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2014-01-22Merge tag 'pci-v3.14-changes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for the v3.14 merge window: Resource management - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas) - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu) - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas) - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas) - Enforce bus address limits in resource allocation (Yinghai Lu) - Allocate 64-bit BARs above 4G when possible (Yinghai Lu) - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu) PCI device hotplug - Major rescan/remove locking update (Rafael J. Wysocki) - Make ioapic builtin only (not modular) (Yinghai Lu) - Fix release/free issues (Yinghai Lu) - Clean up pciehp (Bjorn Helgaas) - Announce pciehp slot info during enumeration (Bjorn Helgaas) MSI - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev) - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev) - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev) - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman) - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong) SR-IOV - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao) Virtualization - Add support for save/restore of extended capabilities (Alex Williamson) - Add Virtual Channel to save/restore support (Alex Williamson) - Never treat a VF as a multifunction device (Alex Williamson) - Add pci_try_reset_function(), et al (Alex Williamson) AER - Ignore non-PCIe error sources (Betty Dall) - Support ACPI HEST error sources for domains other than 0 (Betty Dall) - Consolidate HEST error source parsers (Bjorn Helgaas) - Add a TLP header print helper (Borislav Petkov) Freescale i.MX6 - Remove unnecessary code (Fabio Estevam) - Make reset-gpio optional (Marek Vasut) - Report "link up" only after link training completes (Marek Vasut) - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut) - Fix PCIe startup code (Richard Zhu) Marvell MVEBU - Remove duplicate of_clk_get_by_name() call (Andrew Lunn) - Drop writes to bridge Secondary Status register (Jason Gunthorpe) - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe) - Support a bridge with no IO port window (Jason Gunthorpe) - Use max_t() instead of max(resource_size_t,) (Jingoo Han) - Remove redundant of_match_ptr (Sachin Kamat) - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni) NVIDIA Tegra - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower) Renesas R-Car - Add runtime PM support (Valentine Barshak) - Fix rcar_pci_probe() return value check (Wei Yongjun) Synopsys DesignWare - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen) - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen) - Fix missing MSI IRQs (Harro Haan) - Add dw_pcie prefix before cfg_read/write (Pratyush Anand) - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand) - Whitespace cleanup (Jingoo Han) EISA - Call put_device() if device_register() fails (Levente Kurusa) - Revert EISA initialization breakage ((Bjorn Helgaas) Miscellaneous - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger) - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas) - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas) - Use dev_is_pci() to identify PCI devices (Yijing Wang) - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches) - Update documentation 00-INDEX (Erik Ekman)" * tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits) Revert "EISA: Initialize device before its resources" Revert "EISA: Log device resources in dmesg" vfio-pci: Use pci "try" reset interface PCI: Check parent kobject in pci_destroy_dev() xen/pcifront: Use global PCI rescan-remove locking powerpc/eeh: Use global PCI rescan-remove locking PCI: Fix pci_check_and_unmask_intx() comment typos PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus() MPT / PCI: Use pci_stop_and_remove_bus_device_locked() platform / x86: Use global PCI rescan-remove locking PCI: hotplug: Use global PCI rescan-remove locking pcmcia: Use global PCI rescan-remove locking ACPI / hotplug / PCI: Use global PCI rescan-remove locking ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug PCI: Add global pci_lock_rescan_remove() PCI: Cleanup pci.h whitespace PCI: Reorder so actual code comes before stubs PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0 ACPICA: Add helper macros to extract bus/segment numbers from HEST table. PCI: Make local functions static ...
2014-01-21mm/memblock: remove unnecessary inclusions of bootmem.hGrygorii Strashko
Clean-up to remove depedency with bootmem headers. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Tejun Heo <tj@kernel.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Paul Walmsley <paul@pwsan.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security layer updates from James Morris: "Changes for this kernel include maintenance updates for Smack, SELinux (and several networking fixes), IMA and TPM" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (39 commits) SELinux: Fix memory leak upon loading policy tpm/tpm-sysfs: active_show() can be static tpm: tpm_tis: Fix compile problems with CONFIG_PM_SLEEP/CONFIG_PNP tpm: Make tpm-dev allocate a per-file structure tpm: Use the ops structure instead of a copy in tpm_vendor_specific tpm: Create a tpm_class_ops structure and use it in the drivers tpm: Pull all driver sysfs code into tpm-sysfs.c tpm: Move sysfs functions from tpm-interface to tpm-sysfs tpm: Pull everything related to /dev/tpmX into tpm-dev.c char: tpm: nuvoton: remove unused variable tpm: MAINTAINERS: Cleanup TPM Maintainers file tpm/tpm_i2c_atmel: fix coccinelle warnings tpm/tpm_ibmvtpm: fix unreachable code warning (smatch warning) tpm/tpm_i2c_stm_st33: Check return code of get_burstcount tpm/tpm_ppi: Check return value of acpi_get_name tpm/tpm_ppi: Do not compare strcmp(a,b) == -1 ima: remove unneeded size_limit argument from ima_eventdigest_init_common() ima: update IMA-templates.txt documentation ima: pass HASH_ALGO__LAST as hash algo in ima_eventdigest_init() ima: change the default hash algorithm to SHA1 in ima_eventdigest_ng_init() ...
2014-01-20Merge tag 'tty-3.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here's the big tty/serial driver pull request for 3.14-rc1 There are a number of n_tty fixes and cleanups, and some serial driver bugfixes, and we got rid of one obsolete driver, making this series remove more lines than added, always a nice surprise. All of these have been in linux-next with no reports of issues" * tag 'tty-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (60 commits) tty/serial: at91: disable uart timer at start of shutdown serial: 8250: enable UART_BUG_NOMSR for Tegra tty/serial: at91: reset rx_ring when port is shutdown tty/serial: at91: fix race condition in atmel_serial_remove tty/serial: at91: Handle shutdown more safely serial: sirf: correct condition for fetching dma buffer into tty serial: sirf: provide pm entries of uart_ops serial: sirf: use PM macro initialize PM functions serial: clps711x: Enable driver compilation with COMPILE_TEST serial: clps711x: Add support for N_IRDA line discipline tty: synclink: avoid sleep_on race tty/amiserial: avoid interruptible_sleep_on tty: delete non-required instances of include <linux/init.h> tty: an overflow of multiplication in drivers/tty/cyclades.c serial: Remove old SC26XX driver serial: add support for 200 v3 series Titan card serial: 8250: Fix initialisation of Quatech cards with the AMCC PCI chip tty: Removing the deprecated function tty_vhangup_locked() TTY/n_gsm: Removing the wrong tty_unlock/lock() in gsm_dlci_release() tty/serial: at91: document clock properties ...
2014-01-20Merge tag 'char-misc-3.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver patches from Greg KH: "Here's the big char/misc driver patches for 3.14-rc1. Lots of little things, and a new "big" driver, genwqe. Full details are in the shortlog" * tag 'char-misc-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits) mei: limit the number of consecutive resets mei: revamp mei reset state machine drivers/char: don't use module_init in non-modular ttyprintk.c VMCI: fix error handling path when registering guest driver extcon: gpio: Add power resume support Documentation: HOWTO: Updates on subsystem trees, patchwork, -next (vs. -mm) in ko_KR Documentation: HOWTO: update for 2.6.x -> 3.x versioning in ko_KR Documentation: HOWTO: update stable address in ko_KR Documentation: HOWTO: update LXR web link in ko_KR char: nwbutton: open-code interruptible_sleep_on mei: fix syntax in comments and debug output mei: nfc: mei_nfc_free has to be called under lock mei: use hbm idle state to prevent spurious resets mei: do not run reset flow from the interrupt thread misc: genwqe: fix return value check in genwqe_device_create() GenWQE: Fix warnings for sparc GenWQE: Fix compile problems for Alpha Documentation/misc-devices/mei/mei-amt-version.c: remove unneeded call of mei_deinit() GenWQE: Rework return code for flash-update ioctl sgi-xp: open-code interruptible_sleep_on_timeout ...
2014-01-13drivers/char: don't use module_init in non-modular ttyprintk.cPaul Gortmaker
The TTY_PRINTK option is bool, and hence this code is either present or absent. It will never be modular, so using module_init as an alias for __initcall is rather misleading. Fix this up now, so that we can relocate module_init from init.h into module.h in the future. If we don't do this, we'd have to add module.h to obviously non-modular code, and that would be a worse thing. Note that direct use of __initcall is discouraged, vs. one of the priority categorized subgroups. As __initcall gets mapped onto device_initcall, our use of device_initcall directly in this change means that the runtime impact is zero -- it will remain at level 6 in initcall ordering. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-08char: nwbutton: open-code interruptible_sleep_onArnd Bergmann
The nwbutton driver uses interruptible_sleep_on to wait for buttons getting pressed after we enter the read() function, which is inherently racy and cannot be fixed by using wait_event without changing the driver's user space interface. Instead, this patch just uses an open-coded variant of the same interruptible_sleep_on() call, so the driver behavior doesn't change but we remove the sleep_on family from the kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07tty: synclink: avoid sleep_on raceArnd Bergmann
The four variants of the synclink driver use the same code in their open() callback to wait for a port in process of being closed, using interruptible_sleep_on, which is racy and going away soon. Making things worse, these functions hold the BTM while doing so, which means that if we ever enter this code path, we cannot actually continue since the other thread that is in process of closing the port can no longer get the BTM. This addresses both issues by using wait_event_interruptible_tty() instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07agp/ati: Use PCI_COMMAND instead of hard-coded 4Bjorn Helgaas
We're accessing the PCI_COMMAND register here, so use the appropriate #define. The bit we're writing (1 << 14) isn't defined by the PCI or PCIe spec, so we don't have a name for it. No functional change. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-01-07agp/intel: Use CPU physical address, not bus address, for ioremap()Bjorn Helgaas
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr. These should use pci_resource_start() instead because we want the CPU physical address, not the bus address. If there were an AGP device behind a host bridge that translated addresses, e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware of any of those, but they are possible. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07agp/intel: Use pci_bus_address() to get GTTADR bus addressBjorn Helgaas
Per the Intel 915G/915GV/... Chipset spec (document number 301467-005), GTTADR is a standard PCI BAR. The PCI core reads GTTADR at enumeration-time. Use pci_bus_address() instead of reading it again in the driver. This works correctly for both 32-bit and 64-bit BARs. The spec above only mentions 32-bit GTTADR, but we should still use the standard interface. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07agp/intel: Use pci_bus_address() to get MMADR bus addressBjorn Helgaas
Per the Intel 915G/915GV/... Chipset spec (document number 301467-005), MMADR is a standard PCI BAR. The PCI core reads MMADR at enumeration-time. Use pci_bus_address() instead of reading it again in the driver. This works correctly for both 32-bit and 64-bit BARs. The spec above only mentions 32-bit MMADR, but we should still use the standard interface. Also, stop clearing the low 19 bits of the bus address because it's invalid to use addresses outside the region defined by the BAR. The spec claims MMADR is 512KB; if that's the case, those bits will be zero anyway. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07agp/intel: Support 64-bit GMADRYinghai Lu
Per the Intel 915G/915GV/... Chipset spec (document number 301467-005), GMADR is a standard PCI BAR. The PCI core reads GMADR at enumeration-time. Use pci_bus_address() instead of reading it again in the driver. This works correctly for both 32-bit and 64-bit BARs. The spec above only mentions 32-bit GMADR, but Yinghai's patch (link below) indicates some devices have a 64-bit GMADR. [bhelgaas: reworked starting from http://lkml.kernel.org/r/1385851238-21085-13-git-send-email-yinghai@kernel.org] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07agp/intel: Rename gtt_bus_addr to gtt_phys_addrBjorn Helgaas
The only use of gtt_bus_addr is as an argument to ioremap(), so it is a CPU physical address, not a bus address. Rename it to gtt_phys_addr to reflect this. No functional change. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07agp: Use pci_resource_start() to get CPU physical address for BARBjorn Helgaas
amd_irongate_configure(), ati_configure(), and nvidia_configure() call ioremap() on an address read directly from a BAR. But a BAR contains a bus address, and ioremap() expects a CPU physical address. Use pci_resource_start() to obtain the physical address. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-06agp: Support 64-bit APBASEBjorn Helgaas
Per the AGP 3.0 spec, APBASE is a standard PCI BAR and may be either 32 bits or 64 bits wide. Many drivers read APBASE directly, but they only handled 32-bit BARs. The PCI core reads APBASE at enumeration-time. Use pci_bus_address() instead of reading it again in the driver. This works correctly for both 32-bit and 64-bit BARs. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-06tpm/tpm-sysfs: active_show() can be staticFengguang Wu
so we make it static CC: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> CC: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: tpm_tis: Fix compile problems with CONFIG_PM_SLEEP/CONFIG_PNPJason Gunthorpe
If CONFIG_PM_SLEEP=n, CONFIG_PNP=y we get this warning: drivers/char/tpm/tpm_tis.c:706:13: warning: 'tpm_tis_reenable_interrupts' defined but not used [-Wunused-function] This seems to have been introduced in a2fa3fb0d 'tpm: convert tpm_tis driver to use dev_pm_ops from legacy pm_ops' Also, unpon reviewing, the #ifdefs around tpm_tis_pm are not right, the first reference is protected, the second is not. tpm_tis_pm is always defined so we can drop the #ifdef. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: Make tpm-dev allocate a per-file structureJason Gunthorpe
This consolidates everything that is only used within tpm-dev.c into tpm-dev.c and out of the publicly visible struct tpm_chip. The per-file allocation lays the ground work for someday fixing the strange forced O_EXCL behaviour of the current code. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com> Reviewed-by: Ashley Lai <adlai@linux.vnet.ibm.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: Use the ops structure instead of a copy in tpm_vendor_specificJason Gunthorpe
This builds on the last commit to use the ops structure in the core and reduce the size of tpm_vendor_specific. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com> Reviewed-by: Ashley Lai <adlai@linux.vnet.ibm.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: Create a tpm_class_ops structure and use it in the driversJason Gunthorpe
This replaces the static initialization of a tpm_vendor_specific structure in the drivers with the standard Linux idiom of providing a const structure of function pointers. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com> Reviewed-by: Ashley Lai <adlai@linux.vnet.ibm.com> [phuewe: did apply manually due to commit 191ffc6bde3 tpm/tpm_i2c_atmel: fix coccinelle warnings] Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: Pull all driver sysfs code into tpm-sysfs.cJason Gunthorpe
The tpm core now sets up and controls all sysfs attributes, instead of having each driver have a unique take on it. All drivers now now have a uniform set of attributes, and no sysfs related entry points are exported from the tpm core module. This also uses the new method used to declare sysfs attributes with DEVICE_ATTR_RO and 'struct attribute *' Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [phuewe: had to apply the tpm_i2c_atmel part manually due to commit 191ffc6bde3fc tpm/tpm_i2c_atmel: fix coccinelle warnings] Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: Move sysfs functions from tpm-interface to tpm-sysfsJason Gunthorpe
CLASS-sysfs.c is a common idiom for linux subsystems. This is the first step to pulling all the sysfs support code from the drivers into tpm-sysfs. This is a plain text copy from tpm-interface with support changes to make it compile. _tpm_pcr_read is made non-static and is called tpm_pcr_read_dev. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm: Pull everything related to /dev/tpmX into tpm-dev.cJason Gunthorpe
CLASS-dev.c is a common idiom for Linux subsystems This pulls all the code related to the miscdev into tpm-dev.c and makes it static. The identical file_operation structs in the drivers are purged and the tpm common code unconditionally creates the miscdev. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com> Reviewed-by: Ashley Lai <adlai@linux.vnet.ibm.com> [phuewe: tpm_dev_release is now used only in this file, thus the EXPORT_SYMBOL can be dropped and the function be marked as static. It has no other in-kernel users] Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06char: tpm: nuvoton: remove unused variableMichal Nazarewicz
“wait” wait queue is defined but never used in the function, thus it can be removed. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm/tpm_i2c_atmel: fix coccinelle warningsFengguang Wu
drivers/char/tpm/tpm_i2c_atmel.c:178:8-9: WARNING: return of 0/1 in function 'i2c_atmel_req_canceled' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: coccinelle/misc/boolreturn.cocci CC: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> CC: Peter Huewe <peterhuewe@gmx.de> Acked-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm/tpm_ibmvtpm: fix unreachable code warning (smatch warning)Peter Huewe
smatch complains: drivers/char/tpm/tpm_ibmvtpm.c:510 ibmvtpm_crq_process() info: ignoring unreachable code. -> The return is not necessary here, remove it Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm/tpm_i2c_stm_st33: Check return code of get_burstcountPeter Huewe
The 'get_burstcount' function can in some circumstances 'return -EBUSY' which in tpm_stm_i2c_send is stored in an 'u32 burstcnt' thus converting the signed value into an unsigned value, resulting in 'burstcnt' being huge. Changing the type to u32 only does not solve the problem as the signed value is converted to an unsigned in I2C_WRITE_DATA, resulting in the same effect. Thus -> Change type of burstcnt to u32 (the return type of get_burstcount) -> Add a check for the return value of 'get_burstcount' and propagate a potential error. This makes also sense in the 'I2C_READ_DATA' case, where the there is no signed/unsigned conversion. found by coverity Cc: stable@vger.kernel.org Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm/tpm_ppi: Check return value of acpi_get_namePeter Huewe
If status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); fails for whatever reason and does not return AE_OK if (strstr(buffer.pointer, context) != NULL) { does dereference a null pointer. -> Check the return value and return the status to the caller Found by coverity Cc: stable@vger.kernel.org Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-06tpm/tpm_ppi: Do not compare strcmp(a,b) == -1Peter Huewe
Depending on the implementation strcmp might return the difference between two strings not only -1,0,1 consequently if (strcmp (a,b) == -1) might lead to taking the wrong branch -> compare with < 0 instead, which in any case is more canonical. Cc: stable@vger.kernel.org Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2014-01-05ACPI / TPM: fix memory leak when walking ACPI namespaceJiang Liu
In function ppi_callback(), memory allocated by acpi_get_name() will get leaked when current device isn't the desired TPM device, so fix the memory leak. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-18i8k: Implement hwmon based fan speed controlGuenter Roeck
Fan speed can be set to off, slow, and fast, which can be exported to userspace through the hwmon ABI as pwm1 / pwm2. Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Stop reading SMM BIOS version during driver probeGuenter Roeck
This doesn't work on Studio, XPS, Vostro, and Precision laptops, and it doesn't provide any value except to cause confusion when it does not work. Drop it and always use DMI BIOS version instead. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Use driver_data field of dmi_system_id to override fan multiplierGuenter Roeck
At least on Studio 1555 and XPS M140, the fan speed is reported directly, not with the default speed multiplier of 30. Information on the web suggests that this may be true for other models as well, though it is unknown at this time which systems may be affected. Use the driver_data field of dmi_system_id to override the default fan multiplier value for the two systems known to use a multiplier of 1. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Add support for Dell XPS M140Guenter Roeck
Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Add support for Dell Studio laptopsGuenter Roeck
Tested with Dell Studio 1555. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Add copyrightGuenter Roeck
I made enough changes to the driver to warrant adding a copyright notice. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Force SMM to run on CPU 0Guenter Roeck
On Studio 1555 with dual-core CPU, reading sensor attributes exported by this driver resulted in random failures combined with system hangups and forced logouts. Information in drivers/firmware/dcdbas.c suggests that SMM accesses must run on CPU 0. With this patch, the problems are gone, suggesting that this is in fact the case. Code derived from drivers/firmware/dcdbas.c. Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Drop driver version number and info message at startupGuenter Roeck
The driver version number is long since obsolete, so drop it. Also, drop the info message at driver startup to reduce boot noise. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Remove obsolete link to out-of-tree driverGuenter Roeck
Accessing the link returns a page not found error. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Support additional temperature sensorsGuenter Roeck
The SMM API suggests that more than one temperature sensor is supported, so add support for them. Currently only supported for hwmon interface. Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Convert to use to hwmon_device_register_with_groups hwmon APIGuenter Roeck
Simplify code and fix race condition caused by registering hwmon device prior to creating sysfs attributes. Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Fix various checkpatch warnings and errorsGuenter Roeck
Fix: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h> WARNING: Use #include <linux/io.h> instead of <asm/io.h> WARNING: __packed is preferred over __attribute__((packed)) WARNING: externs should be avoided in .c files ERROR: spaces required around that ':' (ctx:ExV) ERROR: do not use assignment in if condition WARNING: line over 80 characters WARNING: __initdata should be placed after i8k_dmi_table[] ERROR: code indent should use tabs where possible WARNING: please, no spaces at the start of a line Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18i8k: Convert to use pr_ functions instead of printkGuenter Roeck
Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-18char: Int overflow in lp_do_ioctl().Yongjian Xu
arg comes from user-space, so int overflow may occur: LP_TIME(minor) = arg * HZ/100; Reported-by: Yongjian Xu <xuyongjiande@gmail.com> Suggested-by: Qixue Xiao <s2exqx@gmail.com> Signed-off-by: Yu Chen <chyyuu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-16Merge 3.13-rc4 into char-misc-nextGreg Kroah-Hartman
We want these fixes in here.
2013-12-08char: amd64-agp: remove DEFINE_PCI_DEVICE_TABLE macroJingoo Han
Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-08Merge tag 'char-misc-3.13-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Nothing huge, just a few small bugfixes for problems reported, and a device id update" * tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: mei: add 9 series PCH mei device ids drivers/char/i8k.c: add Dell XPLS L421X MAINTAINERS: add HSI subsystem misc: mic: Suppress memory space sparse warnings misc: mic: Fix endianness issues. misc: mic: Fix user space namespace pollution from mic_common.h. misc: mic: Bug fix for sysfs poll usage. misc: mic: Minor bug fix in 'retry' loops. misc: mic: Change mic_notify(...) to return true. extcon: remove freed groups caused the panic or warning in unregister flow extcon: arizona: Get pdata from arizona structure not device
2013-12-04drivers/char/i8k.c: add Dell XPLS L421XAlan Cox
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=60772 Signed-off-by: Alan Cox <alan@linux.intel.com> Reported-by: Leho Kraav <leho@kraav.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
Pull crypto update from Herbert Xu: - Made x86 ablk_helper generic for ARM - Phase out chainiv in favour of eseqiv (affects IPsec) - Fixed aes-cbc IV corruption on s390 - Added constant-time crypto_memneq which replaces memcmp - Fixed aes-ctr in omap-aes - Added OMAP3 ROM RNG support - Add PRNG support for MSM SoC's - Add and use Job Ring API in caam - Misc fixes [ NOTE! This pull request was sent within the merge window, but Herbert has some questionable email sending setup that makes him public enemy #1 as far as gmail is concerned. So most of his emails seem to be trapped by gmail as spam, resulting in me not seeing them. - Linus ] * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (49 commits) crypto: s390 - Fix aes-cbc IV corruption crypto: omap-aes - Fix CTR mode counter length crypto: omap-sham - Add missing modalias padata: make the sequence counter an atomic_t crypto: caam - Modify the interface layers to use JR API's crypto: caam - Add API's to allocate/free Job Rings crypto: caam - Add Platform driver for Job Ring hwrng: msm - Add PRNG support for MSM SoC's ARM: DT: msm: Add Qualcomm's PRNG driver binding document crypto: skcipher - Use eseqiv even on UP machines crypto: talitos - Simplify key parsing crypto: picoxcell - Simplify and harden key parsing crypto: ixp4xx - Simplify and harden key parsing crypto: authencesn - Simplify key parsing crypto: authenc - Export key parsing helper function crypto: mv_cesa: remove deprecated IRQF_DISABLED hwrng: OMAP3 ROM Random Number Generator support crypto: sha256_ssse3 - also test for BMI2 crypto: mv_cesa - Remove redundant of_match_ptr crypto: sahara - Remove redundant of_match_ptr ...
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