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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2021-03-10 20:39:27 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-03-11 14:25:09 +0100 |
| commit | c68fded79a9fe1376a60049f2ab45d611969de5c (patch) | |
| tree | 91c0d15e4f24e615a1464c67bf4142d19aba5bee /drivers/firmware/dmi_scan.c | |
| parent | Merge series "Report jack and button detection + Capture Support" from Lucas ... (diff) | |
| download | linux-c68fded79a9fe1376a60049f2ab45d611969de5c.tar.xz linux-c68fded79a9fe1376a60049f2ab45d611969de5c.zip | |
ASoC: soc-core: fix DMI handling
When DMI information is not present, trying to assign the card long
name results in the following warning.
WARNING KERN tegra-audio-graph-card sound: ASoC: no DMI vendor name!
The initial solution suggested was to test if the card device is an
ACPI one. This causes a regression visible to userspace on all Intel
platforms, with UCM unable to load card profiles based on DMI
information: the card devices are not necessarily ACPI ones, e.g. when
the parent creates platform devices on Intel devices.
To fix this problem, this patch exports the existing dmi_available
variable and tests it in the ASoC core.
Fixes: c014170408bc ("ASoC: soc-core: Prevent warning if no DMI table is present")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jean Delvare <jdelvare@suse.de>
Link: https://lore.kernel.org/r/20210310193928.108850-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/firmware/dmi_scan.c')
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index d51ca0428bb8..f191a1f901ac 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -166,6 +166,7 @@ static int __init dmi_checksum(const u8 *buf, u8 len) static const char *dmi_ident[DMI_STRING_MAX]; static LIST_HEAD(dmi_devices); int dmi_available; +EXPORT_SYMBOL_GPL(dmi_available); /* * Save a DMI string |