- 20 May, 2015 4 commits
-
-
Stefan Agner authored
Add defconfig for Linux on Vybrid (vf610) on the secondary Cortex- M4 CPU. The use of a XIP image has been tested which needs to be loaded (e.g. using the custom m4boot loader) to the end of the available RAM at address 0x8f000000. The Cortex-M4 has a code-alias which makes sure that the instructions get fetched through the code bus (alias starts at 0x00800000 => 0x80800000 in system address). Hence, to get optimal performance, use 0x0f000000 as XIP_PHYS_ADDR. This address is additionally shifted by the length of the minimal loader which is inserted by m4boot. Currently, this offset is 0x80. The standard DRAM base address is configured to 0x8C000000, which gives the Cortex-M4 48MiB of RAM. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Arnd Bergmann authored
Merge tag 'at91-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/defconfig Merge "First batch of defconfig changes for 4.2" from Nicolas Ferre: - fixed regulators for sd/mmc - addition of AT91 to the multi_v7_defconfig * tag 'at91-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: ARM: multi_v7_defconfig: Add Atmel SAMA5 family ARM: at91/defconfig: add CONFIG_REGULATOR_FIXED_VOLTAGE for mmc driver Conflicts: arch/arm/configs/multi_v7_defconfig
-
Arnd Bergmann authored
The original stm32 defconfig file looks for a ./rootfs.cpio file, but that breaks with ../scripts/gen_initramfs_list.sh: Cannot open './rootfs.cpio' when trying to build this kernel. Anybody who relies on the current behavior should change their build scripts to append the initramfs manually, as this patch removes that default in order to help autmatic testing. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
-
Arnd Bergmann authored
The original zx defconfig file looks for a ./rootfs.cpio file, but that breaks with scripts/gen_initramfs_list.sh: Cannot open 'initramfs.cpio.gz' when trying to build this kernel. Anybody who relies on the current behavior should change their build scripts to append the initramfs manually, as this patch removes that default in order to help autmatic testing. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jun Nie <jun.nie@linaro.org>
-
- 19 May, 2015 2 commits
-
-
Alexandre Belloni authored
Add the Atmel sama5d3 and sama5d4 and their peripherals to multi_v7_defconfig. Note that the console will be ttyAT0 instead of the usual ttyS0. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
-
Nicolas Ferre authored
As an update of the sd/mmc DT definition needs the fixed voltage regulator, add it to the at91 defconfigs. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
-
- 15 May, 2015 4 commits
-
-
Maxime Coquelin authored
This patch adds a new config for STM32 MCUs. STM32F429 Discovery board boots successfully with this config applied. Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Jun Nie authored
Add basic defconfig support to zx SOC, including uart, mmc and other common config Signed-off-by: Jun Nie <jun.nie@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Joachim Eastwood authored
Kernel configuration for NXP LPC18xx and LPC43xx devices. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Arnd Bergmann authored
Merge tag 'renesas-defconfig-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/defconfig Merge "Renesas ARM Based SoC Defconfig Updates for v4.2" from Simon Horman: * Replace legacy-only USB_RCAR_GEN2_PHY with DT-only PHY_RCAR_GEN2 * tag 'renesas-defconfig-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: defconfig: Replace USB_RCAR_GEN2_PHY by PHY_RCAR_GEN2
-
- 13 May, 2015 3 commits
-
-
Arnd Bergmann authored
Merge tag 'tegra-for-4.2-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/defconfig Merge "ARM: tegra: Default configuration updates for v4.2-rc1" from Thierry Reding: This is a set of changes to the Tegra default configuration that enable various new features (HDMI audio, watchdog) on Toradex Apalis T30. * tag 'tegra-for-4.2-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: Update default configuration
-
Linus Walleij authored
This enables the CoreSight blocks found on the Ux500 SoC into the Ux500 defconfig. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Linus Walleij authored
The Ux500 has a perfectly working PMU so let's put the perf events into the defconfig. This will activate HW_PERF_EVENTS by default. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
- 12 May, 2015 6 commits
-
-
Ard Biesheuvel authored
Enable all drivers under CONFIG_ARM_CRYPTO as modules. Enable CONFIG_KERNEL_MODE_NEON as well so that the modules that either contain a NEON alternative or consist solely of a NEON (or ARMv8 crypto extensions) accelerated implementation are enabled fully as well. Note that the ARMv8 modules will only be built if the detected toolchain version is recent enough (binutils 2.23 or higher). Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Geert Uytterhoeven authored
The legacy-only USB_RCAR_GEN2_PHY driver was replaced by the DT-only PHY_RCAR_GEN2 driver. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
git://github.com/hisilicon/linux-hisiArnd Bergmann authored
Merge "ARM: HIP04: configure updates for 4.2" from Wei Xu: - Enable ethernet on hip04 SoC - Enable Sysnopsis GPIO controller on hip04 SoC * tag 'hip04-config-for-4.2' of git://github.com/hisilicon/linux-hisi: ARM: defconfig: hisi: enable HiSilicon hip04 ethernet controller ARM: hip04: add GPIO configure in hisi_defconfig
-
Masahiro Yamada authored
Add UniPhier, a new citizen in the ARM multi platform. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
Arnd Bergmann authored
Merge tag 'sti-defconfig-for-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti into next/defconfig Merge "STi defconfig for v4.2, round 1" from Maxime Coquelin: Highlights: ----------- - Enable ST's LPC Watchdog driver - Enable ST's LPC RTC driver * tag 'sti-defconfig-for-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti: ARM: multi_v7_defconfig: Enable support for ST's LPC RTC ARM: multi_v7_defconfig: Enable support for ST's LPC Watchdog
-
Baruch Siach authored
This enables the digicolor drivers that are already merged as part of the multi_v7_defconfig file. [arnd: change rtc and i2c to loadable modules] Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-
- 10 May, 2015 6 commits
-
-
Linus Torvalds authored
-
git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "I really need to get back to sending these on my Friday, instead of my Monday morning, but nothing too amazing in here: a few amdkfd fixes, a few radeon fixes, i915 fixes, one tegra fix and one core fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm: Zero out invalid vblank timestamp in drm_update_vblank_count. drm/tegra: Don't use vblank_disable_immediate on incapable driver. drm/radeon: stop trying to suspend UVD sessions drm/radeon: more strictly validate the UVD codec drm/radeon: make UVD handle checking more strict drm/radeon: make VCE handle check more strict drm/radeon: fix userptr lockup drm/radeon: fix userptr BO unpin bug v3 drm/amdkfd: Initialize sdma vm when creating sdma queue drm/amdkfd: Don't report local memory size drm/amdkfd: allow unregister process with queues drm/i915: Drop PIPE-A quirk for 945GSE HP Mini drm/i915: Sink rate read should be saved in deca-kHz drm/i915/dp: there is no audio on port A drm/i915: Add missing MacBook Pro models with dual channel LVDS drm/i915: Assume dual channel LVDS if pixel clock necessitates it drm/radeon: don't setup audio on asics that don't support it drm/radeon: disable semaphores for UVD V1 (v2)
-
git://anongit.freedesktop.org/drm-intelDave Airlie authored
misc i915 fixes. * tag 'drm-intel-fixes-2015-05-08' of git://anongit.freedesktop.org/drm-intel: drm/i915: Drop PIPE-A quirk for 945GSE HP Mini drm/i915: Sink rate read should be saved in deca-kHz drm/i915/dp: there is no audio on port A drm/i915: Add missing MacBook Pro models with dual channel LVDS drm/i915: Assume dual channel LVDS if pixel clock necessitates it
-
Mario Kleiner authored
Since commit 844b03f2 we make sure that after vblank irq off, we return the last valid (vblank count, vblank timestamp) pair to clients, e.g., during modesets, which is good. An overlooked side effect of that commit for kms drivers without support for precise vblank timestamping is that at vblank irq enable, when we update the vblank counter from the hw counter, we can't update the corresponding vblank timestamp, so now we have a totally mismatched timestamp for the new count to confuse clients. Restore old client visible behaviour from before Linux 3.17, but zero out the timestamp at vblank counter update (instead of disable as in original implementation) if we can't generate a meaningful timestamp immediately for the new vblank counter. This will fix this regression, so callers know they need to retry again later if they need a valid timestamp, but at the same time preserves the improvements made in the commit mentioned above. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: <stable@vger.kernel.org> #v3.17+ Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
-
git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "A set of ARM fixes: - fix an off-by-one error in the iommu DMA ops, which caused errors with a 4GiB size. - remove comments mentioning the non-existent CONFIG_CPU_ARM1020_CPU_IDLE macro. - remove useless CONFIG_CPU_ICACHE_STREAMING_DISABLE blocks, where this symbol never appeared in any Kconfig. - fix Feroceon code to cope with a previous change correctly (it incorrectly left an additional word in an assembly structure definition) - avoid a misleading IRQ affinity warning in the ARM PMU code for IRQs which are already affine to their CPUs. - fix the node name printed in the IRQ affinity warning" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8352/1: perf: Fix the pmu node name in warning message ARM: 8351/1: perf: don't warn about missing interrupt-affinity property for PPIs ARM: 8350/1: proc-feroceon: Fix feroceon_proc_info macro ARM: 8349/1: arch/arm/mm/proc-arm925.S: remove dead #ifdef block ARM: 8348/1: remove comments on CPU_ARM1020_CPU_IDLE ARM: 8347/1: dma-mapping: fix off-by-one check in arm_setup_iommu_dma_ops
-
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsungLinus Torvalds authored
Pull samsung fixes from Kukjin Kim: "Here is Samsung fixes for v4.1. Since I've missed to send this via arm-soc tree before v4.1-rc3, so I'm sending this to you directly - fix commit ea08de16 ("ARM: dts: Add DISP1 power domain for exynos5420") which causes 'unhandled fault: imprecise external abort' error when PD turned off. ("make DP a consumer of DISP1 power domain") - fix 's3c-rtc' probe failure on Odriod-X2/U2/U3 boards ("add 'rtc_src' clock to rtc node for source clock of rtc") - fix typo for 'cpu-crit-0' trip point on exynos5420/5440 - fix S2R failure on exynos5250-snow due to card power of Marvell WiFi driver (suspend/resume) ("add keep-power-in-susped to WiFi SDIO node")" * tag 'samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for exynos5250-snow ARM: dts: Fix typo in trip point temperature for exynos5420/5440 ARM: dts: add 'rtc_src' clock to rtc node for exynos4412-odroid boards ARM: dts: Make DP a consumer of DISP1 power domain on Exynos5420
-
- 09 May, 2015 15 commits
-
-
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Arnd Bergmann: "A few patches have come up since the merge window. The largest one is a rewrite of the PXA lubbock/mainstone IRQ handling. This was already broken in 2011 by a change to the GPIO code and only noticed now. The other changes contained here are: MAINTAINERS file updates: - Ray Jui and Scott Branden are now co-maintainers for some of the mach-bcm chips, while Christian Daudt and Marc Carino have stepped down. - Andrew Victor is no longer maintaining at91. Instead, Alexandre Belloni now becomes an official maintainer, after having done a bulk of the work for a while. - Baruch Siach, who added the mach-digicolor platform in 4.1 is now listed as maintainer - The git URL for mach-socfpga has changed Bug fixes: - Three bug fixes for new rockchip rk3288 code - A regression fix to make SD card support work on certain ux500 boards - multiple smaller dts fixes for imx, omap, mvebu, and shmobile - a regression fiix for omap3 power consumption - a fix for regression in the ARM CCI bus driver Configuration changes: - more imx platforms are now enabled in multi_v7_defconfig" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) MAINTAINERS: add Conexant Digicolor machines entry MAINTAINERS: socfpga: update the git repo for SoCFPGA ARM: multi_v7_defconfig: Select more FSL SoCs MAINTAINERS: replace an AT91 maintainer drivers: CCI: fix used_mask init in validate_group() bus: omap_l3_noc: Fix master id address decoding for OMAP5 bus: omap_l3_noc: Fix offset for DRA7 CLK1_HOST_CLK1_2 instance ARM: dts: dra7: Fix efuse register size for ABB ARM: dts: am57xx-beagle-x15: Switch GPIO fan number ARM: dts: am57xx-beagle-x15: Switch UART mux pins ARM: dts: am437x-sk: reduce col-scan-delay-us ARM: dts: am437x-sk: fix for new newhaven display module revision ARM: dts: am57xx-beagle-x15: Fix RTC aliases ARM: dts: am57xx-beagle-x15: Fix IRQ type for mcp7941x ARM: dts: omap3: Add #iommu-cells to isp and iva iommu ARM: omap2plus_defconfig: Enable EXTCON_USB_GPIO ARM: dts: OMAP3-N900: Add microphone bias voltages ARM: OMAP2+: Fix omap off idle power consumption creeping up MAINTAINERS: Update brcmstb entry MAINTAINERS: Remove Christian Daudt for mach-bcm ...
-
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespaceLinus Torvalds authored
Pull user-namespace fix from Eric Biederman: "Eric Windish recently reported a really bug that allows mounting fresh copies of proc and sysfs when it really should not be allowed. The code attempted to verify that proc and sysfs were fully visible but there is a test missing to ensure that the root of the filesystem is visible. Doh! The following patch fixes that. This fixes a containment issue that the docker folks are seeing" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: mnt: Fix fs_fully_visible to verify the root directory is visible
-
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq updates from Thomas Gleixner: "Two patches from the irq departement: - a simple fix to make dummy_irq_chip usable for wakeup scenarios - removal of the gic arch_extn hackery. Now that all users are converted we really want to get rid of the interface so people wont come up with new use cases" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: gic: Drop support for gic_arch_extn genirq: Set IRQCHIP_SKIP_SET_WAKE flag for dummy_irq_chip
-
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fix from Thomas Gleixner: "A simple fix to actually shut down a detached device instead of keeping it active" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clockevents: Shutdown detached clockevent device
-
Rusty Russell authored
We cast away the volatile, but really, why make it volatile at all? We already do a mb() inside the cpumask_empty() loop. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-
Eric W. Biederman authored
This fixes a dumb bug in fs_fully_visible that allows proc or sys to be mounted if there is a bind mount of part of /proc/ or /sys/ visible. Cc: stable@vger.kernel.org Reported-by: Eric Windisch <ewindisch@docker.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
-
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fixes from Al Viro: "A couple of fixes for bugs caught while digging in fs/namei.c. The first one is this cycle regression, the second is 3.11 and later" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: path_openat(): fix double fput() namei: d_is_negative() should be checked before ->d_seq validation
-
Al Viro authored
path_openat() jumps to the wrong place after do_tmpfile() - it has already done path_cleanup() (as part of path_lookupat() called by do_tmpfile()), so doing that again can lead to double fput(). Cc: stable@vger.kernel.org # v3.11+ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-
Al Viro authored
Fetching ->d_inode, verifying ->d_seq and finding d_is_negative() to be true does *not* mean that inode we'd fetched had been NULL - that holds only while ->d_seq is still unchanged. Shift d_is_negative() checks into lookup_fast() prior to ->d_seq verification. Reported-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fix from Chris Mason: "When an arm user reported crashes near page_address(page) in my new code, it became clear that I can't be trusted with GFP masks. Filipe beat me to the patch, and I'll just be in the corner with my dunce cap on" * 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix wrong mapping flags for free space inode
-
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull device mapper fixes from Mike Snitzer: "Two additional fixes for changes introduced via DM during the 4.1 merge window. The first reverts a dm-crypt change that wasn't correct. The second fixes a device format regression that impacted userspace" * tag 'dm-4.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: init: fix regression by supporting devices with major:minor:offset format Revert "dm crypt: fix deadlock when async crypto algorithm returns -EBUSY"
-
git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "A collection of fixes since the merge window; - fix for a double elevator module release, from Chao Yu. Ancient bug. - the splice() MORE flag fix from Christophe Leroy. - a fix for NVMe, fixing a patch that went in in the merge window. From Keith. - two fixes for blk-mq CPU hotplug handling, from Ming Lei. - bdi vs blockdev lifetime fix from Neil Brown, fixing and oops in md. - two blk-mq fixes from Shaohua, fixing a race on queue stop and a bad merge issue with FUA writes. - division-by-zero fix for writeback from Tejun. - a block bounce page accounting fix, making sure we inc/dec after bouncing so that pre/post IO pages match up. From Wang YanQing" * 'for-linus' of git://git.kernel.dk/linux-block: splice: sendfile() at once fails for big files blk-mq: don't lose requests if a stopped queue restarts blk-mq: fix FUA request hang block: destroy bdi before blockdev is unregistered. block:bounce: fix call inc_|dec_zone_page_state on different pages confuse value of NR_BOUNCE elevator: fix double release of elevator module writeback: use |1 instead of +1 to protect against div by zero blk-mq: fix CPU hotplug handling blk-mq: fix race between timeout and CPU hotplug NVMe: Fix VPD B0 max sectors translation
-
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds authored
Pull GPIO fixes from Linus Walleij: "Here is a bunch of GPIO fixes that I collected since -rc1, nothing controversial, nothing special: - fix a memory leak for GPIO hotplug. - fix a signedness bug in the ACPI GPIO pin validation. - driver fixes: Qualcomm SPMI and OMAP MPUIO IRQ issues" * tag 'gpio-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: omap: Fix regression for MPUIO interrupts gpio: sysfs: fix memory leaks and device hotplug pinctrl: qcom-spmi-gpio: Fix input value report pinctrl: qcom-spmi-gpio: Fix output type configuration gpiolib: change gpio pin from unsigned to signed in acpi callback
-
git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds authored
Pull MMC fixes from Ulf Hansson: "MMC core: - Don't access RPMB partitions for normal read/write - Fix hibernation restore sequence MMC host: - dw_mmc: Fix card detection for non removable cards - dw_mmc: Fix sglist issue in 32-bit mode - sh_mmcif: Fix timeout value for command request" * tag 'mmc-4.1-rc2' of git://git.linaro.org/people/ulf.hansson/mmc: mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLE mmc: dw_mmc: init desc in dw_mci_idmac_init mmc: card: Don't access RPMB partitions for normal read/write mmc: sh_mmcif: Fix timeout value for command request mmc: core: add missing pm event in mmc_pm_notify to fix hib restore
-
Linus Torvalds authored
Merge tag 'trace-fixes-v4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "The newly added ftrace_print_array_seq() function had a bug in it. Luckily, the only user of it didn't make the 4.1 merge window. But the helper function should be fixed before 4.2 when the users start coming in" * tag 'trace-fixes-v4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Make ftrace_print_array_seq compute buf_len
-