a rectangular speech balloon, the manual says the hotkey functions shows or hides the notification center F10: Has a symbol of a telephone horn which has been picked up from the receiver, the manual says: "Answer incoming calls" F11: Has a symbol of a telephone horn which is resting on the receiver, the manual says: "Decline incoming calls" We have no existing keycodes which are a good match for these, so add 3 new keycodes for these. I noticed that we have a hole in our keycodes between 0x1ba and 0x1c0 which does not seem to be reserved for any specific purpose, so these new 3 codes use 0x1bc - 0x1be, instead of starting at 0x27b. Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-09-09drm/ttm: drop the tt backend function paths.Dave Airlie
These are now driver side. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-14-airlied@gmail.com
2020-09-09drm/ttm/agp: remove bdev from agp helpersDave Airlie
Since the agp bind/unbind/destroy are now getting called from drivers rather than via the func table, drop the bdev parameter. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-13-airlied@gmail.com
2020-09-09drm/ttm: get rid of agp specific populate/unpopulate paths.Dave Airlie
Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-12-airlied@gmail.com
2020-09-09drm/ttm/agp: export bind/unbind/destroy for drivers to use.Dave Airlie
Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-5-airlied@gmail.com
2020-09-09drm/ttm: add optional bind/unbind via driver.Dave Airlie
I want to remove the backend funcs Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-3-airlied@gmail.com
2020-09-09drm/ttm: introduce ttm_bo_move_nullDave Airlie
This pattern is cut-n-pasted across 4 drivers, switch it to a WARN_ON instead, as BUG_ON is considered a bad idea usually. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-2-airlied@gmail.com
2020-09-08rxrpc: Rewrite the client connection managerDavid Howells
Rewrite the rxrpc client connection manager so that it can support multiple connections for a given security key to a peer. The following changes are made: (1) For each open socket, the code currently maintains an rbtree with the connections placed into it, keyed by communications parameters. This is tricky to maintain as connections can be culled from the tree or replaced within it. Connections can require replacement for a number of reasons, e.g. their IDs span too great a range for the IDR data type to represent efficiently, the call ID numbers on that conn would overflow or the conn got aborted. This is changed so that there's now a connection bundle object placed in the tree, keyed on the same parameters. The bundle, however, does not need to be replaced. (2) An rxrpc_bundle object can now manage the available channels for a set of parallel connections. The lock that manages this is moved there from the rxrpc_connection struct (channel_lock). (3) There'a a dummy bundle for all incoming connections to share so that they have a channel_lock too. It might be better to give each incoming connection its own bundle. This bundle is not needed to manage which channels incoming calls are made on because that's the solely at whim of the client. (4) The restrictions on how many client connections are around are removed. Instead, a previous patch limits the number of client calls that can be allocated. Ordinarily, client connections are reaped after 2 minutes on the idle queue, but when more than a certain number of connections are in existence, the reaper starts reaping them after 2s of idleness instead to get the numbers back down. It could also be made such that new call allocations are forced to wait until the number of outstanding connections subsides. Signed-off-by: David Howells <dhowells@redhat.com>
2020-09-08firmware: arm_scmi: Add system power protocol supportCristian Marussi
Add bare protocol support for SCMI system power protocol as needed by an OSPM agent: basic initialization and SYSTEM_POWER_STATE_NOTIFIER core notification support. No event-handling logic is attached to such notification.. Link: https://lore.kernel.org/r/20200907174657.32466-2-cristian.marussi@arm.com Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2020-09-08netfilter: nf_tables: add userdata support for nft_objectJose M. Guisado Gomez
Enables storing userdata for nft_object. Initially this will store an optional comment but can be extended in the future as needed. Adds new attribute NFTA_OBJ_USERDATA to nft_object. Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-09-08dt-bindings: interconnect: Add EPSS L3 DT binding on SM8250Sibi Sankar
Add Epoch Subsystem (EPSS) L3 interconnect provider binding on SM8250 SoCs. Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200801123049.32398-5-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: Introduce xlate_extended() callbackGeorgi Djakov
Currently there is the xlate() callback, which is used by providers for mapping the nodes from phandle arguments. That's fine for simple mappings, but the phandle arguments could contain an additional data, such as tag information. Let's create another callback xlate_extended() for the cases where providers want also populate the path tag data. Tested-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20200903133134.17201-2-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add generic qcom bindingsMike Tipton
Add generic qcom interconnect bindings that are common across platforms. In particular, these include QCOM_ICC_TAG_* macros that clients can use when calling icc_set_tag(). Signed-off-by: Mike Tipton <mdtipton@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200903192149.30385-3-mdtipton@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add Qualcomm SM8250 DT bindingsJonathan Marek
The Qualcomm SM8250 platform has several bus fabrics that could be controlled and tuned dynamically according to the bandwidth demand. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200728023811.5607-4-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08dt-bindings: interconnect: Add Qualcomm SM8150 DT bindingsJonathan Marek
The Qualcomm SM8150 platform has several bus fabrics that could be controlled and tuned dynamically according to the bandwidth demand. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200728023811.5607-3-jonathan@marek.ca Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08interconnect: Add bulk API helpersGeorgi Djakov
There are drivers which just need to get multiple interconnect paths, request some predefined amounts of bandwidth and then just toggle the paths between enabled/disabled state. The aim of this patch is simplify the above and to allow drivers to put all the path names and bandwidth data into a single static icc_bulk_data table and call the icc_bulk_* functions on that table in order to scale all the interconnect paths in parallel. Suggested-by: Evan Green <evgreen@chromium.org> Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200729123439.9961-1-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-09-08ASoC: SOF: Implement snd_sof_bytes_ext_volatile_get kcontrol IODharageswari R
This patch implements the snd_sof_bytes_ext_volatile_get() to read the actual parameters from DSP by sending the SOF_IPC_COMP_GET_DATA IPC for the kcontrol of type SOF_TPLG_KCTL_BYTES_VOLATILE_RO. Signed-off-by: Dharageswari R <dharageswari.r@intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20200908092825.1813847-2-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-08tracepoint: Fix overly long tracepoint namespeterz@infradead.org
Stephen Rothwell reported: > Exported symbols need to be <= (64 - sizeof(Elf_Addr)) long. This is > presumably 56 on 64 bit arches and the above symbol (including the '.') > is 56 characters long. Shorten the tracepoint symbol name. Fixes: d25e37d89dd2 ("tracepoint: Optimize using static_call()") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20200908105743.GW2674@hirez.programming.kicks-ass.net
2020-09-08fbdev: remove mbx framebuffer driverMike Rapoport
The only in-tree user for mbx driver for Intel 2700G graphics chip was cm-x270 platform. Since this platform was removed by the commit 9d3239147d6d ("ARM: pxa: remove Compulab pxa2xx boards") there is no point to keep the obsolete framebuffer driver. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200830115524.431278-1-rppt@kernel.org
2020-09-08lib/fonts: add font 6x8 for OLED displaySven Schneider
This font is derived from lib/fonts/font_6x10.c and is useful for small OLED displays Signed-off-by: Sven Schneider <s.schneider@arkona-technologies.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200820082137.5907-1-s.hauer@pengutronix.de