- 29 Oct, 2015 1 commit
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Tomas Winkler authored
The correct lock order is cl_bus_lock device_lock me_clients_rwsem This order was violated in bus rescan and remove routines when me_client_rwsem was locked before cl_bus_lock. Chain exists of: [ 4.321653] &dev->device_lock --> &dev->me_clients_rwsem --> &dev->cl_bus_lock [ 4.321653] [ 4.321679] Possible unsafe locking scenario: [ 4.321679] [ 4.321693] CPU0 CPU1 [ 4.321701] ---- ---- [ 4.321709] lock(&dev->cl_bus_lock); [ 4.321720] lock(&dev->me_clients_rwsem); [ 4.321733] lock(&dev->cl_bus_lock); [ 4.321745] lock(&dev->device_lock); [ 4.321755] [ 4.321755] *** DEADLOCK *** [ 4.321755] Signed-off-by:Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 27 Oct, 2015 1 commit
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Alexander Kuleshov authored
Signed-off-by:
Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by:
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- 25 Oct, 2015 1 commit
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Amitoj Kaur Chawla authored
This patch replaces timeval with timespec64 as 32 bit 'struct timeval' will not give current time beyond 2038. The patch changes the code to use ktime_get_real_ts64() which returns a 'struct timespec64' instead of do_gettimeofday() which returns a 'struct timeval' This patch also alters the format string in pr_info() for now.tv_sec to incorporate 'long long' on 32 bit architectures. Signed-off-by:
Amitoj Kaur Chawla <amitoj1606@gmail.com> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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- 23 Oct, 2015 5 commits
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Moritz Fischer authored
Upon registering a FPGA Manager low level driver, FPGA Manager core overwrites the platform drvdata pointer. Prior to this commit zynq-fpga falsely relied on this pointer to still be valid at remove() time. Reported-by:
Alan Tull <atull@opensource.altera.com> Signed-off-by:
Moritz Fischer <moritz.fischer@ettus.com> Acked-by:
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Alan Tull authored
Remove unnecessary null pointer checks. We want the caller of these functions to do their own pointer checks. Add some comments to document this. Signed-off-by:
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Alan Tull authored
Ensure device and driver lifetime from of_fpga_mgr_get() to fpga_mgr_put(). * Don't put_device() in of_fpga_mgr_get, do it in fpga_mgr_put(). (still do put_device if there is an error). * Do module_get on the low level driver. * Don't need to module_get(THIS_MODULE) since we won't be allowed to unload the fpga manager core without unloading low level driver first. * Remove unnedessary null check for node pointer. Signed-off-by:
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Moritz Fischer authored
This gets rid of the code to strip away the header and byteswap, as well as the check for the sync word. Signed-off-by:
Josh Cartwright <joshc@ni.com> Acked-by:
Michal Simek <michal.simek@xilinx.com> Signed-off-by:
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Moritz Fischer authored
This commit fixes the unbalanced clock handling, where a failed probe would leave the clock with an enable count of -1. Reported-by:
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- 19 Oct, 2015 1 commit
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Vladimir Zapolskiy authored
The change fixes a warning found by sparse: drivers/misc/sram.c:134:20: warning: incorrect type in assignment (different address spaces) drivers/misc/sram.c:134:20: expected void *base drivers/misc/sram.c:134:20: got void [noderef] <asn:2>* Signed-off-by:
Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by:
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- 18 Oct, 2015 31 commits
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Mathieu Poirier authored
Supplementing ABI documentation with a description of the newly added interface. Signed-off-by:
Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by:
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Dmitry Kalinkin authored
Fixes an off by one array size. Signed-off-by:
Dmitry Kalinkin <dmitry.kalinkin@gmail.com> Signed-off-by:
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Moritz Fischer authored
This commit adds FPGA Manager support for the Xilinx Zynq chip. The code borrows some from the xdevcfg driver in Xilinx' vendor tree. Signed-off-by:
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Moritz Fischer authored
Added addtional nodes required for FPGA Manager operation of the Xilinx Zynq Devc configuration interface. Reviewed-by:
Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by:
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Moritz Fischer authored
Signed-off-by:
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Alexander Kapshuk authored
This patch is more of a personal preference, rather than a fix for a problem. The current implementation used a combination of both 'cat' and 'sed' to generate an unsorted list of kernel modules separated by while space. The proposed implementation uses 'sort' and 'sed' to generate a sort list of kernel modules separated by while space. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Arch Linux openSuSE 13.2 Signed-off-by:
Alexander Kapshuk <alexander.kapshuk@gmail.com> Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Tested on: Gentoo Linux Signed-off-by:
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Alexander Kapshuk authored
'udevinfo' no longer seems to be available across various distros. 'udevadm' seems to be the currently valid way to look up the 'udev' version. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Signed-off-by:
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Alexander Kapshuk authored
'loadkeys -h' no longer prints the version number across all distros, despite the claim to do so in the manpage, which I found to be the case on a Debian Linux system. The proposed implementation utilises the output of 'loadkeys -V' to acquire the version of both 'Kbd' and 'Console-tools'. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Neither 'libg++.so', nor 'libstdc++.so' were found where the current implementation expects them to be found in the distros below. Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Which results in zero ouput generated. The proposed implementation relies on 'ldconfig' to locate the libraries in question. 'Sed' is used to do the text processing. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'head' + 'awk'. The '-v' flag either seems to have been deprecated in some distros, e.g. Gentoo, or is an alias for '--version' in others. The proposed implementation uses the latter flag only. Signed-off-by:
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Alexander Kapshuk authored
The current implementation has been found not to work across all distros. The proposed implementation relies on 'sed' to both output the string 'Linux C Library' as well as to open '/proc/self/maps' without having to use output redirection. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Arch Linux openSuSE 13.2 Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Tested on: Oracle Linux Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'sed' + 'awk'. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Proposed implementation also eliminates the necessity to invoke 'grep' + 'sed' + 'awk'. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than rely on numerical input to be found in a particular input field. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Signed-off-by:
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Alexander Kapshuk authored
The current implementation relies on 'fdformat' to output the version of 'util-linux'. This does not seem to be reliable any longer, as 'fdformat' does not seem to come preinstalled in all ditros these days. The proposed implementation uses 'mount' to output both the version of 'util-linux' and 'mount' proper, as 'mount' is also a part of the 'util-linux' package. Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Rely on regex to find the version number, rather than a field number. Signed-off-by:
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Alexander Kapshuk authored
Current implementation output on Gentoo Linux: binutils 2.25.1 1.1 2.25.1 Proposed implementation: Binutils 2.25.1 Tested on: Gentoo Linux Debian 6.0.10 Oracle Linux Server release 7.1 Rely on regex to find the version number. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than a field number. Reduce the number of 'awk' invocations from two to one. Signed-off-by:
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Alexander Kapshuk authored
Rely on regex to find the version number, rather than a field number. Signed-off-by:
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Vladimir Zapolskiy authored
This change adds functionality to operate on reserved SRAM partitions described in device tree file. Two partition properties are added, "pool" and "export", the first one allows to share a specific partition for usage by a kernel consumer in the same manner as it is done for the whole SRAM device, and "export" property provides access to some SRAM area from userspace over sysfs interface. Practically it is possible to specify both properties for an SRAM partition, however simultaneous access from a kernel consumer and from userspace is not serialized, but still the combination may be useful for debugging purpose. The change opens the following scenarios of SRAM usage: * updates in a particular SRAM area specified by offset and size are done by bootloader, then this information is utilized by the kernel, * a particular SRAM area is rw accessed from userspace, the stored data is persistent on soft reboots, * a device driver secures SRAM area for its purposes, * etc. Note, strictly speaking the added optional properties describe policy of SRAM usage, rather than hardware, but here the policy mostly resembles flash partitions in devicetree, which is undoubtedly a very popular option but it does not describe hardware. Signed-off-by:
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Sudeep Dutt authored
Add entry for MIC drivers to the MAINTAINERS file Signed-off-by:
Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by:
Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by:
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Dan Carpenter authored
We should be returning -ENOMEM here instead of success. Fixes: ba612aa8 ('misc: mic: SCIF memory registration and unregistration') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
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Dan Carpenter authored
The caller expects that we take this lock again before returning otherwise it you get double unlocks and races. Fixes: ba612aa8 ('misc: mic: SCIF memory registration and unregistration') Signed-off-by:
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