Commit Graph

935571 Commits

Author SHA1 Message Date
Linus Torvalds
d45f47a468 Merge tag 'mmc-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:

 - Override DLL_CONFIG only with valid values in sdhci-msm

 - Get rid of of_match_ptr() macro to fix warning in owl-mmc

 - Limit segments to 1 to fix meson-gx G12A/G12B SoCs

* tag 'mmc-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied
  mmc: owl-mmc: Get rid of of_match_ptr() macro
  mmc: meson-gx: limit segments to 1 when dram-access-quirk is needed
2020-07-10 08:28:49 -07:00
Jens Axboe
309fc03a32 io_uring: account user memory freed when exit has been queued
We currently account the memory after the exit work has been run, but
that leaves a gap where a process has closed its ring and until the
memory has been accounted as freed. If the memlocked ulimit is
borderline, then that can introduce spurious setup errors returning
-ENOMEM because the free work hasn't been run yet.

Account this as freed when we close the ring, as not to expose a tiny
gap where setting up a new ring can fail.

Fixes: 85faa7b834 ("io_uring: punt final io_ring_ctx wait-and-free to workqueue")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-10 09:18:35 -06:00
Mark Brown
1c62ec5f1a Merge series "ASoC: mediatek: mt8183: support DP audio" from Tzung-Bi Shih <tzungbi@google.com>:
This series is a follow up for a long time ago series
(https://patchwork.kernel.org/cover/11204303/).

The old series bound too much on the patches of DRM bridge and ASoC
machine driver.  And unluckily, the dependencies
(https://lore.kernel.org/patchwork/patch/1126819/) have not applied.

Revewing the ASoC patches in the old series, I found that they could be
decoupled from the DRM bridge patches.  And they are harmless as it is
an optional attribute ("hdmi-codec") in DTS.

This series arranges and rebases the harmless ASoC patches for
mt8183-mt6358-ts3a227-max98357 and mt8183-da7219-max98357.

The 1st and 4th patch add an optional DT property.  The 1st patch was
acked long time ago (https://patchwork.kernel.org/patch/11204321/).

The 2nd and 5th patch add DAI link for using hdmi-codec.

The 3rd and 6th patch support the HDMI jack reporting.

Tzung-Bi Shih (6):
  ASoC: dt-bindings: mt8183: add a property "mediatek,hdmi-codec"
  ASoC: mediatek: mt8183: use hdmi-codec
  ASoC: mediatek: mt8183: support HDMI jack reporting
  ASoC: dt-bindings: mt8183-da7219: add a property "mediatek,hdmi-codec"
  ASoC: mediatek: mt8183-da7219: use hdmi-codec
  ASoC: mediatek: mt8183-da7219: support HDMI jack reporting

 .../bindings/sound/mt8183-da7219-max98357.txt |  4 +++
 .../sound/mt8183-mt6358-ts3a227-max98357.txt  |  2 ++
 sound/soc/mediatek/Kconfig                    |  2 ++
 .../mediatek/mt8183/mt8183-da7219-max98357.c  | 29 +++++++++++++++++--
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c   | 29 +++++++++++++++++--
 5 files changed, 60 insertions(+), 6 deletions(-)

--
2.27.0.383.g050319c2ae-goog
2020-07-10 16:06:46 +01:00
Mark Brown
3689eb0bbd Merge series "ASoC: Clean-up W=1 build warnings​ - part2" from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
Both Lee Jones and I submitted separate series, this is the second
part of the merged result, for which no feedback was provided.

I picked Lee's patches for rt5659 and ak4458 and added the pxa and
ux500 that I didn't fix. The rest is largely identical between our
respective series, with the exception of the sunxi which I documented
and Lee removed. I don't have any specific preference and will go with
the flow on this.

Changes since v3:
Improved commit subjects from 'fix kernel-doc' as suggested by Lee
Jones. In a couple of cases I just reverted to Lee's patches when the
code was identical.
Added a couple of CC: tags from Lee's patches.
Added Arnaud Pouliquen's Acked-by tag in first patch.

Lee Jones (6):
  ASoC: sunxi: sun4i-spdif: Fix misspelling of 'reg_dac_txdata' in
    kernel-doc
  ASoC: pxa: pxa-ssp: Demote seemingly unintentional kerneldoc header
  ASoC: ux500: ux500_msp_i2s: Remove unused variables 'reg_val_DR' and
    'reg_val_TSTDR'
  ASoC: codecs: rt5659: Remove many unused const variables
  ASoC: codecs: tlv320aic26: Demote seemingly unintentional kerneldoc
    header
  ASoC: codecs: ak4458: Remove set but never checked variable 'ret'

Pierre-Louis Bossart (4):
  ASoC: sti: uniperif: fix 'defined by not used' warning
  ASoC: qcom: qdsp6: q6asm: Provide documentation for 'codec_profile'
  ASoC: sunxi: sun4i-i2s: add missing clock and format arguments in
    kernel-doc
  ASoC: codecs: rt5631: fix spurious kernel-doc start and missing
    arguments

 sound/soc/codecs/ak4458.c       |  6 +++---
 sound/soc/codecs/rt5631.c       |  8 +++++--
 sound/soc/codecs/rt5659.c       | 37 ---------------------------------
 sound/soc/codecs/tlv320aic26.c  |  2 +-
 sound/soc/pxa/pxa-ssp.c         |  2 +-
 sound/soc/qcom/qdsp6/q6asm.c    |  2 +-
 sound/soc/sti/uniperif.h        |  2 +-
 sound/soc/sunxi/sun4i-i2s.c     | 10 ++++++++-
 sound/soc/sunxi/sun4i-spdif.c   |  2 +-
 sound/soc/ux500/ux500_msp_i2s.c |  8 +++----
 10 files changed, 27 insertions(+), 52 deletions(-)

base-commit: 6940701c71
--
2.25.1
2020-07-10 16:06:45 +01:00
Mark Brown
93ba7c8d79 Merge series "ASoC: fsl_spdif: Clear the validity bit for TX" from Shengjiu Wang <shengjiu.wang@nxp.com>:
Clear the validity bit for TX
Add kctl for configuring TX validity bit

Shengjiu Wang (2):
  ASoC: fsl_spdif: Clear the validity bit for TX
  ASoC: fsl_spdif: Add kctl for configuring TX validity bit

 sound/soc/fsl/fsl_spdif.c | 51 ++++++++++++++++++++++++++++++++++++---
 1 file changed, 47 insertions(+), 4 deletions(-)

--
2.21.0
2020-07-10 16:06:44 +01:00
Hans de Goede
984b2cadd9 ASoC: Intel: cht_bsw_rt5672: Improve dai-set-fmt comment in cht_codec_fixup()
As Pierre-Louis Bossart pointed out, saying that the default mode for the
SSP is TDM 4 slot is not entirely accurate.

There really are 2 default modes:
The default mode for the SSP configuration is TDM 4 slot for the
cpu-dai (hard-coded in DSP firmware),
The default mode for the SSP configuration is I2S for the codec-dai
(hard-coded in the 'SSP2-Codec" .dai_fmt masks, so far unused).

This commit updates the comment in cht_codec_fixup() to properly reflect
this.

Suggested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200703103840.333732-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 16:06:43 +01:00
Tzung-Bi Shih
e25f8afd88 ASoC: mediatek: mt8183-da7219: support HDMI jack reporting
Supports HDMI jack reporting.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200710052505.3664118-7-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:57:55 +01:00
Tzung-Bi Shih
5bdbe97711 ASoC: mediatek: mt8183-da7219: use hdmi-codec
Adds DAI link to use hdmi-codec.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200710052505.3664118-6-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:57:54 +01:00
Tzung-Bi Shih
5653841d1e ASoC: dt-bindings: mt8183-da7219: add a property "mediatek, hdmi-codec"
Adds an optional property "mediatek,hdmi-codec".

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200710052505.3664118-5-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:57:53 +01:00
Tzung-Bi Shih
88abbf627a ASoC: mediatek: mt8183: support HDMI jack reporting
Supports HDMI jack reporting.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200710052505.3664118-4-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:57:52 +01:00
Tzung-Bi Shih
f2024dc55f ASoC: mediatek: mt8183: use hdmi-codec
Adds DAI link to use hdmi-codec.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200710052505.3664118-3-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:57:52 +01:00
Tzung-Bi Shih
cc07e14b14 ASoC: dt-bindings: mt8183: add a property "mediatek, hdmi-codec"
Adds an optional property "mediatek,hdmi-codec".

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200710052505.3664118-2-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:57:50 +01:00
Shengjiu Wang
aa3fce5cd4 ASoC: fsl_spdif: Add kctl for configuring TX validity bit
Add one kctl for configuring TX validity bit from user
space.

The type of this kctl is boolean:
on - Outgoing validity always set
off - Outgoing validity always clear

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1594112066-31297-3-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:29:49 +01:00
Shengjiu Wang
055b082156 ASoC: fsl_spdif: Clear the validity bit for TX
In IEC958 spec, "The validity bit is logical "0" if the
information in the main data field is reliable, and it
is logical "1" if it is not".

The default value of "ValCtrl" is zero, which means
"Outgoing Validity always set", then all the data is not
reliable, then some spdif sink device will drop the data.

So set "ValCtrl" to 1, that is to clear "Outgoing Validity"
in default.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1594112066-31297-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:29:48 +01:00
Takashi Iwai
68359a1ad8 ALSA: line6: Sync the pending work cancel at disconnection
Recently syzkaller reported a UAF in LINE6 driver, and it's likely
because we call cancel_delayed_work() at the disconnect callback
instead of cancel_delayed_work_sync().  Let's use the correct one
instead.

Reported-by: syzbot+145012a46658ac00fc9e@syzkaller.appspotmail.com
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/s5hlfjr4gio.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-10 16:29:38 +02:00
Takashi Iwai
6e8a914ad6 ALSA: line6: Perform sanity check for each URB creation
LINE6 drivers create stream URBs with a fixed pipe without checking
its validity, and this may lead to a kernel WARNING at the submission
when a malformed USB descriptor is passed.

For avoiding the kernel warning, perform the similar sanity checks for
each pipe type at creating a URB.

Reported-by: syzbot+c190f6858a04ea7fbc52@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/s5hv9iv4hq8.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-10 16:29:18 +02:00
Lee Jones
cc3cceedcb ASoC: codecs: ak4458: Remove set but never checked variable 'ret'
Looks as though the result of snd_soc_update_bits() has never been checked.

Fixes the following W=1 kernel build warning(s):

sound/soc/codecs/ak4458.c: In function ‘ak4458_set_dai_mute’:
sound/soc/codecs/ak4458.c:408:16: warning: variable ‘ret’ set but not
used [-Wunused-but-set-variable]

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>
Cc: Mihai Serban <mihai.serban@nxp.com>
Link: https://lore.kernel.org/r/20200709162328.259586-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:52 +01:00
Lee Jones
c90a67458e ASoC: codecs: tlv320aic26: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the sourcefile and no
descriptions are provided.

Fixes the following W=1 kernel build warning(s):

sound/soc/codecs/tlv320aic26.c:138: warning: Function parameter or
member 'dai' not described in 'aic26_mute'
sound/soc/codecs/tlv320aic26.c:138: warning: Function parameter or
member 'mute' not described in 'aic26_mute'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Link: https://lore.kernel.org/r/20200709162328.259586-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:51 +01:00
Lee Jones
e57f0e4d4a ASoC: codecs: rt5659: Remove many unused const variables
Looks as though they've never been used.

Fixes the following W=1 kernel build warning(s):

 In file included from  sound/soc/codecs/rt5659.c:25:
 In file included from sound/soc/codecs/rt5659.c:25:
 sound/soc/codecs/rt5659.c:1232:2: warning: ‘rt5659_ad_monor_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1232 | rt5659_ad_monor_asrc_enum, RT5659_ASRC_3, RT5659_AD_MONO_R_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1231:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1231 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 sound/soc/codecs/rt5659.c:1228:2: warning: ‘rt5659_ad_monol_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1228 | rt5659_ad_monol_asrc_enum, RT5659_ASRC_3, RT5659_AD_MONO_L_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1227:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1227 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 sound/soc/codecs/rt5659.c:1224:2: warning: ‘rt5659_ad_sto2_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1224 | rt5659_ad_sto2_asrc_enum, RT5659_ASRC_3, RT5659_AD_STO2_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1223:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1223 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 sound/soc/codecs/rt5659.c:1220:2: warning: ‘rt5659_ad_sto1_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1220 | rt5659_ad_sto1_asrc_enum, RT5659_ASRC_2, RT5659_AD_STO1_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1219:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1219 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 sound/soc/codecs/rt5659.c:1216:2: warning: ‘rt5659_da_monor_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1216 | rt5659_da_monor_asrc_enum, RT5659_ASRC_2, RT5659_DA_MONO_R_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1215:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1215 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 sound/soc/codecs/rt5659.c:1212:2: warning: ‘rt5659_da_monol_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1212 | rt5659_da_monol_asrc_enum, RT5659_ASRC_2, RT5659_DA_MONO_L_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1211:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1211 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 sound/soc/codecs/rt5659.c:1208:2: warning: ‘rt5659_da_sto_asrc_enum’ defined but not used [-Wunused-const-variable=]
 1208 | rt5659_da_sto_asrc_enum, RT5659_ASRC_2, RT5659_DA_STO_T_SFT, 0x7,
 | ^~~~~~~~~~~~~~~~~~~~~~~
 include/sound/soc.h:359:24: note: in definition of macro ‘SOC_VALUE_ENUM_DOUBLE_DECL’
 359 | const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, | ^~~~
 sound/soc/codecs/rt5659.c:1207:8: note: in expansion of macro ‘SOC_VALUE_ENUM_SINGLE_DECL’
 1207 | static SOC_VALUE_ENUM_SINGLE_DECL(
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Link: https://lore.kernel.org/r/20200709162328.259586-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:50 +01:00
Pierre-Louis Bossart
762a3d4313 ASoC: codecs: rt5631: fix spurious kernel-doc start and missing arguments
Fixes the following W=1 kernel build warning(s):

sound/soc/codecs/rt5631.c:72: warning: Function parameter or member
'component' not described in 'rt5631_write_index'
sound/soc/codecs/rt5631.c:72: warning: Function parameter or member
'reg' not described in 'rt5631_write_index'
sound/soc/codecs/rt5631.c:72: warning: Function parameter or member
'value' not described in 'rt5631_write_index'
sound/soc/codecs/rt5631.c:82: warning: Function parameter or member
'component' not described in 'rt5631_read_index'
sound/soc/codecs/rt5631.c:82: warning: Function parameter or member
'reg' not described in 'rt5631_read_index'
sound/soc/codecs/rt5631.c:367: warning: Function parameter or member
'component' not described in 'onebit_depop_power_stage'
sound/soc/codecs/rt5631.c:405: warning: Function parameter or member
'component' not described in 'onebit_depop_mute_stage'
sound/soc/codecs/rt5631.c:443: warning: Function parameter or member
'component' not described in 'depop_seq_power_stage'
sound/soc/codecs/rt5631.c:515: warning: Function parameter or member
 'component' not described in 'depop_seq_mute_stage'

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200709162328.259586-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:49 +01:00
Lee Jones
79b094c9dc ASoC: ux500: ux500_msp_i2s: Remove unused variables 'reg_val_DR' and 'reg_val_TSTDR'
Looks like these have been unchecked since the driver's inception in 2012.

Fixes the following W=1 kernel build warning(s):

sound/soc/ux500/ux500_msp_i2s.c: In function ‘flush_fifo_rx’:
sound/soc/ux500/ux500_msp_i2s.c:398:6: warning: variable ‘reg_val_DR’
set but not used [-Wunused-but-set-variable]
sound/soc/ux500/ux500_msp_i2s.c: In function ‘flush_fifo_tx’:
sound/soc/ux500/ux500_msp_i2s.c:415:6: warning: variable
‘reg_val_TSTDR’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: zhong jiang <zhongjiang@huawei.com>
Cc: Ola Lilja <ola.o.lilja@stericsson.com>
Cc: Roger Nilsson <roger.xr.nilsson@stericsson.com>
Cc: Sandeep Kaushik <sandeep.kaushik@st.com>
Link: https://lore.kernel.org/r/20200709162328.259586-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:48 +01:00
Lee Jones
701f4727f7 ASoC: pxa: pxa-ssp: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the sourcefile and full
descriptions are not provided.

Fixes the following W=1 kernel build warning(s):

sound/soc/pxa/pxa-ssp.c:186: warning: Function parameter or member
'ssp' not described in 'pxa_ssp_set_scr'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Link: https://lore.kernel.org/r/20200709162328.259586-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:48 +01:00
Lee Jones
c7202a19cf ASoC: sunxi: sun4i-spdif: Fix misspelling of 'reg_dac_txdata' in kernel-doc
Property name descriptions need to match exactly.

Fixes the following W=1 kernel build warning(s):

sound/soc/sunxi/sun4i-spdif.c:178: warning: Function parameter or
member 'reg_dac_txdata' not described in 'sun4i_spdif_quirks'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Andrea Venturi <be17068@iperbole.bo.it>
Cc: Marcus Cooper <codekipper@gmail.com>
Link: https://lore.kernel.org/r/20200709162328.259586-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:47 +01:00
Pierre-Louis Bossart
643e305e9b ASoC: sunxi: sun4i-i2s: add missing clock and format arguments in kernel-doc
Fix W=1 warnings - missing fields in description

sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or
 member 'bclk_dividers' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'num_bclk_dividers' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'mclk_dividers' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'num_mclk_dividers' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'get_bclk_parent_rate' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'get_sr' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'get_wss' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'set_chan_cfg' not described in 'sun4i_i2s_quirks'
sound/soc/sunxi/sun4i-i2s.c:160: warning: Function parameter or member
'set_fmt' not described in 'sun4i_i2s_quirks'

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Andrea Venturi <be17068@iperbole.bo.it>
Link: https://lore.kernel.org/r/20200709162328.259586-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:46 +01:00
Pierre-Louis Bossart
d463350421 ASoC: qcom: qdsp6: q6asm: Provide documentation for 'codec_profile'
Fixes the following W=1 kernel build warning(s):

sound/soc/qcom/qdsp6/q6asm.c:924: warning: Function parameter or
member 'codec_profile' not described in 'q6asm_open_write'

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Patrick Lai <plai@codeaurora.org>
Cc: Banajit Goswami <bgoswami@codeaurora.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200709162328.259586-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:45 +01:00
Pierre-Louis Bossart
97d73032a8 ASoC: sti: uniperif: fix 'defined by not used' warning
Fix W=1 warning. The table uni_tdm_hw is declared in a header included
by multiple C file. This isn't really a good practice but for now
using __maybe_unused makes the following warning go away.

sound/soc/sti/sti_uniperif.c:12:
sound/soc/sti/uniperif.h:1351:38: warning: ‘uni_tdm_hw’ defined but
not used [-Wunused-const-variable=]
 1351 | static const struct snd_pcm_hardware uni_tdm_hw = {
      |                                      ^~~~~~~~~~

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20200709162328.259586-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-10 15:13:44 +01:00
Yang Yingliang
667e57da35 io_uring: fix memleak in io_sqe_files_register()
I got a memleak report when doing some fuzz test:

BUG: memory leak
unreferenced object 0x607eeac06e78 (size 8):
  comm "test", pid 295, jiffies 4294735835 (age 31.745s)
  hex dump (first 8 bytes):
    00 00 00 00 00 00 00 00                          ........
  backtrace:
    [<00000000932632e6>] percpu_ref_init+0x2a/0x1b0
    [<0000000092ddb796>] __io_uring_register+0x111d/0x22a0
    [<00000000eadd6c77>] __x64_sys_io_uring_register+0x17b/0x480
    [<00000000591b89a6>] do_syscall_64+0x56/0xa0
    [<00000000864a281d>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Call percpu_ref_exit() on error path to avoid
refcount memleak.

Fixes: 05f3fb3c53 ("io_uring: avoid ring quiesce for fixed file set unregister and update")
Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-10 07:50:21 -06:00
Saravana Kannan
2451e74647 driver core: Avoid deferred probe due to fw_devlink_pause/resume()
With the earlier patch in this series, all devices that deferred probe
due to fw_devlink_pause() will have their probes delayed till the
deferred probe thread is kicked off during late_initcall. This will also
affect all their consumers.

This delayed probing in unnecessary. So this patch just keeps track of
the devices that had their probe deferred due to fw_devlink_pause() and
attempts to probe them once during fw_devlink_resume().

Fixes: 716a7a2596 ("driver core: fw_devlink: Add support for batching fwnode parsing")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200701194259.3337652-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:20:38 +02:00
Saravana Kannan
ec7bd78498 driver core: Rename dev_links_info.defer_sync to defer_hook
The defer_sync field is used as a hook to add the device to the
deferred_sync list. Rename it so that it's more meaningful for the next
patch that'll also use this field as a hook to a deferred_fw_devlink
list.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200701194259.3337652-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:20:38 +02:00
Saravana Kannan
cec72f3efc driver core: Don't do deferred probe in parallel with kernel_init thread
The current deferred probe implementation can mess up suspend/resume
ordering if deferred probe thread is kicked off in parallel with the
main initcall thread (kernel_init thread) [1].

For example:

Say device-B is a consumer of device-A.

Initcall thread					Deferred probe thread
===============					=====================
1. device-A is added.
2. device-B is added.
3. dpm_list is now [device-A, device-B].
4. driver-A defers probe of device-A.
						5. device-A is moved to
						   end of dpm_list
						6. dpm_list is now
						   [device-B, device-A]
7. driver-B is registereed and probes device-B.
8. dpm_list stays as [device-B, device-A].

The reverse order of dpm_list is used for suspend. So in this case
device-A would incorrectly get suspended before device-B.

Commit 716a7a2596 ("driver core: fw_devlink: Add support for batching
fwnode parsing") kicked off the deferred probe thread early during boot
to run in parallel with the initcall thread and caused suspend/resume
regressions.  This patch removes the parallel run of the deferred probe
thread to avoid the suspend/resume regressions.

[1] - https://lore.kernel.org/lkml/CAGETcx8W96KAw-d_siTX4qHB_-7ddk0miYRDQeHE6E0_8qx-6Q@mail.gmail.com/

Fixes: 716a7a2596 ("driver core: fw_devlink: Add support for batching fwnode parsing")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200701194259.3337652-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:20:38 +02:00
Alexander Lobakin
897c44f0ba virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial
rproc_serial_id_table lacks an exposure to module devicetable, so
when remoteproc firmware requests VIRTIO_ID_RPROC_SERIAL, no uevent
is generated and no module autoloading occurs.
Add missing MODULE_DEVICE_TABLE() annotation and move the existing
one for VIRTIO_ID_CONSOLE right to the table itself.

Fixes: 1b6370463e ("virtio_console: Add support for remoteproc serial")
Cc: <stable@vger.kernel.org> # v3.8+
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Reviewed-by: Amit Shah <amit@kernel.org>
Link: https://lore.kernel.org/r/x7C_CbeJtoGMy258nwAXASYz3xgFMFpyzmUvOyZzRnQrgWCREBjaqBOpAUS7ol4NnZYvSVwmTsCG0Ohyfvta-ygw6HMHcoeKK0C3QFiAO_Q=@pm.me
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:12:48 +02:00
Alexander Shishkin
e78e1fdb28 intel_th: Fix a NULL dereference when hub driver is not loaded
Connecting master to an output port when GTH driver module is not loaded
triggers a NULL dereference:

> RIP: 0010:intel_th_set_output+0x35/0x70 [intel_th]
> Call Trace:
>  ? sth_stm_link+0x12/0x20 [intel_th_sth]
>  stm_source_link_store+0x164/0x270 [stm_core]
>  dev_attr_store+0x17/0x30
>  sysfs_kf_write+0x3e/0x50
>  kernfs_fop_write+0xda/0x1b0
>  __vfs_write+0x1b/0x40
>  vfs_write+0xb9/0x1a0
>  ksys_write+0x67/0xe0
>  __x64_sys_write+0x1a/0x20
>  do_syscall_64+0x57/0x1d0
>  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Make sure the module in question is loaded and return an error if not.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 39f4034693 ("intel_th: Add driver infrastructure for Intel(R) Trace Hub devices")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: Ammy Yi <ammy.yi@intel.com>
Tested-by: Ammy Yi <ammy.yi@intel.com>
Cc: stable@vger.kernel.org # v4.4
Link: https://lore.kernel.org/r/20200706161339.55468-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:12:48 +02:00
Alexander Shishkin
fd73d74a32 intel_th: pci: Add Emmitsburg PCH support
This adds support for the Trace Hub in Emmitsburg PCH.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@vger.kernel.org # v4.14+
Link: https://lore.kernel.org/r/20200706161339.55468-4-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:12:48 +02:00
Alexander Shishkin
6227585dc7 intel_th: pci: Add Tiger Lake PCH-H support
This adds support for the Trace Hub in Tiger Lake PCH-H.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@vger.kernel.org # v4.14+
Link: https://lore.kernel.org/r/20200706161339.55468-3-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:12:48 +02:00
Alexander Shishkin
203c1f6150 intel_th: pci: Add Jasper Lake CPU support
This adds support for the Trace Hub in Jasper Lake CPU.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@vger.kernel.org # v4.14+
Link: https://lore.kernel.org/r/20200706161339.55468-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 15:12:47 +02:00
Gerald Schaefer
dd9ce2d6ee MAINTAINERS: update email address for Gerald Schaefer
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2020-07-10 15:06:49 +02:00
Heiko Carstens
2c08f65fd7 MAINTAINERS: update email address for Heiko Carstens
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2020-07-10 15:06:44 +02:00
Andy Shevchenko
f743061a85 serial: core: Initialise spin lock before use in uart_configure_port()
The comment near to uart_port_spin_lock_init() says:

  Ensure that the serial console lock is initialised early.
  If this port is a console, then the spinlock is already initialised.

and there is nothing about enabled or disabled consoles. The commit
a3cb39d258 ("serial: core: Allow detach and attach serial device
for console") made a change, which follows the comment, and also to
prevent reinitialisation of the lock in use, when user detaches and
attaches back the same console device. But this change discovers
another issue, that uart_add_one_port() tries to access a spin lock
that now may be uninitialised. This happens when a driver expects
the serial core to register a console on its behalf. In this case
we must initialise a spin lock before use.

Fixes: a3cb39d258 ("serial: core: Allow detach and attach serial device for console")
Reported-by: Marc Zyngier <maz@kernel.org>
Reported-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20200706214903.56148-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:44:46 +02:00
Chuhong Yuan
d8edf8eb5f serial: mxs-auart: add missed iounmap() in probe failure and remove
This driver calls ioremap() in probe, but it misses calling iounmap() in
probe's error handler and remove.
Add the missed calls to fix it.

Fixes: 47d37d6f94 ("serial: Add auart driver for i.MX23/28")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200709135608.68290-1-hslester96@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:44:46 +02:00
Dan Carpenter
ba8c423488 xen/xenbus: Fix a double free in xenbus_map_ring_pv()
When there is an error the caller frees "info->node" so the free here
will result in a double free.  We should just delete first kfree().

Fixes: 3848e4e0a3 ("xen/xenbus: avoid large structs and arrays on the stack")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200710113610.GA92345@mwanda
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-07-10 07:20:43 -05:00
Dan Carpenter
ef75e14a6c staging: comedi: verify array index is correct before using it
This code reads from the array before verifying that "trig" is a valid
index.  If the index is wildly out of bounds then reading from an
invalid address could lead to an Oops.

Fixes: a8c66b684e ("staging: comedi: addi_apci_1500: rewrite the subdevice support functions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20200709102936.GA20875@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 14:03:00 +02:00
Hans de Goede
59d1d2e8e1 virt: vbox: Fix guest capabilities mask check
Check the passed in capabilities against VMMDEV_GUEST_CAPABILITIES_MASK
instead of against VMMDEV_EVENT_VALID_EVENT_MASK.
This tightens the allowed mask from 0x7ff to 0x7.

Fixes: 0ba002bc43 ("virt: Add vboxguest driver for Virtual Box Guest integration")
Cc: stable@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200709120858.63928-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 13:40:19 +02:00
Hans de Goede
f794db6841 virt: vbox: Fix VBGL_IOCTL_VMMDEV_REQUEST_BIG and _LOG req numbers to match upstream
Until this commit the mainline kernel version (this version) of the
vboxguest module contained a bug where it defined
VBGL_IOCTL_VMMDEV_REQUEST_BIG and VBGL_IOCTL_LOG using
_IOC(_IOC_READ | _IOC_WRITE, 'V', ...) instead of
_IO(V, ...) as the out of tree VirtualBox upstream version does.

Since the VirtualBox userspace bits are always built against VirtualBox
upstream's headers, this means that so far the mainline kernel version
of the vboxguest module has been failing these 2 ioctls with -ENOTTY.
I guess that VBGL_IOCTL_VMMDEV_REQUEST_BIG is never used causing us to
not hit that one and sofar the vboxguest driver has failed to actually
log any log messages passed it through VBGL_IOCTL_LOG.

This commit changes the VBGL_IOCTL_VMMDEV_REQUEST_BIG and VBGL_IOCTL_LOG
defines to match the out of tree VirtualBox upstream vboxguest version,
while keeping compatibility with the old wrong request defines so as
to not break the kernel ABI in case someone has been using the old
request defines.

Fixes: f6ddd094f5 ("virt: Add vboxguest driver for Virtual Box Guest integration UAPI")
Cc: stable@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200709120858.63928-2-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 13:40:19 +02:00
Greg Kroah-Hartman
d1c0d96535 Merge tag 'fixes-for-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:

USB: fixes for v5.8-rc3

Adding support for recent Intel devices (Tiger Lake and Jasper Lake)
on dwc3. We have some endianess fixes in cdns3, a memleak fix in
gr_udc and lock API usage fix in the legacy f_uac1

Signed-off-by: Felipe Balbi <balbi@kernel.org>

* tag 'fixes-for-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: gadget: function: fix missing spinlock in f_uac1_legacy
  usb: gadget: udc: atmel: fix uninitialized read in debug printk
  usb: gadget: udc: atmel: remove outdated comment in usba_ep_disable()
  usb: dwc2: Fix shutdown callback in platform
  usb: cdns3: trace: fix some endian issues
  usb: cdns3: ep0: fix some endian issues
  usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()
  usb: gadget: fix langid kernel-doc warning in usbstring.c
  usb: dwc3: pci: add support for the Intel Jasper Lake
  usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant
2020-07-10 12:40:04 +02:00
Huacai Chen
3d9fdc252b KVM: MIPS: Fix build errors for 32bit kernel
Commit dc6d95b153 ("KVM: MIPS: Add more MMIO load/store
instructions emulation") introduced some 64bit load/store instructions
emulation which are unavailable on 32bit platform, and it causes build
errors:

arch/mips/kvm/emulate.c: In function 'kvm_mips_emulate_store':
arch/mips/kvm/emulate.c:1734:6: error: right shift count >= width of type [-Werror]
      ((vcpu->arch.gprs[rt] >> 56) & 0xff);
      ^
arch/mips/kvm/emulate.c:1738:6: error: right shift count >= width of type [-Werror]
      ((vcpu->arch.gprs[rt] >> 48) & 0xffff);
      ^
arch/mips/kvm/emulate.c:1742:6: error: right shift count >= width of type [-Werror]
      ((vcpu->arch.gprs[rt] >> 40) & 0xffffff);
      ^
arch/mips/kvm/emulate.c:1746:6: error: right shift count >= width of type [-Werror]
      ((vcpu->arch.gprs[rt] >> 32) & 0xffffffff);
      ^
arch/mips/kvm/emulate.c:1796:6: error: left shift count >= width of type [-Werror]
      (vcpu->arch.gprs[rt] << 32);
      ^
arch/mips/kvm/emulate.c:1800:6: error: left shift count >= width of type [-Werror]
      (vcpu->arch.gprs[rt] << 40);
      ^
arch/mips/kvm/emulate.c:1804:6: error: left shift count >= width of type [-Werror]
      (vcpu->arch.gprs[rt] << 48);
      ^
arch/mips/kvm/emulate.c:1808:6: error: left shift count >= width of type [-Werror]
      (vcpu->arch.gprs[rt] << 56);
      ^
cc1: all warnings being treated as errors
make[3]: *** [arch/mips/kvm/emulate.o] Error 1

So, use #if defined(CONFIG_64BIT) && defined(CONFIG_KVM_MIPS_VZ) to
guard the 64bit load/store instructions emulation.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: dc6d95b153 ("KVM: MIPS: Add more MMIO load/store instructions emulation")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1594365797-536-1-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10 06:15:38 -04:00
Paolo Bonzini
83d31e5271 KVM: nVMX: fixes for preemption timer migration
Commit 850448f35a ("KVM: nVMX: Fix VMX preemption timer migration",
2020-06-01) accidentally broke nVMX live migration from older version
by changing the userspace ABI.  Restore it and, while at it, ensure
that vmx->nested.has_preemption_timer_deadline is always initialized
according to the KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE flag.

Cc: Makarand Sonare <makarandsonare@google.com>
Fixes: 850448f35a ("KVM: nVMX: Fix VMX preemption timer migration")
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10 06:15:36 -04:00
Charan Teja Kalla
6348dd291e dmabuf: use spinlock to access dmabuf->name
There exists a sleep-while-atomic bug while accessing the dmabuf->name
under mutex in the dmabuffs_dname(). This is caused from the SELinux
permissions checks on a process where it tries to validate the inherited
files from fork() by traversing them through iterate_fd() (which
traverse files under spin_lock) and call
match_file(security/selinux/hooks.c) where the permission checks happen.
This audit information is logged using dump_common_audit_data() where it
calls d_path() to get the file path name. If the file check happen on
the dmabuf's fd, then it ends up in ->dmabuffs_dname() and use mutex to
access dmabuf->name. The flow will be like below:
flush_unauthorized_files()
  iterate_fd()
    spin_lock() --> Start of the atomic section.
      match_file()
        file_has_perm()
          avc_has_perm()
            avc_audit()
              slow_avc_audit()
	        common_lsm_audit()
		  dump_common_audit_data()
		    audit_log_d_path()
		      d_path()
                        dmabuffs_dname()
                          mutex_lock()--> Sleep while atomic.

Call trace captured (on 4.19 kernels) is below:
___might_sleep+0x204/0x208
__might_sleep+0x50/0x88
__mutex_lock_common+0x5c/0x1068
__mutex_lock_common+0x5c/0x1068
mutex_lock_nested+0x40/0x50
dmabuffs_dname+0xa0/0x170
d_path+0x84/0x290
audit_log_d_path+0x74/0x130
common_lsm_audit+0x334/0x6e8
slow_avc_audit+0xb8/0xf8
avc_has_perm+0x154/0x218
file_has_perm+0x70/0x180
match_file+0x60/0x78
iterate_fd+0x128/0x168
selinux_bprm_committing_creds+0x178/0x248
security_bprm_committing_creds+0x30/0x48
install_exec_creds+0x1c/0x68
load_elf_binary+0x3a4/0x14e0
search_binary_handler+0xb0/0x1e0

So, use spinlock to access dmabuf->name to avoid sleep-while-atomic.

Cc: <stable@vger.kernel.org> [5.3+]
Signed-off-by: Charan Teja Kalla <charante@codeaurora.org>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
 [sumits: added comment to spinlock_t definition to avoid warning]
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/a83e7f0d-4e54-9848-4b58-e1acdbe06735@codeaurora.org
2020-07-10 15:39:29 +05:30
Tom Rix
211f083473 USB: c67x00: fix use after free in c67x00_giveback_urb
clang static analysis flags this error

c67x00-sched.c:489:55: warning: Use of memory after it is freed [unix.Malloc]
        usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);
                                                             ^~~~~~~~~~~~
Problem happens in this block of code

	c67x00_release_urb(c67x00, urb);
	usb_hcd_unlink_urb_from_ep(c67x00_hcd_to_hcd(c67x00), urb);
	spin_unlock(&c67x00->lock);
	usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);

In the call to c67x00_release_urb has this freeing of urbp

	urbp = urb->hcpriv;
	urb->hcpriv = NULL;
	list_del(&urbp->hep_node);
	kfree(urbp);

And so urbp is freed before usb_hcd_giveback_urb uses it as its 3rd
parameter.

Since all is required is the status, pass the status directly as is
done in c64x00_urb_dequeue

Fixes: e9b29ffc51 ("USB: add Cypress c67x00 OTG controller HCD driver")
Signed-off-by: Tom Rix <trix@redhat.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200708131243.24336-1-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 09:01:41 +02:00
Vincent Chen
70ee5731a4 riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warning
The constant arrays in gdb_xml.h are only used in arch/riscv/kernel/kgdb.c,
but other c files may include the gdb_xml.h indirectly via including the
kgdb.h. Hence, It will cause many unused-const-variable warnings. This
patch makes the kgdb.h not to include the gdb_xml.h to solve this problem.

Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09 20:12:28 -07:00
Vincent Chen
def0aa218e kgdb: Move the extern declaration kgdb_has_hit_break() to generic kgdb.h
Currently, only riscv kgdb.c uses the kgdb_has_hit_break() to identify
the kgdb breakpoint. It causes other architectures will encounter the "no
previous prototype" warnings if the compile option has W=1. Moving the
declaration of extern kgdb_has_hit_break() from risc-v kgdb.h to generic
kgdb.h to avoid generating these warnings.

Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09 20:12:19 -07:00