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2014-07-31ACPICA: Remove some extraneous printf arguments.Sascha Wildner
Arguments that have no associated % format specifier. Apparently these are not caught by any current compilers. ACPICA BZ 1090. Sascha Wildner. Currently, this patch only affects applications under the toos/power/acpi folder. Link: https://bugs.acpica.org/show_bug.cgi?id=1090 Signed-off-by: Sascha Wildner <swildner@gmail.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31ACPICA: Update for comments/formatting. No functional changes.Bob Moore
Fix some issues detected by acpisrc utility. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31ACPICA: Disassembler: Add support for the ToUUID opererator (macro).Bob Moore
This change adds support to disassemble a UUID back to the original ToUUID operator. It will detect a UUID within a standard AML Buffer. Also, a description of the UUID is emitted for "known" UUIDs, defined as UUIDs that are defined in the ACPI specification. Since this is a change for disassembler which is not shipped in the Linux kernel, the Linux kernel is not affected. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31ACPICA: Remove a redundant cast to acpi_size for ACPI_OFFSET() macro.Bob Moore
It is already casted to acpi_size by ACPI_PTR_DIFF() macro. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-31ACPICA: Work around an ancient GCC bug.Bob Moore
warning: cast from function call of type 'char *' to non-matching type 'long unsigned int' Since acpi_ut_format_number() hasn't been enabled for the Linux kernel, this patch doesn't affect the Linux kernel. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-07-30[media] radio-miropcm20: fix sparse NULL pointer warningWei Yongjun
Fixes the following sparse warnings: drivers/media/radio/radio-miropcm20.c:193:33: warning: Using plain integer as NULL pointer Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] MAINTAINERS: Update go7007 patternJoe Perches
Commit 7955f03d18d1 ("[media] go7007: move out of staging into drivers/media/usb") moved the files, update the pattern. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] MAINTAINERS: Update solo6x10 patternsJoe Perches
commit 28cae868cd24 ("[media] solo6x10: move out of staging into drivers/media/pci") moved the files, update the patterns. Signed-off-by: Joe Perches <joe@perches.com> cc: Ismael Luceno <ismael.luceno@corp.bluecherry.net> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] media: atmel-isi: add primary DT supportJosh Wu
This patch add the DT support for Atmel ISI driver. It use the same v4l2 DT interface that defined in video-interfaces.txt. Signed-off-by: Josh Wu <josh.wu@atmel.com> Cc: devicetree@vger.kernel.org Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] media: atmel-isi: convert the pdata from pointer to structureJosh Wu
Now the platform data is initialized by allocation of isi structure. In the future, we use pdata to store the dt parameters. Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30f2fs: remove redundant lines in allocate_data_blockDongho Sim
There are redundant lines in allocate_data_block. In this function, we call refresh_sit_entry with old seg and old curseg. After that, we call locate_dirty_segment with old curseg. But, the new address is always allocated from old curseg and we call locate_dirty_segment with old curseg in refresh_sit_entry. So, we do not need to call locate_dirty_segment with old curseg again. We've discussed like below: Jaegeuk said: "When considering SSR, we need to take care of the following scenario. - old segno : X - new address : Z - old curseg : Y This means, a new block is supposed to be written to Z from X. And Z is newly allocated in the same path from Y. In that case, we should trigger locate_dirty_segment for Y, since it was a current_segment and can be dirty owing to SSR. But that was not included in the dirty list." Changman said: "We already choosed old curseg(Y) and then we allocate new address(Z) from old curseg(Y). After that we call refresh_sit_entry(old address, new address). In the funcation, we call locate_dirty_segment with old seg and old curseg. So calling locate_dirty_segment after refresh_sit_entry again is redundant." Jaegeuk said: "Right. The new address is always allocated from old_curseg." Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Dongho Sim <dh.sim@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30[media] media: atmel-isi: add v4l2 async probe supportJosh Wu
Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] rcar_vin: add devicetree supportBen Dooks
Add support for devicetree probe for the rcar-vin driver. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> [g.liakhovetski@gmx.de fix a typo, sort headers alphabetically] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] media: pxa_camera device-tree supportRobert Jarzmik
Add device-tree support to pxa_camera host driver. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> [g.liakhovetski@gmx.de: added of_node_put()] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] media: mt9m111: add device-tree suppportRobert Jarzmik
Add device-tree support for mt9m111 camera sensor. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] soc_camera: add support for dt binding soc_camera driversBen Dooks
Add initial support for OF based soc-camera devices that may be used by any of the soc-camera drivers. The driver itself will need converting to use OF. These changes allow the soc-camera driver to do the connecting of any async capable v4l2 device to the soc-camera driver. This has currently been tested on the Renesas Lager board. It currently only supports one input device per driver as this seems to be the standard connection for these devices. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> [g.liakhovetski@gmx.de add check for multiple subdevices] Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Tested-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] media: soc_camera: pxa_camera documentation device-tree supportRobert Jarzmik
Add device-tree bindings documentation for pxa_camera driver. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] media: mt9m111: add device-tree documentationRobert Jarzmik
Add device-tree bindings documentation for the Micron mt9m111 image sensor. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] s5p-mfc: remove unnecessary calling to function video_devdata()Zhaowei Yuan
Since we have get vdev by calling video_devdata() at the beginning of s5p_mfc_open(), we should just use vdev instead of calling video_devdata() again in the following code. Signed-off-by: Zhaowei Yuan <zhaowei.yuan@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] s5p-jpeg: add chroma subsampling adjustment for Exynos3250Jacek Anaszewski
Take into account limitations specific to the Exynos3250 SoC, regarding setting the chroma subsampling control's value. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-31HSI: omap_ssi: Fix return value check in ssi_debug_add_ctrl()Wei Yongjun
In case of error, the function debugfs_create_*() returns NULL pointer not ERR_PTR() if debugfs is enabled. The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-31HSI: omap_ssi_port: Fix return value check in ssi_debug_add_port()Wei Yongjun
In case of error, the function debugfs_create_*() returns NULL pointer not ERR_PTR() if debugfs is enabled. The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-30[media] s5p-jpeg: Prevent erroneous downscaling for Exynos3250 SoCJacek Anaszewski
JPEG codec on Exynos3250 SoC produces broken raw image if a JPEG image is decoded to YUV420 format and downscaled by a factor greater than 2. Prevent this by asserting downscale ratio to 2. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] s5p-jpeg: Assure proper crop rectangle initializationJacek Anaszewski
Assure proper crop_rect initialization in case the user space doesn't call S_SELECTION ioctl. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30ip_tunnel(ipv4): fix tunnels with "local any remote $remote_ip"Dmitry Popov
Ipv4 tunnels created with "local any remote $ip" didn't work properly since 7d442fab0 (ipv4: Cache dst in tunnels). 99% of packets sent via those tunnels had src addr = 0.0.0.0. That was because only dst_entry was cached, although fl4.saddr has to be cached too. Every time ip_tunnel_xmit used cached dst_entry (tunnel_rtable_get returned non-NULL), fl4.saddr was initialized with tnl_params->saddr (= 0 in our case), and wasn't changed until iptunnel_xmit(). This patch adds saddr to ip_tunnel->dst_cache, fixing this issue. Reported-by: Sergey Popov <pinkbyte@gentoo.org> Signed-off-by: Dmitry Popov <ixaphire@qrator.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30[media] s5p-jpeg: fix g_selection opJacek Anaszewski
V4L2_SEL_TGT_COMPOSE_DEFAULT switch case should select whole available area of the image and V4L2_SEL_TGT_COMPOSE should apply user settings. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] s5p-jpeg: Adjust jpeg_bound_align_image to Exynos3250 needsJacek Anaszewski
The jpeg_bound_align_image function needs to know the context in which it is called, as it needs to align image dimensions in a slight different manner for Exynos3250, which crops pixels for specific values in case the format is RGB. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] s5p-jpeg: return error immediately after get_byte failsJacek Anaszewski
When parsing JPEG header s5p_jpeg_parse_hdr function should return immediately in case there was an error while reading a byte. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30[media] s5p-jpeg: Add support for Exynos3250 SoCJacek Anaszewski
This patch adds support for jpeg codec on Exynos3250 SoC to the s5p-jpeg driver. Supported raw formats are: YUYV, YVYU, UYVY, VYUY, RGB565, RGB565X, RGB32, NV12, NV21. The support includes also scaling and cropping features. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30net: stmmac: add platform init/exit for Altera's ARM socfpgaVince Bridgers
This patch adds platform init/exit functions and modifications to support suspend/resume for the Altera Cyclone 5 SOC Ethernet controller. The platform exit function puts the controller into reset using the socfpga reset controller driver. The platform init function sets up the Synopsys mac by first making sure the Ethernet controller is held in reset, programming the phy mode through external support logic, then deasserts reset through the socfpga reset manager driver. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30[media] s5p-jpeg: Document sclk-jpeg clock for Exynos3250 SoCJacek Anaszewski
JPEG IP on Exynos3250 SoC requires enabling two clock gates for its operation. This patch documents this requirement. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-30MIPS: ptrace: Change GP regset to use correct core dump register layoutAlex Smith
Commit 6a9c001b7ec3 ("MIPS: Switch ELF core dumper to use regsets.") switched the core dumper to use regsets, however the GP regset code simply makes a direct copy of the kernel's pt_regs, which does not match the original core dump register layout as defined in asm/reg.h. Furthermore, the definition of pt_regs can vary with certain Kconfig variables, therefore the GP regset can never be relied upon to return registers in the same layout. Therefore, this patch changes the GP regset to match the original core dump layout. The layout differs for 32- and 64-bit processes, so separate implementations of the get/set functions are added for the 32- and 64-bit regsets. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: <stable@vger.kernel.org> # v3.13+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7452/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the same timeAlex Smith
Get rid of the WANT_COMPAT_REG_H test and instead define both the 32- and 64-bit register offset definitions at the same time with MIPS{32,64}_ prefixes, then define the existing EF_* names to the correct definitions for the kernel's bitness. This patch is a prerequisite of the following bug fix patch. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: <stable@vger.kernel.org> # v3.13+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7451/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30MIPS: ptrace: Test correct task's flags in task_user_regset_view()Alex Smith
task_user_regset_view() should test for TIF_32BIT_REGS in the flags of the specified task, not of the current task. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: <stable@vger.kernel.org> # v3.13+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7450/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30MIPS: ptrace: Avoid smp_processor_id() when retrieving FPU IRAlex Smith
Whenever ptrace attempts to retrieve the FPU implementation register it accesses it through current_cpu_data, which calls smp_processor_id(). Since the code may execute with preemption enabled, this can trigger a warning. Fix this by using boot_cpu_data to get the IR instead. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7449/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30MIPS: BCM47XX: Detect more then 128 MiB of RAM (HIGHMEM)Rafał Miłecki
So far BCM47XX can only detect amount of HIGHMEM. It still requires adding (registering) and well-testing before enabling by default. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7396/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30Revert "MIPS: Delete unused function add_temporary_entry."Rafał Miłecki
This reverts commit d7a887a73dec6c387b02a966a71aac767bbd9ce6. Function add_temporary_entry is needed by bcm47xx to support highmem. We need to add a temporary entry to check for amount of RAM. The only change made in this revert was replacing (ENTER|EXIT)_CRITICAL. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/7395/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30f2fs: add tracepoint for f2fs_issue_flushJaegeuk Kim
This patch adds a tracepoint for f2fs_issue_flush. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30f2fs: avoid retrying wrong recovery routine when error was occurredJaegeuk Kim
This patch eliminates the propagation of recovery errors to the next mount. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30f2fs: test before set/clear bitsJaegeuk Kim
If the bit is already set, we don't need to reset it, and vice versa. Because we don't need to make the caches dirty for that. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30f2fs: fix wrong condition for unlikelyJaegeuk Kim
This patch fixes the wrongly used unlikely condition. Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30f2fs: enable in-place-update for fdatasyncJaegeuk Kim
This patch enforces in-place-updates only when fdatasync is requested. If we adopt this in-place-updates for the fdatasync, we can skip to write the recovery information. Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30f2fs: skip unnecessary data writes during fsyncJaegeuk Kim
This patch intends to improve the fsync performance by skipping remaining the recovery information, only when there is no data that we should recover. Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-30MIPS: BCM47XX: Devices database update for 3.17Rafał Miłecki
Detect more devices and register leds & buttons for them. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7394/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30Merge branch 'mlx5-next'David S. Miller
Eli Cohen says: ==================== mlx5 driver changes related to PCI handling *** The first of these patches is changing the pci device driver from mlx5_ib to mlx5_core in a similar manner it is done in mlx4. This set the grounds for us to introduce Ethernet driver for HW which uses mlx5. The other two patches contain minor fixes. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30mlx5: Adjust events to use unsigned long param instead of void *Jack Morgenstein
In the event flow, we currently pass only a port number in the void *data argument. Rather than pass a pointer to the event handlers, we should use an "unsigned long" parameter, and pass the port number value directly. In the future, if necessary for some events, we can use the unsigned long parameter to pass a pointer. Based on a patch by Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30mlx5: minor fixes (mainly avoidance of hidden casts)Jack Morgenstein
There were many places where parameters which should be u8/u16 were integer type. Additionally, in 2 places, a check for a non-null pointer was added before dereferencing the pointer (this is actually a bug fix). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30mlx5: Move pci device handling from mlx5_ib to mlx5_coreJack Morgenstein
In preparation for a new mlx5 device which is VPI (i.e., ports can be either IB or ETH), move the pci device functionality from mlx5_ib to mlx5_core. This involves the following changes: 1. Move mlx5_core_dev struct out of mlx5_ib_dev. mlx5_core_dev is now an independent structure maintained by mlx5_core. mlx5_ib_dev now has a pointer to that struct. This requires changing a lot of places where the core_dev struct was accessed via mlx5_ib_dev (now, this needs to be a pointer dereference). 2. All PCI initializations are now done in mlx5_core. Thus, it is now mlx5_core which does pci_register_device (and not mlx5_ib, as was previously). 3. mlx5_ib now registers itself with mlx5_core as an "interface" driver. This is very similar to the mechanism employed for the mlx4 (ConnectX) driver. Once the HCA is initialized (by mlx5_core), it invokes the interface drivers to do their initializations. 4. There is a new event handler which the core registers: mlx5_core_event(). This event handler invokes the event handlers registered by the interfaces. Based on a patch by Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30bna: fill the magic in bnad_get_eeprom() instead of validatingIvan Vecera
A driver should fill magic field of ethtool_eeprom struct in .get_eeprom and validate it in .set_eeprom. The bna incorrectly validates it in both and this makes its .get_eeprom interface unusable. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-30random32: mix in entropy from core to late initcallHannes Frederic Sowa
Currently, we have a 3-stage seeding process in prandom(): Phase 1 is from the early actual initialization of prandom() subsystem which happens during core_initcall() and remains most likely until the beginning of late_initcall() phase. Here, the system might not have enough entropy available for seeding with strong randomness from the random driver. That means, we currently have a 32bit weak LCG() seeding the PRNG status register 1 and mixing that successively into the other 3 registers just to get it up and running. Phase 2 starts with late_initcall() phase resp. when the random driver has initialized its non-blocking pool with enough entropy. At that time, we throw away *all* inner state from its 4 registers and do a full reseed with strong randomness. Phase 3 starts right after that and does a periodic reseed with random slack of status register 1 by a strong random source again. A problem in phase 1 is that during bootup data structures can be initialized, e.g. on module load time, and thus access a weakly seeded prandom and are never changed for the rest of their live-time, thus carrying along the results from a week seed. Lets make sure that current but also future users access a possibly better early seeded prandom. This patch therefore improves phase 1 by trying to make it more 'unpredictable' through mixing in seed from a possible hardware source. Now, the mix-in xors inner state with the outcome of either of the two functions arch_get_random_{,seed}_int(), preferably arch_get_random_seed_int() as it likely represents a non-deterministic random bit generator in hw rather than a cryptographically secure PRNG in hw. However, not all might have the first one, so we use the PRNG as a fallback if available. As we xor the seed into the current state, the worst case would be that a hardware source could be unverifiable compromised or backdoored. In that case nevertheless it would be as good as our original early seeding function prandom_seed_very_weak() since we mix through xor which is entropy preserving. Joint work with Daniel Borkmann. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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