linux-toradex.git/drivers/perf/qcom_l3_pmu.c, branch v7.0-rc2

Merge tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2024-05-22T19:13:40+00:00

Pull driver core updates from Greg KH:
 "Here is the small set of driver core and kernfs changes for 6.10-rc1.

  Nothing major here at all, just a small set of changes for some driver
  core apis, and minor fixups. Included in here are:

   - sysfs_bin_attr_simple_read() helper added and used

   - device_show_string() helper added and used

  All usages of these were acked by the various maintainers. Also in
  here are:

   - kernfs minor cleanup

   - removed unused functions

   - typo fix in documentation

   - pay attention to sysfs_create_link() failures in module.c finally

  All of these have been in linux-next for a very long time with no
  reported problems"

* tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  device property: Fix a typo in the description of device_get_child_node_count()
  kernfs: mount: Remove unnecessary ‘NULL’ values from knparent
  scsi: Use device_show_string() helper for sysfs attributes
  platform/x86: Use device_show_string() helper for sysfs attributes
  perf: Use device_show_string() helper for sysfs attributes
  IB/qib: Use device_show_string() helper for sysfs attributes
  hwmon: Use device_show_string() helper for sysfs attributes
  driver core: Add device_show_string() helper for sysfs attributes
  treewide: Use sysfs_bin_attr_simple_read() helper
  sysfs: Add sysfs_bin_attr_simple_read() helper
  module: don't ignore sysfs_create_link() failures
  driver core: Remove unused platform_notify, platform_notify_remove

perf: Use device_show_string() helper for sysfs attributes

2024-05-04T15:37:03+00:00

Deduplicate sysfs ->show() callbacks which expose a string at a static
memory location.  Use the newly introduced device_show_string() helper
in the driver core instead by declaring those sysfs attributes with
DEVICE_STRING_ATTR_RO().

No functional change intended.

Signed-off-by: Lukas Wunner 
Link: https://lore.kernel.org/r/3a297850312b4ecb62d6872121de04496900f502.1713608122.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman

perf/qcom: Assign parents for event_source devices

2024-04-19T14:59:30+00:00

Currently all these devices appear directly under /sys/devices/
Only root busses should appear there, so instead assign the pmu->dev
parents to be the platform devices.

Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@kroah.com/
Cc: Andy Gross 
Cc: Bjorn Andersson 
Signed-off-by: Jonathan Cameron 
Link: https://lore.kernel.org/r/20240412161057.14099-15-Jonathan.Cameron@huawei.com
Signed-off-by: Will Deacon

perf: qcom: use acpi_device_uid() for fetching _UID

2023-10-20T17:21:14+00:00

Convert manual _UID references to use the standard ACPI helper.

Signed-off-by: Raag Jadav 
Signed-off-by: Rafael J. Wysocki

perf: qcom: Use devm_platform_get_and_ioremap_resource()

2023-03-27T14:03:01+00:00

According to commit 890cc39a8799 ("drivers: provide
devm_platform_get_and_ioremap_resource()"), convert
platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yang Li 
Link: https://lore.kernel.org/r/20230315023108.36953-1-yang.lee@linux.alibaba.com
Signed-off-by: Will Deacon

ACPI: Drop parent field from struct acpi_device

2022-08-24T18:55:24+00:00

The parent field in struct acpi_device is, in fact, redundant,
because the dev.parent field in it effectively points to the same
object and it is used by the driver core.

Accordingly, the parent field can be dropped from struct acpi_device
and for this purpose define acpi_dev_parent() to retrieve a parent
struct acpi_device pointer from the dev.parent field in struct
acpi_device.  Next, update all of the users of the parent field
in struct acpi_device to use acpi_dev_parent() instead of it and
drop it.

While at it, drop the ACPI_IS_ROOT_DEVICE() macro that is only used
in one place in a confusing way.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Mark Brown 
Acked-by: Mika Westerberg 
Acked-by: Wei Liu 
Reviewed-by: Punit Agrawal

drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c

2021-06-11T10:18:40+00:00

Use common macro PMU_EVENT_ATTR_ID to simplify L3CACHE_EVENT_ATTR

Cc: Andy Gross 
Cc: Will Deacon 
Cc: Mark Rutland 
Signed-off-by: Qi Liu 
Link: https://lore.kernel.org/r/1623220863-58233-5-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon

perf: qcom: Remove redundant dev_err call in qcom_l3_cache_pmu_probe()

2021-06-08T11:48:39+00:00

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot 
Signed-off-by: ChenXiaoSong 
Link: https://lore.kernel.org/r/20210608084816.1046485-1-chenxiaosong2@huawei.com
Signed-off-by: Will Deacon

perf: qcom: use DEVICE_ATTR_RO macro

2021-06-01T13:23:09+00:00

Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.

Signed-off-by: YueHaibing 
Link: https://lore.kernel.org/r/20210528014749.24068-1-yuehaibing@huawei.com
Signed-off-by: Will Deacon

drivers/perf: convert sysfs sprintf family to sysfs_emit

2021-03-25T12:55:44+00:00

sprintf does not know the PAGE_SIZE maximum of the temporary buffer
used for sysfs content and it's possible to overrun the buffer length.

Use sysfs_emit() function to ensures that no overrun is done.

Signed-off-by: Qi Liu 
Link: https://lore.kernel.org/r/1616148273-16374-4-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon