Commit Graph

826547 Commits

Author SHA1 Message Date
Suzuki K Poulose
455328b177 coresight: Merge the static and dynamic replicator drivers
Merge the drivers for the two varieties of replicators into
a singel one. The dynamic replicator has programming base
which can be programmed to filter the trace data. The driver
detects the type based on the "base" address value of the
device, which is NULL for the static device.

Also, while at it, remove the now obsolete DYNAMIC_REPLICATOR
config entry.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:15 +02:00
Suzuki K Poulose
c827db6566 coresight: dynamic-replicator: Prepare for merging with static replicator
Rename the dynamic replicator specific routines for merging with the
replicator driver. Also re-arrange the probe routine to make it easier
to merge.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:15 +02:00
Suzuki K Poulose
eb6934b5c1 coresight: replicator: Prepare for merging with dynamic-replicator
As a preparatory step to merge the separate drivers for static and
dynamic replicators, annotate the static replicator specific details.
Also refactor the probe routine to make it generic in order to merge
the drivers easily.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:15 +02:00
Suzuki K Poulose
ee8146aad8 coresight: dynamic-replicator: Clean up error handling
We fail to disable the clock in case of a failure during the
probe. Clean this up. Also, we are supposed to drop the pm reference
only when the probing is successful.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:15 +02:00
Suzuki K Poulose
08be874775 coresight: tmc: Report DMA setup failures
If we failed to setup the DMA mask for TMC-ETR, report the
error before failing the probe.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:15 +02:00
YueHaibing
61810404b4 coresight: catu: Make catu_helper_ops and catu_ops static
Fix sparse warnings:

drivers/hwtracing/coresight/coresight-catu.c:488:35: warning:
 symbol 'catu_helper_ops' was not declared. Should it be static?
drivers/hwtracing/coresight/coresight-catu.c:493:28: warning:
 symbol 'catu_ops' was not declared. Should it be static?

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:15 +02:00
Arnd Bergmann
59d63de076 coresight: catu: fix clang build warning
Clang points out a syntax error, as the etr_catu_buf_ops structure is
declared 'static' before the type is known:

In file included from drivers/hwtracing/coresight/coresight-tmc-etr.c:12:
drivers/hwtracing/coresight/coresight-catu.h:116:40: warning: tentative definition of variable with internal linkage has incomplete non-array type 'const struct etr_buf_operations' [-Wtentative-definition-incomplete-type]
static const struct etr_buf_operations etr_catu_buf_ops;
                                       ^
drivers/hwtracing/coresight/coresight-catu.h:116:21: note: forward declaration of 'struct etr_buf_operations'
static const struct etr_buf_operations etr_catu_buf_ops;

This seems worth fixing in the code, so replace pointer to the empty
constant structure with a NULL pointer. We need an extra NULL pointer
check here, but the result should be better object code otherwise,
avoiding the silly empty structure.

Fixes: 434d611cdd ("coresight: catu: Plug in CATU as a backend for ETR buffer")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
[Fixed line over 80 characters]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 22:00:14 +02:00
Hans de Goede
cf4f2ad6b8 virt: vbox: Sanity-check parameter types for hgcm-calls coming from userspace
Userspace can make host function calls, called hgcm-calls through the
/dev/vboxguest device.

In this case we should not accept all hgcm-function-parameter-types, some
are only valid for in kernel calls.

This commit adds proper hgcm-function-parameter-type validation to the
ioctl for doing a hgcm-call from userspace.

Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 21:52:40 +02:00
Todd Kjos
0b0509508b binder: check for overflow when alloc for security context
When allocating space in the target buffer for the security context,
make sure the extra_buffers_size doesn't overflow. This can only
happen if the given size is invalid, but an overflow can turn it
into a valid size. Fail the transaction if an overflow is detected.

Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 21:26:49 +02:00
Fuqian Huang
d2f4a83fe3 misc: genwqe: Fix misuse of %x
The pointer should be printed with %p or %px rather than
cast to long long type and printed with %016llx.
Change %x to %p to print the pointer.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:53:17 +02:00
Greg Kroah-Hartman
cf7eb03333 Update extcon for v5.2
Detailed description for this pull request:
 1. Add new extcon-intel-mrfld.c extcon provider driver
 - On Intel Merrifield the Basin Cove PMIC provides a feature to detect
 the USB connection type. This driver utilizes the feature in order
 to support the USB dual role detection.
 
 2. Update the extcon provider drivers
 - For extcon-intel-cht-wc.c, make charger detection co-existed
   with OTG host mode and enable external charger.
 - For intel extcon driver, add common header file (extcon-intel.h)
   in order to remove the duplicate definitions.
 - For extcon-arizonal.c, disable microphone detection on driver removal.
 
 3.
 - Edit comment of extcon_unregister_notifer() to fix a build warning
 - Add CONFIG_ACPI dependency to Kconfig to fix a build error for extcon-axp.c
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Merge tag 'extcon-next-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for v5.2

Detailed description for this pull request:
1. Add new extcon-intel-mrfld.c extcon provider driver
- On Intel Merrifield the Basin Cove PMIC provides a feature to detect
the USB connection type. This driver utilizes the feature in order
to support the USB dual role detection.

2. Update the extcon provider drivers
- For extcon-intel-cht-wc.c, make charger detection co-existed
  with OTG host mode and enable external charger.
- For intel extcon driver, add common header file (extcon-intel.h)
  in order to remove the duplicate definitions.
- For extcon-arizonal.c, disable microphone detection on driver removal.

3.
- Edit comment of extcon_unregister_notifer() to fix a build warning
- Add CONFIG_ACPI dependency to Kconfig to fix a build error for extcon-axp.c

* tag 'extcon-next-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon:
  extcon: arizona: Disable mic detect if running when driver is removed
  extcon: axp288: Add a depends on ACPI to the Kconfig entry
  extcon: mrfld: Introduce extcon driver for Basin Cove PMIC
  extcon: intel: Split out some definitions to a common header
  extcon: Fix build warning for extcon_unregister_notifier comment
  extcon: intel-cht-wc: Enable external charger
  extcon: intel-cht-wc: Make charger detection co-existed with OTG host mode
2019-04-25 19:50:22 +02:00
Stephen Rothwell
ba2e544075 lib/siphash.c: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch aims to suppress up to 18 missing-break-in-switch false
positives on some architectures.

Cc: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:47:24 +02:00
Srinivas Kandagatla
ae0c2d7255 nvmem: core: add NVMEM_SYSFS Kconfig
Many nvmem providers are not very keen on having default sysfs
nvmem entry, as most of the usecases for them are inside kernel
itself. And in some cases read/writes to some areas in nvmem are
restricted and trapped at secure monitor level, so accessing them
from userspace would result in board reboots.

This patch adds new NVMEM_SYSFS Kconfig to make binary sysfs entry
an optional one. This provision will give more flexibility to users.
This patch also moves existing sysfs code to a new file so that its
not compiled in when its not really required.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Gaurav Kohli <gkohli@codeaurora.org>
Tested-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:44:33 +02:00
Yangtao Li
fc1eb6ebbd nvmem: sunxi_sid: Support SID on H6
Add support for H6's SID controller. It supports 4K-bit
EFUSE, bigger than before.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:13 +02:00
Yangtao Li
055f5df53f nvmem: sunxi-sid: convert to SPDX license tags
Updates license to use SPDX-License-Identifier.

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:13 +02:00
Yangtao Li
f6edbb38ea nvmem: sunxi-sid: add binding for H6's SID controller
Add a binding for H6's SID controller.

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:13 +02:00
Yangtao Li
b8371fc104 nvmem: sunxi-sid: fix wrong description in kernel doc
qfprom->sunxi-sid

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:13 +02:00
Anson Huang
ededa0457b nvmem: imx-iim: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:13 +02:00
Anson Huang
794a1e229b nvmem: mxs-ocotp: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Anson Huang
3b26cd8858 nvmem: imx-ocotp: use devm_platform_ioremap_resource() to simplify code
Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Jorge Ramirez-Ortiz
2fe518fecb nvmem: core: fix read buffer in place
When the bit_offset in the cell is zero, the pointer to the msb will
not be properly initialized (ie, will still be pointing to the first
byte in the buffer).

This being the case, if there are bits to clear in the msb, those will
be left untouched while the mask will incorrectly clear bit positions
on the first byte.

This commit also makes sure that any byte unused in the cell is
cleared.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Fabrice Gasnier
0a9b2d1ce4 nvmem: core: add nvmem_cell_read_u16
Add nvmem_cell_read_u16() helper to ease read of an u16 value on consumer
side. This is inspired by nvmem_cell_read_u32() function.
This helper is useful on stm32 that has 16 bits data cells stored in non
volatile memory.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Fabrice Gasnier
7c1cd8fda8 nvmem: stm32: add support for STM32MP15 BSEC to control OTP data
On STM32MP15, OTP area may be read/written by using BSEC (boot, security
and OTP control). BSEC registers set is composed of various regions, among
which control registers and OTP shadow registers.
Secure monitor calls are involved in this process to allow (or deny)
access to the full range of OTP data.
This adds support for reading and writing OTP data using SMC services.
Data content can be aligned on 16-bits or 8-bits. Then take care of it,
since BSEC data is 32-bits wide.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Fabrice Gasnier
ded1b7fc2c nvmem: Add driver for STM32 factory-programmed read only mem
Add a read only nvmem driver for STM32 factory-programmed memory area
(on-chip non-volatile storage).

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Fabrice Gasnier
4f4cb173d8 dt-bindings: nvmem: Add STM32 factory-programmed romem
Add documentation for STMicroelectronics STM32 Factory-programmed
read only memory area.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Chen-Yu Tsai
da75b89097 nvmem: sunxi_sid: Support SID on A83T and H5
The device tree binding already lists compatible strings for these two
SoCs. They don't have the defect as seen on the H3, and the size and
register layout is the same as the A64. Furthermore, the driver does
not include nvmem cell definitions.

Add support for these two compatible strings, re-using the config for
the A64.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:12 +02:00
Chen-Yu Tsai
273a474ee8 nvmem: sunxi_sid: Read out data in native format
Originally the SID e-fuses were thought to be in big-endian format.
Later sources show that they are in fact native or little-endian.
The most compelling evidence is the thermal sensor calibration data,
which is a set of one to three 16-bit values. In native-endian they
are in 16-bit cells with increasing offsets, whereas with big-endian
they are in the wrong order, and a gap with no data will show if there
are one or three cells.

Switch to a native endian representation for the nvmem device. For the
H3, the register read-out method was already returning data in native
endian. This only affects the other SoCs.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:11 +02:00
Chen-Yu Tsai
7fa5ad23db nvmem: sunxi_sid: Dynamically allocate nvmem_config structure
The sunxi_sid driver currently uses a statically allocated nvmem_config
structure that is updated at probe time. This is sub-optimal as it
limits the driver to one instance, and also takes up space even if the
device is not present.

Modify the driver to allocate the nvmem_config structure at probe time,
plugging in the desired parameters along the way.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:11 +02:00
Chen-Yu Tsai
de2a3eaea5 nvmem: sunxi_sid: Optimize register read-out method
SID cells are 32-bit aligned, and a multiple of 32 bits in length. The
only outlier is the thermal sensor calibration data, which is 16 bits
per sensor. However a whole 64 bits is allocated for this purpose, so
we could consider it conforming to the rule above.

Also, the register read-out method assumes native endian, unlike the
direct MMIO method, which assumes big endian. Thus no endian conversion
is involved.

Under these assumptions, the register read-out method can be slightly
optimized. Instead of reading one word then discarding 3 bytes, read
the whole word directly into the buffer. However, for reads under 4
bytes or trailing bytes, we still use a scratch buffer to extract the
requested bytes.

We could go one step further if .word_size was 4, but changing that
would affect the sysfs interface's behavior.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:11 +02:00
Chen-Yu Tsai
9c4adfb5dc nvmem: sunxi_sid: Read out SID for randomness without looping
Since the reg_read callbacks already support arbitrary, but 4-byte
aligned. offsets and lengths into the SID, there is no need for another
for loop just to use it to read 1 byte at a time.

Read out the whole SID block in one go.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:11 +02:00
Lucas Stach
dd4c1047b1 nvmem: imx-ocotp: broaden Kconfig dependency
The i.MX OCOTP controller is used in numerous Freescale/NXP
SoCs from the MXC family, so the strict dependency on the
i.MX6 SoC is too narrow. Broaden it to cover all the MXC
familiy members.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:11 +02:00
Lucas Stach
38e7b6efe9 nvmem: imx-ocotp: add support for imx8mq
The i.MX8MQ uses the same OCOTP block as the i.MX7D, but with
fourfold increase in fuse banks.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:43:11 +02:00
Gustavo A. R. Silva
b0a69f05b9 parport: ieee1284: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warning:

drivers/parport/ieee1284.c: In function ‘parport_read’:
drivers/parport/ieee1284.c:722:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (parport_negotiate (port, IEEE1284_MODE_NIBBLE)) {
      ^
drivers/parport/ieee1284.c:726:2: note: here
  case IEEE1284_MODE_NIBBLE:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:41:47 +02:00
Jean-Francois Dagenais
49695ac468 w1: ds2408: reset on output_write retry with readback
When we have success in 'Channel Access Write' but reading back latch
states fails, a write is retried without doing a proper slave reset.
This leads to protocol errors as the slave treats the next 'Channel
Access Write' as the continuation of previous command.

This commit is fixing this by making sure if the retry loop re-runs, a
reset is performed, whatever the failure (CONFIRM_BYTE or the read
back).

The loop was quite due for a cleanup and this change mandated it. By
isolating the CONFIG_W1_SLAVE_DS2408_READBACK case into it's own
function, we vastly reduce the visual and branching(runtime and
compile-time) noise.

Reported-by: Mariusz Bialonczyk <manio@skyboo.net>
Tested-by: Mariusz Bialonczyk <manio@skyboo.net>
Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:41:27 +02:00
Greg Kroah-Hartman
b909ef83ed interconnect: for 5.2
Here are some tiny patches for the 5.2-rc1 merge window:
 
 - Add linux-pm@ as a mailing list for the interconnect API.
 - Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
 
 Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Merge tag 'icc-5.2-rc1' of https://git.linaro.org/people/georgi.djakov/linux into char-misc-next

Georgi writes:

interconnect: for 5.2

Here are some tiny patches for the 5.2-rc1 merge window:

- Add linux-pm@ as a mailing list for the interconnect API.
- Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>

* tag 'icc-5.2-rc1' of https://git.linaro.org/people/georgi.djakov/linux:
  interconnect: convert to DEFINE_SHOW_ATTRIBUTE
  MAINTAINERS: Add mailing list for the interconnect API
2019-04-25 19:36:09 +02:00
Alexander Usyskin
43b8a7ed47 mei: expose device state in sysfs
Expose mei device state to user-space through sysfs.
This gives indication to applications that driver is in transition,
usefully mostly to detect link reset state.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:33:34 +02:00
Tomas Winkler
d65bf04200 mei: hdcp: use own Kconfig file
The mei/hdcp module have its own Makefile
so naturally it should have associated Kconfig
in the same directory.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:33:34 +02:00
Patrick Venture
01c60dcea9 drivers/misc: Add Aspeed P2A control driver
The ASPEED AST2400, and AST2500 in some configurations include a
PCI-to-AHB MMIO bridge.  This bridge allows a server to read and write
in the BMC's physical address space.  This feature is especially useful
when using this bridge to send large files to the BMC.

The host may use this to send down a firmware image by staging data at a
specific memory address, and in a coordinated effort with the BMC's
software stack and kernel, transmit the bytes.

This driver enables the BMC to unlock the PCI bridge on demand, and
configure it via ioctl to allow the host to write bytes to an agreed
upon location.  In the primary use-case, the region to use is known
apriori on the BMC, and the host requests this information.  Once this
request is received, the BMC's software stack will enable the bridge and
the region and then using some software flow control (possibly via IPMI
packets), copy the bytes down.  Once the process is complete, the BMC
will disable the bridge and unset any region involved.

The default behavior of this bridge when present is: enabled and all
regions marked read-write.  This driver will fix the regions to be
read-only and then disable the bridge entirely.

The memory regions protected are:
 * BMC flash MMIO window
 * System flash MMIO windows
 * SOC IO (peripheral MMIO)
 * DRAM

The DRAM region itself is all of DRAM and cannot be further specified.
Once the PCI bridge is enabled, the host can read all of DRAM, and if
the DRAM section is write-enabled, then it can write to all of it.

Signed-off-by: Patrick Venture <venture@google.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:33:34 +02:00
Patrick Venture
28703c6ef6 dt-bindings: misc: aspeed-p2a-ctrl: add support
Document the ast2400, ast2500 PCI-to-AHB bridge control driver bindings.

Signed-off-by: Patrick Venture <venture@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 19:33:33 +02:00
Greg Kroah-Hartman
3a26172437 Merge 5.1-rc6 into char-misc-next
We want the fixes, and this resolves a merge error in the fastrpc
driver.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-21 23:14:47 +02:00
Linus Torvalds
085b775580 Linux 5.1-rc6 2019-04-21 10:45:57 -07:00
Linus Torvalds
9e5de623a0 NFS client bugfixes for Linux 5.1
Highlights include:
 
 Bugfixes:
 - Fix a regression in which an RPC call can be tagged with an error despite
   the transmission being successful
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Merge tag 'nfs-for-5.1-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfix from Trond Myklebust:
 "Fix a regression in which an RPC call can be tagged with an error
  despite the transmission being successful"

* tag 'nfs-for-5.1-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: Ignore queue transmission errors on successful transmission
2019-04-20 12:55:23 -07:00
Linus Torvalds
a06bc2f241 SCSI fixes on 20190420
Three minor fixes: two obvious ones in drivers and a fix to the SG_IO
 path to correctly return status on error.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Three minor fixes: two obvious ones in drivers and a fix to the SG_IO
  path to correctly return status on error"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: aic7xxx: fix EISA support
  Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO"
  scsi: core: set result when the command cannot be dispatched
2019-04-20 12:52:23 -07:00
Linus Torvalds
38a2ca2cac for-linus-20190420
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Merge tag 'for-linus-20190420' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A set of small fixes that should go into this series. This contains:

   - Removal of unused queue member (Hou)

   - Overflow bvec fix (Ming)

   - Various little io_uring tweaks (me)
       - kthread parking
       - Only call cpu_possible() for verified CPU
       - Drop unused 'file' argument to io_file_put()
       - io_uring_enter vs io_uring_register deadlock fix
       - CQ overflow fix

   - BFQ internal depth update fix (me)"

* tag 'for-linus-20190420' of git://git.kernel.dk/linux-block:
  block: make sure that bvec length can't be overflow
  block: kill all_q_node in request_queue
  io_uring: fix CQ overflow condition
  io_uring: fix possible deadlock between io_uring_{enter,register}
  io_uring: drop io_file_put() 'file' argument
  bfq: update internal depth state when queue depth changes
  io_uring: only test SQPOLL cpu after we've verified it
  io_uring: park SQPOLL thread if it's percpu
2019-04-20 12:20:58 -07:00
Linus Torvalds
34396bdfd2 - Fix the random PID check
- Fix the disable controller logic in the designware driver
 - Fix I3C entry in MAINTAINERS
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Merge tag 'i3c/fixes-for-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pill i3c fixes from Boris Brezillon:

 - fix the random PID check

 - fix the disable controller logic in the designware driver

 - fix I3C entry in MAINTAINERS

* tag 'i3c/fixes-for-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  MAINTAINERS: Fix the I3C entry
  i3c: dw: Fix dw_i3c_master_disable controller by using correct mask
  i3c: Fix the verification of random PID
2019-04-20 10:43:37 -07:00
Linus Torvalds
4b609f1e26 sound fixes for 5.1-rc6
Two core fixes for long-standing bugs for the races at concurrent
 device creation and deletion that were (unsurprisingly) spotted by
 syzkaller with usb-fuzzer.  The rest are usual small HD-audio fixes.
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Merge tag 'sound-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Two core fixes for long-standing bugs for the races at concurrent
  device creation and deletion that were (unsurprisingly) spotted by
  syzkaller with usb-fuzzer.

  The rest are usual small HD-audio fixes"

* tag 'sound-5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - add two more pin configuration sets to quirk table
  ALSA: core: Fix card races between register and disconnect
  ALSA: info: Fix racy addition/deletion of nodes
  ALSA: hda: Initialize power_state field properly
2019-04-20 10:19:30 -07:00
Linus Torvalds
e899cc3b3d Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
 "Misc clocksource driver fixes, and a sched-clock wrapping fix"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze()
  clocksource/drivers/timer-ti-dm: Remove omap_dm_timer_set_load_start
  clocksource/drivers/oxnas: Fix OX820 compatible
  clocksource/drivers/arm_arch_timer: Remove unneeded pr_fmt macro
  clocksource/drivers/npcm: select TIMER_OF
2019-04-20 10:10:49 -07:00
Linus Torvalds
b25c69b9d5 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Misc fixes:
   - various tooling fixes
   - kretprobe fixes
   - kprobes annotation fixes
   - kprobes error checking fix
   - fix the default events for AMD Family 17h CPUs
   - PEBS fix
   - AUX record fix
   - address filtering fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kprobes: Avoid kretprobe recursion bug
  kprobes: Mark ftrace mcount handler functions nokprobe
  x86/kprobes: Verify stack frame on kretprobe
  perf/x86/amd: Add event map for AMD Family 17h
  perf bpf: Return NULL when RB tree lookup fails in perf_env__find_btf()
  perf tools: Fix map reference counting
  perf evlist: Fix side band thread draining
  perf tools: Check maps for bpf programs
  perf bpf: Return NULL when RB tree lookup fails in perf_env__find_bpf_prog_info()
  tools include uapi: Sync sound/asound.h copy
  perf top: Always sample time to satisfy needs of use of ordered queuing
  perf evsel: Use hweight64() instead of hweight_long(attr.sample_regs_user)
  tools lib traceevent: Fix missing equality check for strcmp
  perf stat: Disable DIR_FORMAT feature for 'perf stat record'
  perf scripts python: export-to-sqlite.py: Fix use of parent_id in calls_view
  perf header: Fix lock/unlock imbalances when processing BPF/BTF info
  perf/x86: Fix incorrect PEBS_REGS
  perf/ring_buffer: Fix AUX record suppression
  perf/core: Fix the address filtering fix
  kprobes: Fix error check when reusing optimized probes
2019-04-20 10:05:02 -07:00
Linus Torvalds
1fd91d719e Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Misc fixes all over the place: a console spam fix, section attributes
  fixes, a KASLR fix, a TLB stack-variable alignment fix, a reboot
  quirk, boot options related warnings fix, an LTO fix, a deadlock fix
  and an RDT fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu/intel: Lower the "ENERGY_PERF_BIAS: Set to normal" message's log priority
  x86/cpu/bugs: Use __initconst for 'const' init data
  x86/mm/KASLR: Fix the size of the direct mapping section
  x86/Kconfig: Fix spelling mistake "effectivness" -> "effectiveness"
  x86/mm/tlb: Revert "x86/mm: Align TLB invalidation info"
  x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T
  x86/mm: Prevent bogus warnings with "noexec=off"
  x86/build/lto: Fix truncated .bss with -fdata-sections
  x86/speculation: Prevent deadlock on ssb_state::lock
  x86/resctrl: Do not repeat rdtgroup mode initialization
2019-04-20 10:01:11 -07:00
Linus Torvalds
2b4cf5850d Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "A deadline scheduler warning/race fix, and a cfs_period_us quota
  calculation workaround where the real fix looks too involved to merge
  immediately"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/deadline: Correctly handle active 0-lag timers
  sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup
2019-04-20 09:53:36 -07:00