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[Linux-stable-mirror] v4.9.61 build: 0 failures 0 warnings (v4.9.61)

by Build bot for Mark Brown

Tree/Branch: v4.9.61 Git describe: v4.9.61 Commit: 5caae9d141 Linux 4.9.61 Build Time: 82 min 53 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years

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[Linux-stable-mirror] [PATCH AUTOSEL for-3.18 01/27] extcon: palmas: Check the parent instance to prevent the NULL

by Levin, Alexander (Sasha Levin)

From: Roger Quadros <rogerq(a)ti.com> [ Upstream commit 9fe172b9be532acc23e35ba693700383ab775e66 ] extcon-palmas must be child of palmas and expects parent's drvdata to be valid. Check for non NULL parent drvdata and fail if it is NULL. Not doing so will result in a NULL pointer dereference later in the probe() parent drvdata is NULL (e.g. misplaced extcon-palmas node in device tree). Signed-off-by: Roger Quadros <rogerq(a)ti.com> Signed-off-by: Chanwoo Choi <cw00.choi(a)samsung.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> --- drivers/extcon/extcon-palmas.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c index 230e1220ce48..1cee9f4909db 100644 --- a/drivers/extcon/extcon-palmas.c +++ b/drivers/extcon/extcon-palmas.c @@ -150,6 +150,11 @@ static int palmas_usb_probe(struct platform_device *pdev) struct palmas_usb *palmas_usb; int status; + if (!palmas) { + dev_err(&pdev->dev, "failed to get valid parent\n"); + return -EINVAL; + } + palmas_usb = devm_kzalloc(&pdev->dev, sizeof(*palmas_usb), GFP_KERNEL); if (!palmas_usb) return -ENOMEM; -- 2.11.0

7 years

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[Linux-stable-mirror] [PATCH AUTOSEL for-4.9 01/53] extcon: Remove potential problem when calling extcon_register_notifier()

by Levin, Alexander (Sasha Levin)

From: Chanwoo Choi <cw00.choi(a)samsung.com> [ Upstream commit 01b4c9a1ae07a25d208cad0da7dd288007a22984 ] This patch removes the potential problem of extcon_register_notifier() when edev parameter is NULL. When edev is NULL, this function returns the first extcon device which includes the sepecific external connector of second paramter. But, it don't guarantee the same operation in all cases. To remove this confusion and potential problem, this patch fixes it. Signed-off-by: Chanwoo Choi <cw00.choi(a)samsung.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> --- drivers/extcon/extcon.c | 33 +++++++-------------------------- 1 file changed, 7 insertions(+), 26 deletions(-) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 7c1e3a7b14e0..d0e367959c91 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -906,35 +906,16 @@ int extcon_register_notifier(struct extcon_dev *edev, unsigned int id, unsigned long flags; int ret, idx = -EINVAL; - if (!nb) + if (!edev || !nb) return -EINVAL; - if (edev) { - idx = find_cable_index_by_id(edev, id); - if (idx < 0) - return idx; - - spin_lock_irqsave(&edev->lock, flags); - ret = raw_notifier_chain_register(&edev->nh[idx], nb); - spin_unlock_irqrestore(&edev->lock, flags); - } else { - struct extcon_dev *extd; - - mutex_lock(&extcon_dev_list_lock); - list_for_each_entry(extd, &extcon_dev_list, entry) { - idx = find_cable_index_by_id(extd, id); - if (idx >= 0) - break; - } - mutex_unlock(&extcon_dev_list_lock); + idx = find_cable_index_by_id(edev, id); + if (idx < 0) + return idx; - if (idx >= 0) { - edev = extd; - return extcon_register_notifier(extd, id, nb); - } else { - ret = -ENODEV; - } - } + spin_lock_irqsave(&edev->lock, flags); + ret = raw_notifier_chain_register(&edev->nh[idx], nb); + spin_unlock_irqrestore(&edev->lock, flags); return ret; } -- 2.11.0

7 years

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Re: [Linux-stable-mirror] [PATCH v2] lib/mpi: call cond_resched() from mpi_powm() loop

by David Howells

Eric Biggers <ebiggers3(a)gmail.com> wrote: > On a non-preemptible kernel, if KEYCTL_DH_COMPUTE is called with the > largest permitted inputs (16384 bits), the kernel spends 10+ seconds > doing modular exponentiation in mpi_powm() without rescheduling. If all > threads do it, it locks up the system. Moreover, it can cause > rcu_sched-stall warnings. Do you want this to go in immediately, or I should I push it to James for the next merge window? David

7 years

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Re: [Linux-stable-mirror] [PATCH] drm/edid: Don't send non-zero YQ in AVI infoframe for HDMI 1.x sinks

by Ville Syrjälä

On Wed, Nov 08, 2017 at 12:17:28PM -0800, Eric Anholt wrote: > Ville Syrjala <ville.syrjala(a)linux.intel.com> writes: > > > From: Ville Syrjälä <ville.syrjala(a)linux.intel.com> > > > > Apparently some sinks look at the YQ bits even when receiving RGB, > > and they get somehow confused when they see a non-zero YQ value. > > So we can't just blindly follow CEA-861-F and set YQ to match the > > RGB range. > > > > Unfortunately there is no good way to tell whether the sink > > designer claims to have read CEA-861-F. The CEA extension block > > revision number has generally been stuck at 3 since forever, > > and even a very recently manufactured sink might be based on > > an old design so the manufacturing date doesn't seem like > > something we can use. In lieu of better information let's > > follow CEA-861-F only for HDMI 2.0 sinks, since HDMI 2.0 is > > based on CEA-861-F. For HDMI 1.x sinks we'll always set YQ=0. > > > > The alternative would of course be to always set YQ=0. And if > > we ever encounter a HDMI 2.0+ sink with this bug that's what > > we'll probably have to do. > > Should vc4 be doing anything special for HDMI2 sinks, if it's an HDMI1.4 > source? As long as you stick to < 340 MHz modes you shouldn't have to do anything. For >=340 MHz you'd need to use some new HDMI 2.0 features. Looks like vc4 crtc .mode_valid() doesn't do much. I presume it's up to bridges/encoders to filter out most things that aren't supported? > > That said, as far as vc4, this patch is > > Acked-by: Eric Anholt <eric(a)anholt.net> Ta. -- Ville Syrjälä Intel OTC

7 years

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[Linux-stable-mirror] v4.4.97 build: 0 failures 0 warnings (v4.4.97)

by Build bot for Mark Brown

Tree/Branch: v4.4.97 Git describe: v4.4.97 Commit: c54d0707aa Linux 4.4.97 Build Time: 71 min 11 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years

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[Linux-stable-mirror] [PATCH 1/3] ASoC: sun8i-codec: Invert Master / Slave condition

by Maxime Ripard

The current code had the condition backward when checking if the codec should be running in slave or master mode. Fix it, and make the comment a bit more readable. Fixes: 36c684936fae ("ASoC: Add sun8i digital audio codec") Cc: <stable(a)vger.kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard(a)free-electrons.com> --- sound/soc/sunxi/sun8i-codec.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index abfb710df7cb..038107baf414 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -170,11 +170,11 @@ static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) /* clock masters */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBS_CFS: /* DAI Slave */ - value = 0x0; /* Codec Master */ + case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */ + value = 0x1; break; - case SND_SOC_DAIFMT_CBM_CFM: /* DAI Master */ - value = 0x1; /* Codec Slave */ + case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */ + value = 0x0; break; default: return -EINVAL; -- 2.14.3

7 years

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[Linux-stable-mirror] [PATCH v2] drm/i915: Move init_clock_gating() back to where it was

by Ville Syrjala

From: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Apparently setting up a bunch of GT registers before we've properly initialized the rest of the GT hardware leads to these setting being lost. So looks like I broke HSW with commit b7048ea12fbb ("drm/i915: Do .init_clock_gating() earlier to avoid it clobbering watermarks") by doing init_clock_gating() too early. This should actually affect other platforms as well, but apparently not to such a great degree. What I was ultimately after in that commit was to move the ilk_init_lp_watermarks() call earlier. So let's undo the damage and move init_clock_gating() back to where it was, and call ilk_init_lp_watermarks() just before the watermark state readout. This highlights how fragile and messed up our init order really is. I wonder why we even initialize the display before gem. The opposite order would make much more sense to me... v2: Keep WaRsPkgCStateDisplayPMReq:hsw early as it really must be done before all planes might get disabled. Cc: stable(a)vger.kernel.org Cc: Chris Wilson <chris(a)chris-wilson.co.uk> Cc: Mark Janes <mark.a.janes(a)intel.com> Cc: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Cc: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Joonas Lahtinen <joonas.lahtinen(a)linux.intel.com> Cc: Oscar Mateo <oscar.mateo(a)intel.com> Cc: Mika Kuoppala <mika.kuoppala(a)linux.intel.com> Reported-by: Mark Janes <mark.a.janes(a)intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103549 Fixes: b7048ea12fbb ("drm/i915: Do .init_clock_gating() earlier to avoid it clobbering watermarks") References: https://lists.freedesktop.org/archives/intel-gfx/2017-November/145432.html Signed-off-by: Ville Syrjälä <ville.syrjala(a)linux.intel.com> --- drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++-- drivers/gpu/drm/i915/intel_pm.c | 44 +++++++++++++++--------------------- 2 files changed, 30 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 737de251d0f8..8174392acc18 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3676,6 +3676,7 @@ void intel_finish_reset(struct drm_i915_private *dev_priv) intel_pps_unlock_regs_wa(dev_priv); intel_modeset_init_hw(dev); + intel_init_clock_gating(dev_priv); spin_lock_irq(&dev_priv->irq_lock); if (dev_priv->display.hpd_irq_setup) @@ -14365,8 +14366,6 @@ void intel_modeset_init_hw(struct drm_device *dev) intel_update_cdclk(dev_priv); intel_dump_cdclk_state(&dev_priv->cdclk.hw, "Current CDCLK"); dev_priv->cdclk.logical = dev_priv->cdclk.actual = dev_priv->cdclk.hw; - - intel_init_clock_gating(dev_priv); } /* @@ -15079,6 +15078,15 @@ intel_modeset_setup_hw_state(struct drm_device *dev, struct intel_encoder *encoder; int i; + if (IS_HASWELL(dev_priv)) { + /* + * WaRsPkgCStateDisplayPMReq:hsw + * System hang if this isn't done before disabling all planes! + */ + I915_WRITE(CHICKEN_PAR1_1, + I915_READ(CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); + } + intel_modeset_readout_hw_state(dev); /* HW state is read out, now we need to sanitize this mess. */ @@ -15176,6 +15184,8 @@ void intel_modeset_gem_init(struct drm_device *dev) intel_init_gt_powersave(dev_priv); + intel_init_clock_gating(dev_priv); + intel_setup_overlay(dev_priv); } diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 07118c0b69d3..b712ee30a06c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5754,12 +5754,30 @@ void vlv_wm_sanitize(struct drm_i915_private *dev_priv) mutex_unlock(&dev_priv->wm.wm_mutex); } +/* + * FIXME should probably kill this and improve + * the real watermark readout/sanitation instead + */ +static void ilk_init_lp_watermarks(struct drm_i915_private *dev_priv) +{ + I915_WRITE(WM3_LP_ILK, I915_READ(WM3_LP_ILK) & ~WM1_LP_SR_EN); + I915_WRITE(WM2_LP_ILK, I915_READ(WM2_LP_ILK) & ~WM1_LP_SR_EN); + I915_WRITE(WM1_LP_ILK, I915_READ(WM1_LP_ILK) & ~WM1_LP_SR_EN); + + /* + * Don't touch WM1S_LP_EN here. + * Doing so could cause underruns. + */ +} + void ilk_wm_get_hw_state(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); struct ilk_wm_values *hw = &dev_priv->wm.hw; struct drm_crtc *crtc; + ilk_init_lp_watermarks(dev_priv); + for_each_crtc(dev, crtc) ilk_pipe_wm_get_hw_state(crtc); @@ -8213,18 +8231,6 @@ static void g4x_disable_trickle_feed(struct drm_i915_private *dev_priv) } } -static void ilk_init_lp_watermarks(struct drm_i915_private *dev_priv) -{ - I915_WRITE(WM3_LP_ILK, I915_READ(WM3_LP_ILK) & ~WM1_LP_SR_EN); - I915_WRITE(WM2_LP_ILK, I915_READ(WM2_LP_ILK) & ~WM1_LP_SR_EN); - I915_WRITE(WM1_LP_ILK, I915_READ(WM1_LP_ILK) & ~WM1_LP_SR_EN); - - /* - * Don't touch WM1S_LP_EN here. - * Doing so could cause underruns. - */ -} - static void ilk_init_clock_gating(struct drm_i915_private *dev_priv) { uint32_t dspclk_gate = ILK_VRHUNIT_CLOCK_GATE_DISABLE; @@ -8258,8 +8264,6 @@ static void ilk_init_clock_gating(struct drm_i915_private *dev_priv) (I915_READ(DISP_ARB_CTL) | DISP_FBC_WM_DIS)); - ilk_init_lp_watermarks(dev_priv); - /* * Based on the document from hardware guys the following bits * should be set unconditionally in order to enable FBC. @@ -8372,8 +8376,6 @@ static void gen6_init_clock_gating(struct drm_i915_private *dev_priv) I915_WRITE(GEN6_GT_MODE, _MASKED_FIELD(GEN6_WIZ_HASHING_MASK, GEN6_WIZ_HASHING_16x4)); - ilk_init_lp_watermarks(dev_priv); - I915_WRITE(CACHE_MODE_0, _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB)); @@ -8600,8 +8602,6 @@ static void bdw_init_clock_gating(struct drm_i915_private *dev_priv) I915_GTT_PAGE_SIZE_2M); enum pipe pipe; - ilk_init_lp_watermarks(dev_priv); - /* WaSwitchSolVfFArbitrationPriority:bdw */ I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL); @@ -8652,8 +8652,6 @@ static void bdw_init_clock_gating(struct drm_i915_private *dev_priv) static void hsw_init_clock_gating(struct drm_i915_private *dev_priv) { - ilk_init_lp_watermarks(dev_priv); - /* L3 caching of data atomics doesn't work -- disable it. */ I915_WRITE(HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE); I915_WRITE(HSW_ROW_CHICKEN3, @@ -8697,10 +8695,6 @@ static void hsw_init_clock_gating(struct drm_i915_private *dev_priv) /* WaSwitchSolVfFArbitrationPriority:hsw */ I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL); - /* WaRsPkgCStateDisplayPMReq:hsw */ - I915_WRITE(CHICKEN_PAR1_1, - I915_READ(CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); - lpt_init_clock_gating(dev_priv); } @@ -8708,8 +8702,6 @@ static void ivb_init_clock_gating(struct drm_i915_private *dev_priv) { uint32_t snpcr; - ilk_init_lp_watermarks(dev_priv); - I915_WRITE(ILK_DSPCLK_GATE_D, ILK_VRHUNIT_CLOCK_GATE_DISABLE); /* WaDisableEarlyCull:ivb */ -- 2.13.6

7 years

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[Linux-stable-mirror] [PATCH 2/3] ASoC: sun8i-codec: Set the BCLK divider

by Maxime Ripard

While the current code was reporting to be able to work in master mode, it failed to do so because the BCLK divider wasn't programmed, meaning that the BCLK would run at the PLL's frequency no matter the sample rate. It was obviously a bit too fast. Add support to retrieve the divider to use, and set it. Since our PLL is not always able to generate a perfect multiple of the sample rate, we'll have to choose the closest divider that matches our setup. Fixes: 36c684936fae ("ASoC: Add sun8i digital audio codec") Cc: <stable(a)vger.kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard(a)free-electrons.com> --- sound/soc/sunxi/sun8i-codec.c | 53 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index 038107baf414..522546e6b153 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -73,6 +73,7 @@ #define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8) #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4) #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6) +#define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9) struct sun8i_codec { struct device *dev; @@ -226,12 +227,57 @@ static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return 0; } +struct sun8i_codec_clk_div { + u8 div; + u8 val; +}; + +static const struct sun8i_codec_clk_div sun8i_codec_bclk_div[] = { + { .div = 1, .val = 0 }, + { .div = 2, .val = 1 }, + { .div = 4, .val = 2 }, + { .div = 6, .val = 3 }, + { .div = 8, .val = 4 }, + { .div = 12, .val = 5 }, + { .div = 16, .val = 6 }, + { .div = 24, .val = 7 }, + { .div = 32, .val = 8 }, + { .div = 48, .val = 9 }, + { .div = 64, .val = 10 }, + { .div = 96, .val = 11 }, + { .div = 128, .val = 12 }, + { .div = 192, .val = 13 }, +}; + +static u8 sun8i_codec_get_bclk_div(struct sun8i_codec *scodec, + unsigned int rate, + unsigned int word_size) +{ + unsigned long clk_rate = clk_get_rate(scodec->clk_module); + unsigned int div = clk_rate / rate / word_size / 2; + unsigned int best_val = 0, best_diff = ~0; + int i; + + for (i = 0; i < ARRAY_SIZE(sun8i_codec_bclk_div); i++) { + const struct sun8i_codec_clk_div *bdiv = &sun8i_codec_bclk_div[i]; + unsigned int diff = abs(bdiv->div - div); + + if (diff < best_diff) { + best_diff = diff; + best_val = bdiv->val; + } + } + + return best_val; +} + static int sun8i_codec_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct sun8i_codec *scodec = snd_soc_codec_get_drvdata(dai->codec); int sample_rate; + u8 bclk_div; /* * The CPU DAI handles only a sample of 16 bits. Configure the @@ -241,6 +287,13 @@ static int sun8i_codec_hw_params(struct snd_pcm_substream *substream, SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK, SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16); + bclk_div = sun8i_codec_get_bclk_div(scodec, params_rate(params), + params_width(params)); + + regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, + SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK, + bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV); + regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK, SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16); -- 2.14.3

7 years

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[Linux-stable-mirror] v4.13.12 build: 0 failures 0 warnings (v4.13.12)

by Build bot for Mark Brown

Tree/Branch: v4.13.12 Git describe: v4.13.12 Commit: 0da74753f7 Linux 4.13.12 Build Time: 92 min 4 sec Passed: 10 / 10 (100.00 %) Failed: 0 / 10 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years

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