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| * | | tpm/st33zp24/i2c: Change xxx_request_resources headerChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify st33zp24_i2c_acpi_request_resources, st33zp24_i2c_of_request_resources and st33zp24_i2c_request_resources to have the same prototype and using i2c_get_clientdata. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm: st33zp24: Add support for acpi probing for spi device.Christophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for acpi probing. SMO3324 is used for st33zp24. It has been tested with the following acpi node on Minnowboard: Device (TPM1) { Name (_ADR, Zero) // _ADR: Address Name (_HID, "SMO3324") // _HID: Hardware ID Name (_CID, "SMO3324") // _CID: Compatible ID Name (_DDN, "SMO TPM") // _DDN: DOS Device Name Name (_UID, One) // _UID: Unique ID Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Name (SBUF, ResourceTemplate () { SpiSerialBus (0, PolarityLow, FourWireMode, 8, ControllerInitiated, 4000000, ClockPolarityLow, ClockPhaseFirst, "\\_SB.SPI1", 0x00, ResourceConsumer, ,) GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000, "\\_SB.GPO2", 0x00, ResourceConsumer, ,) { // Pin list 0x0001 } GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly, "\\_SB.GPO2", 0x00, ResourceConsumer, ,) { // Pin list 0x0002, } }) Return (SBUF) /* \_SB_.SPI1.TPM1._CRS.SBUF */ } Method (_STA, 0, NotSerialized) // _STA: Status { Return (0x0F) } } Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24: Add support for acpi probing for i2c device.Christophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for acpi probing. SMO3324 is used for st33zp24. It has been tested with the following acpi node on Minnowboard: Device (TPM1) { Name (_ADR, Zero) // _ADR: Address Name (_HID, "SMO3324") // _HID: Hardware ID Name (_CID, "SMO3324") // _CID: Compatible ID Name (_DDN, "SMO TPM") // _DDN: DOS Device Name Name (_UID, One) // _UID: Unique ID Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Name (SBUF, ResourceTemplate () { I2cSerialBus (0x0013, ControllerInitiated, 400000, AddressingMode7Bit, "\\_SB.I2C7", 0x00, ResourceConsumer, ,) GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000, "\\_SB.GPO2", 0x00, ResourceConsumer, ,) { // Pin list 0x0001 } GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly, "\\_SB.GPO2", 0x00, ResourceConsumer, ,) { // Pin list 0x0002, } }) Return (SBUF) /* \_SB_.I2C7.TPM1._CRS.SBUF */ } Method (_STA, 0, NotSerialized) // _STA: Status { Return (0x0F) } } Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24: Extend Copyright headersChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend copyright header to 2016 Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24/spi: Improve st33zp24_spi_evaluate_latencyChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add check in st33zp24_spi_evaluate_latency helping to diagnose if the chip is present or in a bad state. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24: Auto-select core moduleChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The core st33zp24 module is useless without either the I2C or the SPI access module. So hide NFC_ST_NCI and select it automatically if either TCG_TIS_ST33ZP24_I2C or TCG_TIS_ST33ZP24_SPI is selected. This avoids presenting TCG_TIS_ST33ZP24 when neither TCG_TIS_ST33ZP24_I2C nor TCG_TIS_ST33ZP24_SPI can be selected. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24: Remove unneeded CONFIG_OF switchesChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DT headers already define NOOP routines when CONFIG_OF is not defined. [jarkko.sakkinen@linux.intel.com: I tested that the driver compiles without warnings and errors with and without CONFIG_OF flag.] Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24/spi: Remove field spi_xfer from st33zp24_spi_phy structureChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove spi_xfer from st33zp24_spi_phy structure and declare local spi_xfer when needed instead. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24/spi: Remove useless use of memcpy.Christophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An affectation is enough when copying 1 byte. Remove memcpy usage where possible. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24/spi: Use functions name with st33zp24_spi_ prefixChristophe RICARD2016-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure every function name use st33zp24_spi_ prefix. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
| * | | tpm/st33zp24/spi: Remove nbr_dummy_bytes variable usageChristophe RICARD2016-06-25
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | nbr_dummy_bytes variable could be easily replaced by phy->latency in st33zp24_spi_send and st33zp24_spi_recv. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
* | | Merge tag 'random_for_linus_stable' of ↵Linus Torvalds2016-07-28
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull random driver fix from Ted Ts'o: "Fix a boot failure on systems with non-contiguous NUMA id's" * tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: use for_each_online_node() to iterate over NUMA nodes
| * | | random: use for_each_online_node() to iterate over NUMA nodesTheodore Ts'o2016-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a crash on s390 with fake NUMA enabled. Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Fixes: 1e7f583af67b ("random: make /dev/urandom scalable for silly userspace programs") Signed-off-by: Theodore Ts'o <tytso@mit.edu>
* | | | Merge tag 'random_for_linus' of ↵Linus Torvalds2016-07-27
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull random driver updates from Ted Ts'o: "A number of improvements for the /dev/random driver; the most important is the use of a ChaCha20-based CRNG for /dev/urandom, which is faster, more efficient, and easier to make scalable for silly/abusive userspace programs that want to read from /dev/urandom in a tight loop on NUMA systems. This set of patches also improves entropy gathering on VM's running on Microsoft Azure, and will take advantage of a hw random number generator (if present) to initialize the /dev/urandom pool" (It turns out that the random tree hadn't been in linux-next this time around, because it had been dropped earlier as being too quiet. Oh well). * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: strengthen input validation for RNDADDTOENTCNT random: add backtracking protection to the CRNG random: make /dev/urandom scalable for silly userspace programs random: replace non-blocking pool with a Chacha20-based CRNG random: properly align get_random_int_hash random: add interrupt callback to VMBus IRQ handler random: print a warning for the first ten uninitialized random users random: initialize the non-blocking pool via add_hwgenerator_randomness()
| * | | random: strengthen input validation for RNDADDTOENTCNTTheodore Ts'o2016-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't allow RNDADDTOENTCNT or RNDADDENTROPY to accept a negative entropy value. It doesn't make any sense to subtract from the entropy counter, and it can trigger a warning: random: negative entropy/overflow: pool input count -40000 ------------[ cut here ]------------ WARNING: CPU: 3 PID: 6828 at drivers/char/random.c:670[< none >] credit_entropy_bits+0x21e/0xad0 drivers/char/random.c:670 Modules linked in: CPU: 3 PID: 6828 Comm: a.out Not tainted 4.7.0-rc4+ #4 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 ffffffff880b58e0 ffff88005dd9fcb0 ffffffff82cc838f ffffffff87158b40 fffffbfff1016b1c 0000000000000000 0000000000000000 ffffffff87158b40 ffffffff83283dae 0000000000000009 ffff88005dd9fcf8 ffffffff8136d27f Call Trace: [< inline >] __dump_stack lib/dump_stack.c:15 [<ffffffff82cc838f>] dump_stack+0x12e/0x18f lib/dump_stack.c:51 [<ffffffff8136d27f>] __warn+0x19f/0x1e0 kernel/panic.c:516 [<ffffffff8136d48c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:551 [<ffffffff83283dae>] credit_entropy_bits+0x21e/0xad0 drivers/char/random.c:670 [< inline >] credit_entropy_bits_safe drivers/char/random.c:734 [<ffffffff8328785d>] random_ioctl+0x21d/0x250 drivers/char/random.c:1546 [< inline >] vfs_ioctl fs/ioctl.c:43 [<ffffffff8185316c>] do_vfs_ioctl+0x18c/0xff0 fs/ioctl.c:674 [< inline >] SYSC_ioctl fs/ioctl.c:689 [<ffffffff8185405f>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:680 [<ffffffff86a995c0>] entry_SYSCALL_64_fastpath+0x23/0xc1 arch/x86/entry/entry_64.S:207 ---[ end trace 5d4902b2ba842f1f ]--- This was triggered using the test program: // autogenerated by syzkaller (http://github.com/google/syzkaller) int main() { int fd = open("/dev/random", O_RDWR); int val = -5000; ioctl(fd, RNDADDTOENTCNT, &val); return 0; } It's harmless in that (a) only root can trigger it, and (b) after complaining the code never does let the entropy count go negative, but it's better to simply not allow this userspace from passing in a negative entropy value altogether. Google-Bug-Id: #29575089 Reported-By: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: add backtracking protection to the CRNGTheodore Ts'o2016-07-03
| | | | | | | | | | | | | | | | Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: make /dev/urandom scalable for silly userspace programsTheodore Ts'o2016-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a system with a 4 socket (NUMA) system where a large number of application threads were all trying to read from /dev/urandom, this can result in the system spending 80% of its time contending on the global urandom spinlock. The application should have used its own PRNG, but let's try to help it from running, lemming-like, straight over the locking cliff. Reported-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: replace non-blocking pool with a Chacha20-based CRNGTheodore Ts'o2016-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The CRNG is faster, and we don't pretend to track entropy usage in the CRNG any more. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: properly align get_random_int_hashEric Biggers2016-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | get_random_long() reads from the get_random_int_hash array using an unsigned long pointer. For this code to be guaranteed correct on all architectures, the array must be aligned to an unsigned long boundary. Cc: stable@kernel.org Signed-off-by: Eric Biggers <ebiggers3@gmail.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: add interrupt callback to VMBus IRQ handlerStephan Mueller2016-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Hyper-V Linux Integration Services use the VMBus implementation for communication with the Hypervisor. VMBus registers its own interrupt handler that completely bypasses the common Linux interrupt handling. This implies that the interrupt entropy collector is not triggered. This patch adds the interrupt entropy collection callback into the VMBus interrupt handler function. Cc: stable@kernel.org Signed-off-by: Stephan Mueller <stephan.mueller@atsec.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: print a warning for the first ten uninitialized random usersTheodore Ts'o2016-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since systemd is consistently using /dev/urandom before it is initialized, we can't see the other potentially dangerous users of /dev/urandom immediately after boot. So print the first ten such complaints instead. Cc: stable@kernel.org Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * | | random: initialize the non-blocking pool via add_hwgenerator_randomness()Theodore Ts'o2016-06-13
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | If we have a hardware RNG and are using the in-kernel rngd, we should use this to initialize the non-blocking pool so that getrandom(2) doesn't block unnecessarily. Cc: stable@kernel.org Signed-off-by: Theodore Ts'o <tytso@mit.edu>
* | | Merge branch 'i2c/for-4.8' of ↵Linus Torvalds2016-07-27
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Here is the I2C pull request for 4.8: - the core and i801 driver gained support for SMBus Host Notify - core support for more than one address in DT - i2c_add_adapter() has now better error messages. We can remove all error messages from drivers calling it as a next step. - bigger updates to rk3x driver to support rk3399 SoC - the at24 eeprom driver got refactored and can now read special variants with unique serials or fixed MAC addresses. The rest is regular driver updates and bugfixes" * 'i2c/for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (66 commits) i2c: i801: use IS_ENABLED() instead of checking for built-in or module Documentation: i2c: slave: give proper example for pm usage Documentation: i2c: slave: describe buffer problems a bit better i2c: bcm2835: Don't complain on -EPROBE_DEFER from getting our clock i2c: i2c-smbus: drop useless stubs i2c: efm32: fix a failure path in efm32_i2c_probe() Revert "i2c: core: Cleanup I2C ACPI namespace" Revert "i2c: core: Add function for finding the bus speed from ACPI" i2c: Update the description of I2C_SMBUS i2c: i2c-smbus: fix i2c_handle_smbus_host_notify documentation eeprom: at24: tweak the loop_until_timeout() macro eeprom: at24: add support for at24mac series eeprom: at24: support reading the serial number for 24csxx eeprom: at24: platform_data: use BIT() macro eeprom: at24: split at24_eeprom_write() into specialized functions eeprom: at24: split at24_eeprom_read() into specialized functions eeprom: at24: hide the read/write loop behind a macro eeprom: at24: call read/write functions via function pointers eeprom: at24: coding style fixes eeprom: at24: move at24_read() below at24_eeprom_write() ...
| * | | i2c: add a protocol parameter to the alert callbackBenjamin Tissoires2016-06-17
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | .alert() is meant to be generic, but there is currently no way for the device driver to know which protocol generated the alert. Add a parameter in .alert() to help the device driver to understand what is given in data. This patch is required to have the support of SMBus Host Notify protocol through .alert(). Tested-by: Andrew Duggan <aduggan@synaptics.com> For hwmon: Acked-by: Guenter Roeck <linux@roeck-us.net> For IPMI: Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | | ipmi: remove trydefaults parameter and default initTony Camuso2016-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parameter trydefaults=1 causes the ipmi_init to initialize ipmi through the legacy port io space that was designated for ipmi. Architectures that do not map legacy port io can panic when trydefaults=1. Rather than implement build-time conditional exceptions for each architecture that does not map legacy port io, we have removed legacy port io from the driver. Parameter 'trydefaults' has been removed. Attempts to use it hereafter will evoke the "Unknown symbol in module, or unknown parameter" message. The patch was built against a number of architectures and tested for regressions and functionality on x86_64 and ARM64. Signed-off-by: Tony Camuso <tcamuso@redhat.com> Removed the config entry and the address source entry for default, since neither were used any more. Signed-off-by: Corey Minyard <cminyard@mvista.com>
* | | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2016-07-26
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge updates from Andrew Morton: - a few misc bits - ocfs2 - most(?) of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (125 commits) thp: fix comments of __pmd_trans_huge_lock() cgroup: remove unnecessary 0 check from css_from_id() cgroup: fix idr leak for the first cgroup root mm: memcontrol: fix documentation for compound parameter mm: memcontrol: remove BUG_ON in uncharge_list mm: fix build warnings in <linux/compaction.h> mm, thp: convert from optimistic swapin collapsing to conservative mm, thp: fix comment inconsistency for swapin readahead functions thp: update Documentation/{vm/transhuge,filesystems/proc}.txt shmem: split huge pages beyond i_size under memory pressure thp: introduce CONFIG_TRANSPARENT_HUGE_PAGECACHE khugepaged: add support of collapse for tmpfs/shmem pages shmem: make shmem_inode_info::lock irq-safe khugepaged: move up_read(mmap_sem) out of khugepaged_alloc_page() thp: extract khugepaged from mm/huge_memory.c shmem, thp: respect MADV_{NO,}HUGEPAGE for file mappings shmem: add huge pages support shmem: get_unmapped_area align huge page shmem: prepare huge= mount option and sysfs knob mm, rmap: account shmem thp pages ...
| * | | shmem: get_unmapped_area align huge pageHugh Dickins2016-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Provide a shmem_get_unmapped_area method in file_operations, called at mmap time to decide the mapping address. It could be conditional on CONFIG_TRANSPARENT_HUGEPAGE, but save #ifdefs in other places by making it unconditional. shmem_get_unmapped_area() first calls the usual mm->get_unmapped_area (which we treat as a black box, highly dependent on architecture and config and executable layout). Lots of conditions, and in most cases it just goes with the address that chose; but when our huge stars are rightly aligned, yet that did not provide a suitable address, go back to ask for a larger arena, within which to align the mapping suitably. There have to be some direct calls to shmem_get_unmapped_area(), not via the file_operations: because of the way shmem_zero_setup() is called to create a shmem object late in the mmap sequence, when MAP_SHARED is requested with MAP_ANONYMOUS or /dev/zero. Though this only matters when /proc/sys/vm/shmem_huge has been set. Link: http://lkml.kernel.org/r/1466021202-61880-29-git-send-email-kirill.shutemov@linux.intel.com Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'linus' of ↵Linus Torvalds2016-07-26
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.8: API: - first part of skcipher low-level conversions - add KPP (Key-agreement Protocol Primitives) interface. Algorithms: - fix IPsec/cryptd reordering issues that affects aesni - RSA no longer does explicit leading zero removal - add SHA3 - add DH - add ECDH - improve DRBG performance by not doing CTR by hand Drivers: - add x86 AVX2 multibuffer SHA256/512 - add POWER8 optimised crc32c - add xts support to vmx - add DH support to qat - add RSA support to caam - add Layerscape support to caam - add SEC1 AEAD support to talitos - improve performance by chaining requests in marvell/cesa - add support for Araneus Alea I USB RNG - add support for Broadcom BCM5301 RNG - add support for Amlogic Meson RNG - add support Broadcom NSP SoC RNG" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (180 commits) crypto: vmx - Fix aes_p8_xts_decrypt build failure crypto: vmx - Ignore generated files crypto: vmx - Adding support for XTS crypto: vmx - Adding asm subroutines for XTS crypto: skcipher - add comment for skcipher_alg->base crypto: testmgr - Print akcipher algorithm name crypto: marvell - Fix wrong flag used for GFP in mv_cesa_dma_add_iv_op crypto: nx - off by one bug in nx_of_update_msc() crypto: rsa-pkcs1pad - fix rsa-pkcs1pad request struct crypto: scatterwalk - Inline start/map/done crypto: scatterwalk - Remove unnecessary BUG in scatterwalk_start crypto: scatterwalk - Remove unnecessary advance in scatterwalk_pagedone crypto: scatterwalk - Fix test in scatterwalk_done crypto: api - Optimise away crypto_yield when hard preemption is on crypto: scatterwalk - add no-copy support to copychunks crypto: scatterwalk - Remove scatterwalk_bytes_sglen crypto: omap - Stop using crypto scatterwalk_bytes_sglen crypto: skcipher - Remove top-level givcipher interface crypto: user - Remove crypto_lookup_skcipher call crypto: cts - Convert to skcipher ...
| * | | hwrng: omap - Fix assumption that runtime_get_sync will always succeedNishanth Menon2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pm_runtime_get_sync does return a error value that must be checked for error conditions, else, due to various reasons, the device maynot be enabled and the system will crash due to lack of clock to the hardware module. Before: 12.562784] [00000000] *pgd=fe193835 12.562792] Internal error: : 1406 [#1] SMP ARM [...] 12.562864] CPU: 1 PID: 241 Comm: modprobe Not tainted 4.7.0-rc4-next-20160624 #2 12.562867] Hardware name: Generic DRA74X (Flattened Device Tree) 12.562872] task: ed51f140 ti: ed44c000 task.ti: ed44c000 12.562886] PC is at omap4_rng_init+0x20/0x84 [omap_rng] 12.562899] LR is at set_current_rng+0xc0/0x154 [rng_core] [...] After the proper checks: [ 94.366705] omap_rng 48090000.rng: _od_fail_runtime_resume: FIXME: missing hwmod/omap_dev info [ 94.375767] omap_rng 48090000.rng: Failed to runtime_get device -19 [ 94.382351] omap_rng 48090000.rng: initialization failed. Fixes: 665d92fa85b5 ("hwrng: OMAP: convert to use runtime PM") Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | hwrng: bcm2835 - Add support for Broadcom BCM5301xFlorian Fainelli2016-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Broadcom BCM5301x SoCs (Northstar) utilize the same random number generator peripheral as Northstar Plus and BCM2835, but just like the NSP SoC, we need to enable the interrupt. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | hwrng: meson - Add Amlogic Meson Hardware Random GeneratorNeil Armstrong2016-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the Amlogic Meson SoCs hardware random generator. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | hwrng: exynos - fixup IO accesorsBen Dooks2016-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The __raw IO functions are not endian safe, so use the readl_relaxed and writel_relaxed versions of these. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | hwrng: bcm2835 - Read as much data as availableYendapally Reddy Dhananjaya Reddy2016-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Read the requested number of data from the fifo Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | hwrng: bcm2835 - Support Broadcom NSP SoC rngYendapally Reddy Dhananjaya Reddy2016-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This supports the random number generator available in NSP SoC. Masks the rng interrupt for NSP. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | hwrng: stm32 - fix maybe uninitialized variable warningMaxime Coquelin2016-05-31
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following warning: drivers/char/hw_random/stm32-rng.c: In function 'stm32_rng_read': drivers/char/hw_random/stm32-rng.c:82:19: warning: 'sr' may be used uninitialized in this function Reported-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds2016-07-25
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm updates from Ingo Molnar: "Various x86 low level modifications: - preparatory work to support virtually mapped kernel stacks (Andy Lutomirski) - support for 64-bit __get_user() on 32-bit kernels (Benjamin LaHaise) - (involved) workaround for Knights Landing CPU erratum (Dave Hansen) - MPX enhancements (Dave Hansen) - mremap() extension to allow remapping of the special VDSO vma, for purposes of user level context save/restore (Dmitry Safonov) - hweight and entry code cleanups (Borislav Petkov) - bitops code generation optimizations and cleanups with modern GCC (H. Peter Anvin) - syscall entry code optimizations (Paolo Bonzini)" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits) x86/mm/cpa: Add missing comment in populate_pdg() x86/mm/cpa: Fix populate_pgd(): Stop trying to deallocate failed PUDs x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2 x86/smp: Remove unnecessary initialization of thread_info::cpu x86/smp: Remove stack_smp_processor_id() x86/uaccess: Move thread_info::addr_limit to thread_struct x86/dumpstack: Rename thread_struct::sig_on_uaccess_error to sig_on_uaccess_err x86/uaccess: Move thread_info::uaccess_err and thread_info::sig_on_uaccess_err to thread_struct x86/dumpstack: When OOPSing, rewind the stack before do_exit() x86/mm/64: In vmalloc_fault(), use CR3 instead of current->active_mm x86/dumpstack/64: Handle faults when printing the "Stack: " part of an OOPS x86/dumpstack: Try harder to get a call trace on stack overflow x86/mm: Remove kernel_unmap_pages_in_pgd() and efi_cleanup_page_tables() x86/mm/cpa: In populate_pgd(), don't set the PGD entry until it's populated x86/mm/hotplug: Don't remove PGD entries in remove_pagetable() x86/mm: Use pte_none() to test for empty PTE x86/mm: Disallow running with 32-bit PTEs to work around erratum x86/mm: Ignore A/D bits in pte/pmd/pud_none() x86/mm: Move swap offset/type up in PTE to work around erratum x86/entry: Inline enter_from_user_mode() ...
| * | | x86/mm/pat, /dev/mem: Remove superfluous error messageJiri Kosina2016-07-08
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently it's possible for broken (or malicious) userspace to flood a kernel log indefinitely with messages a-la Program dmidecode tried to access /dev/mem between f0000->100000 because range_is_allowed() is case of CONFIG_STRICT_DEVMEM being turned on dumps this information each and every time devmem_is_allowed() fails. Reportedly userspace that is able to trigger contignuous flow of these messages exists. It would be possible to rate limit this message, but that'd have a questionable value; the administrator wouldn't get information about all the failing accessess, so then the information would be both superfluous and incomplete at the same time :) Returning EPERM (which is what is actually happening) is enough indication for userspace what has happened; no need to log this particular error as some sort of special condition. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Toshi Kani <toshi.kani@hp.com> Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1607081137020.24757@cbobk.fhfr.pm Signed-off-by: Ingo Molnar <mingo@kernel.org>
* / | dsp56k: prevent a harmless underflowDan Carpenter2016-07-14
|/ / | | | | | | | | | | | | | | | | | | There is a mistake here where we don't allow "len" to be zero but we allow negative lengths. It's basically harmless in this case, but the underflow makes my static checker complain. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* / ipmi: Remove smi_msg from waiting_rcv_msgs list before handle_one_recv_msg()Junichi Nomura2016-06-13
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <j-nomura@ce.jp.nec.com> [Added a comment to describe why this works.] Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: stable@vger.kernel.org # 3.19 Tested-by: Ye Feng <yefeng.yl@alibaba-inc.com>
* Merge branch 'akpm' (patches from Andrew)Linus Torvalds2016-05-21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <akpm@linux-foundation.org>: (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 <commit-count> 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() ...
| * lib/uuid.c: move generate_random_uuid() to uuid.cAndy Shevchenko2016-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's gather the UUID related functions under one hood. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Mimi Zohar <zohar@linux.vnet.ibm.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'char-misc-4.7-rc1' of ↵Linus Torvalds2016-05-21
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 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 ...
| * | char: Drop bogus dependency of DEVPORT on !M68KGeert Uytterhoeven2016-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to full-history-linux commit d3794f4fa7c3edc3 ("[PATCH] M68k update (part 25)"), port operations are allowed on m68k if CONFIG_ISA is defined. However, commit 153dcc54df826d2f ("[PATCH] mem driver: fix conditional on isa i/o support") accidentally changed an "||" into an "&&", disabling it completely on m68k. This logic was retained when introducing the DEVPORT symbol in commit 4f911d64e04a44c4 ("Make /dev/port conditional on config symbol"). Drop the bogus dependency on !M68K to fix this. Fixes: 153dcc54df826d2f ("[PATCH] mem driver: fix conditional on isa i/o support") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Al Stone <ahs3@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | char/rtc: replace blacklist with whitelistArnd Bergmann2016-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Every new architecture has to add itself to the growing list of those that do not support the legacy PC RTC driver. This replaces the long list of architectures that don't support it with a shorter list of those that do. The list is taken from those architectures that have a non-empty asm/mc146818rtc.h header file and were not explicitly blacklisted or select RTC_LIB. Alpha and Loongson64 can already choose between this driver and an rtc-class based one. mn10300 is actually the only architecture now that still requires this driver, and that should be fairly easy to change to use rtc-cmos if we want to kill off rtc.ko for good. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | char: xillybus: use devm_add_action_or_resetSudip Mukherjee2016-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If devm_add_action() fails we are explicitly calling dma_unmap_single(), pci_unmap_single() and kfree(). Lets use the helper devm_add_action_or_reset() and return directly in case of error, as we know that the cleanup function has been already called by the helper if there was any error. At that same time remove the variable rc which becomes unused now. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge tag 'tty-4.7-rc1' of ↵Linus Torvalds2016-05-20
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty 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 ...
| * | tty: Replace ASYNC_INITIALIZED bit and update atomicallyPeter Hurley2016-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace ASYNC_INITIALIZED bit in the tty_port::flags field with TTY_PORT_INITIALIZED bit in the tty_port::iflags field. Introduce helpers tty_port_set_initialized() and tty_port_initialized() to abstract atomic bit ops. Note: the transforms for test_and_set_bit() and test_and_clear_bit() are unnecessary as the state transitions are already mutually exclusive; the tty lock prevents concurrent open/close/hangup. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | tty: Replace ASYNC_CHECK_CD and update atomicallyPeter Hurley2016-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace ASYNC_CHECK_CD bit in the tty_port::flags field with TTY_PORT_CHECK_CD bit in the tty_port::iflags field. Introduce helpers tty_port_set_check_carrier() and tty_port_check_carrier() to abstract the atomic bit ops. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | tty: Replace ASYNC_CTS_FLOW bit and update atomicallyPeter Hurley2016-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | Replace ASYNC_CTS_FLOW bit in the tty_port::flags field with TTY_PORT_CTS_FLOW bit in the tty_port::iflags field. Add tty_port_set_cts_flow() helper to abstract the atomic bit ops. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | tty: Replace TTY_THROTTLED bit tests with tty_throttled()Peter Hurley2016-04-30
| | | | | | | | | | | | | | | | | | | | | Abstract TTY_THROTTLED bit tests with tty_throttled(). Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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