diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-21 17:08:16 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-25 17:43:52 +0300 |
| commit | 0849acee2f532d4be3ca2368874ad88b5dab6dca (patch) | |
| tree | 746813a9672a62d22f23f3a9b7d4ce32afea0d6c | |
| parent | 8813d20d32a7a066731d3f3f0f73f325bcd9ae86 (diff) | |
| download | linux-0849acee2f532d4be3ca2368874ad88b5dab6dca.tar.xz | |
ACPI: video: Reduce the number of auxiliary device dereferences
Store the &aux_dev->dev pointer in a separate local variable in
acpi_video_bus_probe() to avoid dereferencing aux_dev many times.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2707186.Lt9SDvczpP@rafael.j.wysocki
| -rw-r--r-- | drivers/acpi/acpi_video.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 05793ddef787..bdc3f4933abf 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -1978,7 +1978,8 @@ static bool acpi_video_bus_dev_is_duplicate(struct device *dev) static int acpi_video_bus_probe(struct auxiliary_device *aux_dev, const struct auxiliary_device_id *id_unused) { - struct acpi_device *device = ACPI_COMPANION(&aux_dev->dev); + struct device *dev = &aux_dev->dev; + struct acpi_device *device = ACPI_COMPANION(dev); static DEFINE_MUTEX(probe_lock); struct acpi_video_bus *video; static int instance; @@ -1988,7 +1989,7 @@ static int acpi_video_bus_probe(struct auxiliary_device *aux_dev, /* Probe one video bus device at a time in case there are duplicates. */ guard(mutex)(&probe_lock); - if (!allow_duplicates && acpi_video_bus_dev_is_duplicate(&aux_dev->dev)) { + if (!allow_duplicates && acpi_video_bus_dev_is_duplicate(dev)) { pr_info(FW_BUG "Duplicate ACPI video bus devices for the" " same VGA controller, please try module " @@ -2059,7 +2060,7 @@ static int acpi_video_bus_probe(struct auxiliary_device *aux_dev, !auto_detect) acpi_video_bus_register_backlight(video); - error = acpi_video_bus_add_notify_handler(video, &aux_dev->dev); + error = acpi_video_bus_add_notify_handler(video, dev); if (error) goto err_del; |