summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2020-05-30Merge branch 'mptcp-a-bunch-of-fixes'David S. Miller
Paolo Abeni says: ==================== mptcp: a bunch of fixes This patch series pulls together a few bugfixes for MPTCP bug observed while doing stress-test with apache bench - forced to use MPTCP and multiple subflows. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30mptcp: remove msk from the token container at destruction time.Paolo Abeni
Currently we remote the msk from the token container only via mptcp_close(). The MPTCP master socket can be destroyed also via other paths (e.g. if not yet accepted, when shutting down the listener socket). When we hit the latter scenario, dangling msk references are left into the token container, leading to memory corruption and/or UaF. This change addresses the issue by moving the token removal into the msk destructor. Fixes: 79c0949e9a09 ("mptcp: Add key generation and token tree") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30mptcp: fix race between MP_JOIN and closePaolo Abeni
If a MP_JOIN subflow completes the 3whs while another CPU is closing the master msk, we can hit the following race: CPU1 CPU2 close() mptcp_close subflow_syn_recv_sock mptcp_token_get_sock mptcp_finish_join inet_sk_state_load mptcp_token_destroy inet_sk_state_store(TCP_CLOSE) __mptcp_flush_join_list() mptcp_sock_graft list_add_tail sk_common_release sock_orphan() <socket free> The MP_JOIN socket will be leaked. Additionally we can hit UaF for the msk 'struct socket' referenced via the 'conn' field. This change try to address the issue introducing some synchronization between the MP_JOIN 3whs and mptcp_close via the join_list spinlock. If we detect the msk is closing the MP_JOIN socket is closed, too. Fixes: f296234c98a8 ("mptcp: Add handling of incoming MP_JOIN requests") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30mptcp: fix unblocking connect()Paolo Abeni
Currently unblocking connect() on MPTCP sockets fails frequently. If mptcp_stream_connect() is invoked to complete a previously attempted unblocking connection, it will still try to create the first subflow via __mptcp_socket_create(). If the 3whs is completed and the 'can_ack' flag is already set, the latter will fail with -EINVAL. This change addresses the issue checking for pending connect and delegating the completion to the first subflow. Additionally do msk addresses and sk_state changes only when needed. Fixes: 2303f994b3e1 ("mptcp: Associate MPTCP context with TCP socket") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30Merge branch 'r8169-again-few-improvements'David S. Miller
Heiner Kallweit says: ==================== r8169: again few improvements Again a series with few r8169 improvements. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30r8169: improve handling power management opsHeiner Kallweit
Simplify handling the power management callbacks. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30r8169: make rtl8169_down central chip quiesce functionHeiner Kallweit
Functionality for quiescing the chip is spread across different functions currently. Move it to rtl8169_down(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30r8169: move some calls to rtl8169_hw_resetHeiner Kallweit
Move calls that are needed before and after calling rtl8169_hw_reset() into this function. This requires to move the function in the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30r8169: don't reset tx ring indexes in rtl8169_tx_clearHeiner Kallweit
In places where the indexes have to be reset, we call rtl8169_init_ring_indexes() anyway after rtl8169_tx_clear(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30r8169: enable WAKE_PHY as only WoL source when runtime-suspendingHeiner Kallweit
We go to runtime-suspend few secs after cable removal. As cable is removed "physical link up" is the only meaningful WoL source. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30r8169: change driver data typeHeiner Kallweit
Change driver private data type to struct rtl8169_private * to avoid some overhead. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-31mtd: spi-nor: sfdp: add/use local variable in spi_nor_parse_bfpt()Sergei Shtylyov
Despite of how spi_nor_parse_bfpt() abuses the structure fields during their calculation, gcc manages to make some decent code out of that. :-) Yet adding a local variable to store the BFPT DWORDs during calculations still saves 12 bytes of the object code (AArch64 gcc 4.8.5)... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2020-05-30Merge tag 'wireless-drivers-next-2020-05-30' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.8 Third set of patches for v5.8. Final new features before the merge window (most likely) opens, noteworthy here is adding WPA3 support to old drivers rt2800, b43 and b43_legacy. Major changes: ath10k * SDIO and SNOC busses are not experimental anymore ath9k * allow receive of broadcast Action frames ath9k_htc * allow receive of broadcast Action frames rt2800 * enable WPA3 support out of box b43 * enable WPA3 support b43_legacy * enable WPA3 support mwifiex * advertise max number of clients to user space mt76 * mt7663: add remain-on-channel support * mt7915: add spatial reuse support * add support for mt7611n hardware iwlwifi * add ACPI DSM support * support enabling 5.2GHz bands in Indonesia via ACPI * bump FW API version to 56 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net/smc: pre-fetch send buffer outside of send_lockKarsten Graul
Pre-fetch send buffer for the CDC validation message before entering the send_lock. Without that the send call might fail with -EBUSY because there are no free buffers and waiting for buffers is not possible under send_lock. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30Merge branch 'Fix-2-non-critical-issues-in-SJA1105-DSA'David S. Miller
Vladimir Oltean says: ==================== Fix 2 non-critical issues in SJA1105 DSA This small series suppresses the W=1 warnings in the sja1105 driver and it corrects some register offsets. I would like to target it against net-next since it would have non-trivial conflicts with net, and the problems it solves are not that big of a deal. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: dsa: sja1105: fix port mirroring for P/Q/R/SVladimir Oltean
The dynamic configuration interface for the General Params and the L2 Lookup Params tables was copy-pasted between E/T devices and P/Q/R/S devices. Nonetheless, these interfaces are bitwise different. The driver is using dynamic reconfiguration of the General Parameters table for the port mirroring feature, which was therefore broken on P/Q/R/S. Note that this patch can't be backported easily very far to stable trees (since it conflicts with some other development done since the introduction of the driver). So the Fixes: tag is purely informational. Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: dsa: sja1105: suppress -Wmissing-prototypes in sja1105_static_config.cVladimir Oltean
Newer compilers complain with W=1 builds that there are non-static functions defined in sja1105_static_config.c that don't have a prototype, because their prototype is defined in sja1105.h which this translation unit does not include. I don't entirely understand what is the point of these warnings, since in principle there's nothing wrong with that. But let's move the prototypes to a header file that _is_ included by sja1105_static_config.c, since that will make these warnings go away. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net/sched: act_ct: add nat mangle action only for NAT-conntrackwenxu
Currently add nat mangle action with comparing invert and orig tuple. It is better to check IPS_NAT_MASK flags first to avoid non necessary memcmp for non-NAT conntrack. Signed-off-by: wenxu <wenxu@ucloud.cn> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30Merge tag 'mlx5-cleanup-2020-05-29' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-cleanup-2020-05-29 Accumulated cleanup patches and sparse warning fixes for mlx5 driver. 1) sync with mlx5-next branch 2) Eli Cohen declares mpls_entry_encode() helper in mpls.h as suggested by Jakub Kicinski and David Ahern, and use it in mlx5 3) Jesper Fixes xdp data_meta setup in mlx5 4) Many sparse and build warnings cleanup ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30devinet: fix memleak in inetdev_init()Yang Yingliang
When devinet_sysctl_register() failed, the memory allocated in neigh_parms_alloc() should be freed. Fixes: 20e61da7ffcf ("ipv4: fail early when creating netdev named all or default") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30virtio_vsock: Fix race condition in virtio_transport_recv_pktJia He
When client on the host tries to connect(SOCK_STREAM, O_NONBLOCK) to the server on the guest, there will be a panic on a ThunderX2 (armv8a server): [ 463.718844] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 463.718848] Mem abort info: [ 463.718849] ESR = 0x96000044 [ 463.718852] EC = 0x25: DABT (current EL), IL = 32 bits [ 463.718853] SET = 0, FnV = 0 [ 463.718854] EA = 0, S1PTW = 0 [ 463.718855] Data abort info: [ 463.718856] ISV = 0, ISS = 0x00000044 [ 463.718857] CM = 0, WnR = 1 [ 463.718859] user pgtable: 4k pages, 48-bit VAs, pgdp=0000008f6f6e9000 [ 463.718861] [0000000000000000] pgd=0000000000000000 [ 463.718866] Internal error: Oops: 96000044 [#1] SMP [...] [ 463.718977] CPU: 213 PID: 5040 Comm: vhost-5032 Tainted: G O 5.7.0-rc7+ #139 [ 463.718980] Hardware name: GIGABYTE R281-T91-00/MT91-FS1-00, BIOS F06 09/25/2018 [ 463.718982] pstate: 60400009 (nZCv daif +PAN -UAO) [ 463.718995] pc : virtio_transport_recv_pkt+0x4c8/0xd40 [vmw_vsock_virtio_transport_common] [ 463.718999] lr : virtio_transport_recv_pkt+0x1fc/0xd40 [vmw_vsock_virtio_transport_common] [ 463.719000] sp : ffff80002dbe3c40 [...] [ 463.719025] Call trace: [ 463.719030] virtio_transport_recv_pkt+0x4c8/0xd40 [vmw_vsock_virtio_transport_common] [ 463.719034] vhost_vsock_handle_tx_kick+0x360/0x408 [vhost_vsock] [ 463.719041] vhost_worker+0x100/0x1a0 [vhost] [ 463.719048] kthread+0x128/0x130 [ 463.719052] ret_from_fork+0x10/0x18 The race condition is as follows: Task1 Task2 ===== ===== __sock_release virtio_transport_recv_pkt __vsock_release vsock_find_bound_socket (found sk) lock_sock_nested vsock_remove_sock sock_orphan sk_set_socket(sk, NULL) sk->sk_shutdown = SHUTDOWN_MASK ... release_sock lock_sock virtio_transport_recv_connecting sk->sk_socket->state (panic!) The root cause is that vsock_find_bound_socket can't hold the lock_sock, so there is a small race window between vsock_find_bound_socket() and lock_sock(). If __vsock_release() is running in another task, sk->sk_socket will be set to NULL inadvertently. This fixes it by checking sk->sk_shutdown(suggested by Stefano) after lock_sock since sk->sk_shutdown is set to SHUTDOWN_MASK under the protection of lock_sock_nested. Signed-off-by: Jia He <justin.he@arm.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30Merge branch 'hns3-next'David S. Miller
Huazhong Tan says: ==================== net: hns3: adds some cleanups for -next There are some cleanups for the HNS3 ethernet driver, fix an incorrect print format, an incorrect comment and some coding style issues, also remove some unused codes and macros. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: hns3: remove some unused codes in hns3_nic_set_features()Huazhong Tan
NETIF_F_HW_VLAN_CTAG_FILTER is not set in netdev->hw_feature for the HNS3 driver, so the handler of NETIF_F_HW_VLAN_CTAG_FILTER in hns3_nic_set_features() won't be called, remove it. Reported-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: hns3: fix two coding style issues in hclgevf_main.cHuazhong Tan
Remove a redundant blank line in hclgevf_cmd_set_promisc_mode(), and fix a reverse xmas tree coding style issue in hclgevf_set_rss_tc_mode(). Reported-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: hns3: fix an incorrect comment for num_tqps in struct hclgevf_devHuazhong Tan
struct hclgevf_dev stands for VF device, its field num_tqps indicates the number of VF's task queue pairs, so the comment is incorrect, replace 'PF' with 'VF'. Reported-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: hns3: remove two unused macros in hclgevf_cmd.cHuazhong Tan
Macro hclgevf_ring_to_dma_dir and hclgevf_is_csq defined in hclgevf_cmd.c, but not used, so remove them. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: hns3: remove an unused macro hclge_is_csqHuazhong Tan
Macro hclge_is_csq defined in hcgle_cmd.c has not been used, so remove it. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30net: hns3: fix a print format issue in hclge_mac_mdio_config()Huazhong Tan
Use %d to print int variable 'ret' in hclge_mac_mdio_config(). Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-30MAINTAINERS: Add entry for Qualcomm IPCC driverManivannan Sadhasivam
Add MAINTAINERS entry for Qualcomm IPCC driver and its binding. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: Add support for Qualcomm IPCCManivannan Sadhasivam
Add support for the Inter-Processor Communication Controller (IPCC) block from Qualcomm that coordinates the interrupts (inbound & outbound) for Multiprocessor (MPROC), COMPUTE-Level0 (COMPUTE-L0) & COMPUTE-Level1 (COMPUTE-L1) protocols for the Application Processor Subsystem (APSS). This driver is modeled as an irqchip+mailbox driver. The irqchip part helps in receiving the interrupts from the IPCC clients such as modems, DSPs, PCI-E etc... and forwards them to respective entities in APSS. On the other hand, the mailbox part is used to send interrupts to the IPCC clients from the entities of APSS. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org> Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [mani: moved to mailbox, added static mbox channels and cleanups] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30dt-bindings: mailbox: Add devicetree binding for Qcom IPCCManivannan Sadhasivam
Add devicetree YAML binding for Qualcomm Inter-Processor Communication Controller (IPCC) block. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: zynqmp-ipi: Fix NULL vs IS_ERR() check in zynqmp_ipi_mbox_probe()Wei Yongjun
In case of error, the function devm_ioremap() returns NULL pointer not ERR_PTR(). So we should check whether the return value of devm_ioremap() is NULL instead of IS_ERR. Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: imx-mailbox: fix scu msg header size checkPeng Fan
The i.MX8 SCU message header size is the number of "u32" elements, not "u8", so fix the check. Reported-by: coverity-bot <keescook+coverity-bot@chromium.org> Addresses-Coverity-ID: 1461658 ("Memory - corruptions") Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: sprd: Add Spreadtrum mailbox driverBaolin Wang
The Spreadtrum mailbox controller supports 8 channels to communicate with MCUs, and it contains 2 different parts: inbox and outbox, which are used to send and receive messages by IRQ mode. Signed-off-by: Baolin Wang <baolin.wang@unisoc.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30dt-bindings: mailbox: Add the Spreadtrum mailbox documentationBaolin Wang
Add the Spreadtrum mailbox documentation. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Baolin Wang <baolin.wang@unisoc.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: ZynqMP IPI: Delete an error message in zynqmp_ipi_probe()Markus Elfring
The function platform_get_irq can log an error already. Thus omit a redundant message for the exception handling in the calling function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: imx: Disable the clock on devm_mbox_controller_register() failureFabio Estevam
devm_mbox_controller_register() may fail, and in the case of failure the priv->clk clock that was previously enabled, should be disabled. Fixes: 2bb7005696e2 ("mailbox: Add support for i.MX messaging unit") Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> [Jassi: fixed merge/am conflict] Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30i2c: add 'single-master' property to generic bindingsWolfram Sang
It is useful to know if we are the only master on a given bus. Because this is a HW description of the bus, add it to the generic bindings. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-05-30mailbox: imx: Fix return in imx_mu_scu_xlate()Dan Carpenter
This called from mbox_request_channel(). The caller is expecting error pointers and not NULL so this "return NULL;" will lead to an Oops. Fixes: 0a67003b1985 ("mailbox: imx: add SCU MU support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: imx: Support runtime PMAnson Huang
Some power hungry sub-systems like VPU has its own MUs which also use mailbox driver, current mailbox driver uses platform driver model and MU's power will be ON after driver probed and left ON there, it may cause the whole sub-system can NOT enter lower power mode, take VPU driver for example, it has runtime PM support, but due to its MU always ON, the VPU sub-system will be always ON and consume many power during kernel idle. To save power in kernel idle, mailbox driver needs to support runtime PM in order to power off MU when it is unused. However, the runtime suspend/resume can ONLY be implemented in mailbox's .shutdown/.startup callback, so its consumer needs to call mbox_request_channel()/mbox_free_channel() in consumer driver's runtime PM callback, then the MU's power will be ON/OFF along with consumer's runtime PM status. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30mailbox: pcc: make pcc_mbox_driver staticJason Yan
Fix the following sparse warning: drivers/mailbox/pcc.c:571:24: warning: symbol 'pcc_mbox_driver' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-05-30i2c: designware: Add Baikal-T1 System I2C supportSerge Semin
Baikal-T1 System Controller is equipped with a dedicated I2C Controller which functionality is based on the DW APB I2C IP-core, the only difference in a way it' registers are accessed. There are three access register provided in the System Controller registers map, which indirectly address the normal DW APB I2C registers space. So in order to have the Baikal-T1 System I2C Controller supported by the common DW APB I2C driver we created a dedicated Dw I2C controller model quirk, which retrieves the syscon regmap from the parental dt node and creates a new regmap based on it. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-05-30i2c: designware: Move reg-space remapping into a dedicated functionSerge Semin
This is a preparation patch before adding a quirk with custom registers map creation required for the Baikal-T1 System I2C support. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-05-30i2c: designware: Retrieve quirk flags as early as possibleSerge Semin
Some platforms might need to activate the driver quirks at a very early probe stage. For instance, Baikal-T1 System I2C doesn't need to map the registers space as ones belong to the system controller. Instead it will request the syscon regmap from the parental DT node. In order to be able to do so let's retrieve the model flags right after the DW I2C private data is created. While at it replace the or-assignment with just assignment operator since or-ing is redundant at this stage. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-05-30i2c: designware: Convert driver to using regmap APISerge Semin
Seeing the DW I2C driver is using flags-based accessors with two conditional clauses it would be better to replace them with the regmap API IO methods and to initialize the regmap object with read/write callbacks specific to the controller registers map implementation. This will be also handy for the drivers with non-standard registers mapping (like an embedded into the Baikal-T1 System Controller DW I2C block, which glue-driver is a part of this series). As before the driver tries to detect the mapping setup at probe stage and creates a regmap object accordingly, which will be used by the rest of the code to correctly access the controller registers. In two places it was appropriate to convert the hand-written read-modify-write and read-poll-loop design patterns to the corresponding regmap API ready-to-use methods. Note the regmap IO methods return value is checked only at the probe stage. The rest of the code won't do this because basically we have MMIO-based regmap so non of the read/write methods can fail (this also won't be needed for the Baikal-T1-specific I2C controller). Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> [wsa: fix type of 'rx_valid' and remove outdated kdoc var description] Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-05-30dt: Add bindings for IDT VersaClock 5P49V5925Adam Ford
IDT VersaClock 5 5P49V6965 has 5 clock outputs, 4 fractional dividers. Signed-off-by: Adam Ford <aford173@gmail.com> Link: https://lkml.kernel.org/r/20200404161537.2312297-2-aford173@gmail.com Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-05-30clk: vc5: Add support for IDT VersaClock 5P49V6965Adam Ford
Update IDT VersaClock 5 driver to support 5P49V6965. Signed-off-by: Adam Ford <aford173@gmail.com> Link: https://lore.kernel.org/r/20200404161537.2312297-1-aford173@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-05-30Merge tag 'powerpc-5.7-6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - a fix for the recent change to how we restore non-volatile GPRs, which broke our emulation of reading from the DSCR (Data Stream Control Register). - a fix for the recent rewrite of interrupt/syscall exit in C, we need to exclude KCOV from that code, otherwise it can lead to unrecoverable faults. Thanks to Daniel Axtens. * tag 'powerpc-5.7-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Disable sanitisers for C syscall/interrupt entry/exit code powerpc/64s: Fix restore of NV GPRs after facility unavailable exception
2020-05-30Merge tag 'gpio-v5.7-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "Here are some (very) late fixes for GPIO, none of them very serious except the one tagged for stable for enabling IRQ on open drain lines: - Fix probing of mvebu chips without PWM - Fix error path on ida_get_simple() on the exar driver - Notify userspace properly about line status changes when flags are changed on lines. - Fix a sleeping while holding spinlock in the mellanox driver. - Fix return value of the PXA and Kona probe calls. - Fix IRQ locking of open drain lines, it is fine to have IRQs on open drain lines flagged for output" * tag 'gpio-v5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: fix locking open drain IRQ lines gpio: bcm-kona: Fix return value of bcm_kona_gpio_probe() gpio: pxa: Fix return value of pxa_gpio_probe() gpio: mlxbf2: Fix sleeping while holding spinlock gpiolib: notify user-space about line status changes after flags are set gpio: exar: Fix bad handling for ida_simple_get error path gpio: mvebu: Fix probing for chips without PWM
2020-05-30mtd: spi-nor: sfdp: prepare BFPT parsing for JESD216 rev DPratyush Yadav
JESD216 rev D makes BFPT 20 DWORDs. Update the BFPT size define to reflect that. The check for rev A or later compared the BFPT header length with the maximum BFPT length, BFPT_DWORD_MAX. Since BFPT_DWORD_MAX was 16, and so was the BFPT length for both rev A and B, this check worked fine. But now, since BFPT_DWORD_MAX is 20, it means this check will also stop BFPT parsing for rev A or B, since their length is 16. So, instead check for BFPT_DWORD_MAX_JESD216 to stop BFPT parsing for the first JESD216 version, and check for BFPT_DWORD_MAX_JESD216B for the next two versions. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
generated by cgit (git 2.34.1) at 2025-09-24 07:52:23 +0000