linux/drivers/char, branch v4.7

ipmi: Remove smi_msg from waiting_rcv_msgs list before handle_one_recv_msg()

2016-06-13T13:56:28Z

Commit 7ea0ed2b5be8 ("ipmi: Make the message handler easier to use for SMI interfaces") changed handle_new_recv_msgs() to call handle_one_recv_msg() for a smi_msg while the smi_msg is still connected to waiting_rcv_msgs list. That could lead to following list corruption problems: 1) low-level function treats smi_msg as not connected to list handle_one_recv_msg() could end up calling smi_send(), which assumes the msg is not connected to list. For example, the following sequence could corrupt list by doing list_add_tail() for the entry still connected to other list. handle_new_recv_msgs() msg = list_entry(waiting_rcv_msgs) handle_one_recv_msg(msg) handle_ipmb_get_msg_cmd(msg) smi_send(msg) spin_lock(xmit_msgs_lock) list_add_tail(msg) spin_unlock(xmit_msgs_lock) 2) race between multiple handle_new_recv_msgs() instances handle_new_recv_msgs() once releases waiting_rcv_msgs_lock before calling handle_one_recv_msg() then retakes the lock and list_del() it. If others call handle_new_recv_msgs() during the window shown below list_del() will be done twice for the same smi_msg. handle_new_recv_msgs() spin_lock(waiting_rcv_msgs_lock) msg = list_entry(waiting_rcv_msgs) spin_unlock(waiting_rcv_msgs_lock) | | handle_one_recv_msg(msg) | spin_lock(waiting_rcv_msgs_lock) list_del(msg) spin_unlock(waiting_rcv_msgs_lock) Fixes: 7ea0ed2b5be8 ("ipmi: Make the message handler easier to use for SMI interfaces") Signed-off-by: Jun'ichi Nomura [Added a comment to describe why this works.] Signed-off-by: Corey Minyard Cc: stable@vger.kernel.org # 3.19 Tested-by: Ye Feng

Merge branch 'akpm' (patches from Andrew)

2016-05-21T05:31:33Z

Merge more updates from Andrew Morton: - the rest of MM - KASAN updates - procfs updates - exit, fork updates - printk updates - lib/ updates - radix-tree testsuite updates - checkpatch updates - kprobes updates - a few other misc bits * emailed patches from Andrew Morton : (162 commits) samples/kprobes: print out the symbol name for the hooks samples/kprobes: add a new module parameter kprobes: add the "tls" argument for j_do_fork init/main.c: simplify initcall_blacklisted() fs/efs/super.c: fix return value checkpatch: improve --git shortcut checkpatch: reduce number of `git log` calls with --git checkpatch: add support to check already applied git commits checkpatch: add --list-types to show message types to show or ignore checkpatch: advertise the --fix and --fix-inplace options more checkpatch: whine about ACCESS_ONCE checkpatch: add test for keywords not starting on tabstops checkpatch: improve CONSTANT_COMPARISON test for structure members checkpatch: add PREFER_IS_ENABLED test lib/GCD.c: use binary GCD algorithm instead of Euclidean radix-tree: free up the bottom bit of exceptional entries for reuse dax: move RADIX_DAX_ definitions to dax.c radix-tree: make radix_tree_descend() more useful radix-tree: introduce radix_tree_replace_clear_tags() radix-tree: tidy up __radix_tree_create() ...

Merge tag 'char-misc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2016-05-21T04:20:31Z

Pull char / misc driver updates from Greg KH: "Here's the big char and misc driver update for 4.7-rc1. Lots of different tiny driver subsystems have updates here with new drivers and functionality. Details in the shortlog. All have been in linux-next with no reported issues for a while" * tag 'char-misc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (125 commits) mcb: Delete num_cells variable which is not required mcb: Fixed bar number assignment for the gdd mcb: Replace ioremap and request_region with the devm version mcb: Implement bus->dev.release callback mcb: export bus information via sysfs mcb: Correctly initialize the bus's device mei: bus: call mei_cl_read_start under device lock coresight: etb10: adjust read pointer only when needed coresight: configuring ETF in FIFO mode when acting as link coresight: tmc: implementing TMC-ETF AUX space API coresight: moving struct cs_buffers to header file coresight: tmc: keep track of memory width coresight: tmc: make sysFS and Perf mode mutually exclusive coresight: tmc: dump system memory content only when needed coresight: tmc: adding mode of operation for link/sinks coresight: tmc: getting rid of multiple read access coresight: tmc: allocating memory when needed coresight: tmc: making prepare/unprepare functions generic coresight: tmc: splitting driver in ETB/ETF and ETR components coresight: tmc: cleaning up header file ...

Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2016-05-21T03:57:27Z

Pull tty and serial driver updates from Greg KH: "Here's the large TTY and Serial driver update for 4.7-rc1. A few new serial drivers are added here, and Peter has fixed a bunch of long-standing bugs in the tty layer and serial drivers as normal. Full details in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (88 commits) MAINTAINERS: 8250: remove website reference serial: core: Fix port mutex assert if lockdep disabled serial: 8250_dw: fix wrong logic in dw8250_check_lcr() tty: vt, finish looping on duplicate tty: vt, return error when con_startup fails QE-UART: add "fsl,t1040-ucc-uart" to of_device_id serial: mctrl_gpio: Drop support for out1-gpios and out2-gpios serial: 8250dw: Add device HID for future AMD UART controller Fix OpenSSH pty regression on close serial: mctrl_gpio: add IRQ locking serial: 8250: Integrate Fintek into 8250_base serial: mps2-uart: add support for early console serial: mps2-uart: add MPS2 UART driver dt-bindings: document the MPS2 UART bindings serial: sirf: Use generic uart-has-rtscts DT property serial: sirf: Introduce helper variable struct device_node *np serial: mxs-auart: Use generic uart-has-rtscts DT property serial: imx: Use generic uart-has-rtscts DT property doc: DT: Add Generic Serial Device Tree Bindings serial: 8250: of: Make tegra_serial_handle_break() static ...

lib/uuid.c: move generate_random_uuid() to uuid.c

2016-05-21T00:58:30Z

Let's gather the UUID related functions under one hood. Signed-off-by: Andy Shevchenko Reviewed-by: Matt Fleming Cc: Dmitry Kasatkin Cc: Mimi Zohar Cc: Rasmus Villemoes Cc: Arnd Bergmann Cc: "Theodore Ts'o" Cc: Al Viro Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2016-05-17T23:26:30Z

Pull networking updates from David Miller: "Highlights: 1) Support SPI based w5100 devices, from Akinobu Mita. 2) Partial Segmentation Offload, from Alexander Duyck. 3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE. 4) Allow cls_flower stats offload, from Amir Vadai. 5) Implement bpf blinding, from Daniel Borkmann. 6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is actually using FASYNC these atomics are superfluous. From Eric Dumazet. 7) Run TCP more preemptibly, also from Eric Dumazet. 8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e driver, from Gal Pressman. 9) Allow creating ppp devices via rtnetlink, from Guillaume Nault. 10) Improve BPF usage documentation, from Jesper Dangaard Brouer. 11) Support tunneling offloads in qed, from Manish Chopra. 12) aRFS offloading in mlx5e, from Maor Gottlieb. 13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo Leitner. 14) Add MSG_EOR support to TCP, this allows controlling packet coalescing on application record boundaries for more accurate socket timestamp sampling. From Martin KaFai Lau. 15) Fix alignment of 64-bit netlink attributes across the board, from Nicolas Dichtel. 16) Per-vlan stats in bridging, from Nikolay Aleksandrov. 17) Several conversions of drivers to ethtool ksettings, from Philippe Reynes. 18) Checksum neutral ILA in ipv6, from Tom Herbert. 19) Factorize all of the various marvell dsa drivers into one, from Vivien Didelot 20) Add VF support to qed driver, from Yuval Mintz" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits) Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m" Revert "phy dp83867: Make rgmii parameters optional" r8169: default to 64-bit DMA on recent PCIe chips phy dp83867: Make rgmii parameters optional phy dp83867: Fix compilation with CONFIG_OF_MDIO=m bpf: arm64: remove callee-save registers use for tmp registers asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions switchdev: pass pointer to fib_info instead of copy net_sched: close another race condition in tcf_mirred_release() tipc: fix nametable publication field in nl compat drivers: net: Don't print unpopulated net_device name qed: add support for dcbx. ravb: Add missing free_irq() calls to ravb_close() qed: Remove a stray tab net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings net: ethernet: fec-mpc52xx: use phydev from struct net_device bpf, doc: fix typo on bpf_asm descriptions stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings net: ethernet: fs-enet: use phydev from struct net_device ...

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2016-05-17T16:33:39Z

Pull crypto update from Herbert Xu: "API: - Crypto self tests can now be disabled at boot/run time. - Add async support to algif_aead. Algorithms: - A large number of fixes to MPI from Nicolai Stange. - Performance improvement for HMAC DRBG. Drivers: - Use generic crypto engine in omap-des. - Merge ppc4xx-rng and crypto4xx drivers. - Fix lockups in sun4i-ss driver by disabling IRQs. - Add DMA engine support to ccp. - Reenable talitos hash algorithms. - Add support for Hisilicon SoC RNG. - Add basic crypto driver for the MXC SCC. Others: - Do not allocate crypto hash tfm in NORECLAIM context in ecryptfs" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits) crypto: qat - change the adf_ctl_stop_devices to void crypto: caam - fix caam_jr_alloc() ret code crypto: vmx - comply with ABIs that specify vrsave as reserved. crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime. crypto: ccp - constify ccp_actions structure crypto: marvell/cesa - Use dma_pool_zalloc crypto: qat - make adf_vf_isr.c dependant on IOV config crypto: qat - Fix typo in comments lib: asn1_decoder - add MODULE_LICENSE("GPL") crypto: omap-sham - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Use dma_request_chan() for requesting DMA channel crypto: omap-aes - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Integrate with the crypto engine framework crypto: s5p-sss - fix incorrect usage of scatterlists api crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks crypto: s5p-sss - Use common BIT macro crypto: mxc-scc - fix unwinding in mxc_scc_crypto_register() crypto: mxc-scc - signedness bugs in mxc_scc_ablkcipher_req_init() crypto: talitos - fix ahash algorithms registration crypto: ccp - Ensure all dependencies are specified ...

ipmi: Fix the I2C address extraction from SPMI tables

2016-05-17T00:49:49Z

Unlike everywhere else in the IPMI specification, the I2C address specified in the SPMI table is not shifted to the left one bit with the LSB zero. Instead it is not shifted with the MSB zero. Reported-by: Sanjeev Signed-off-by: Corey Minyard

IPMI: reserve memio regions separately

2016-05-17T00:49:48Z

Commit d61a3ead2680 ("[PATCH] IPMI: reserve I/O ports separately") changed the way I/O ports were reserved and includes this comment in log: Some BIOSes reserve disjoint I/O regions in their ACPI tables for the IPMI controller. This causes problems when trying to register the entire I/O region. Therefore we must register each I/O port separately. There is a similar problem with memio regions on an arm64 platform (AMD Seattle). Where I see: ipmi message handler version 39.2 ipmi_si AMDI0300:00: probing via device tree ipmi_si AMDI0300:00: ipmi_si: probing via ACPI ipmi_si AMDI0300:00: [mem 0xe0010000] regsize 1 spacing 4 irq 23 ipmi_si: Adding ACPI-specified kcs state machine IPMI System Interface driver. ipmi_si: Trying ACPI-specified kcs state machine at mem \ address 0xe0010000, slave address 0x0, irq 23 ipmi_si: Could not set up I/O space The problem is that the ACPI core registers disjoint regions for the platform device: e0010000-e0010000 : AMDI0300:00 e0010004-e0010004 : AMDI0300:00 and the ipmi_si driver tries to register one region e0010000-e0010004. Based on a patch from Mark Salter , who also wrote all the above text. Signed-off-by: Corey Minyard Tested-by: Mark Salter

ipmi: Fix some minor coding style issues

2016-05-17T00:49:48Z

Signed-off-by: Corey Minyard