firmware/dmi_scan: Uninline dmi_get_bios_year() helper

Uninline dmi_get_bios_year() which, in particular, allows us
to optimize it in the future.

While doing this, convert the function to return an error code
when BIOS date is not present or not parsable, or CONFIG_DMI=n.

Additionally, during the move, add a bit of documentation.

Suggested-by: Bjorn Helgaas <[email protected]>
Suggested-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Jean Delvare <[email protected]>
Reviewed-by: Rafael J. Wysocki <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Lukas Wunner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rafael J . Wysocki <[email protected]>
Cc: [email protected]
Cc: [email protected]
Fixes: 492a1abd61e4 ("dmi: Introduce the dmi_get_bios_year() helper function")
Signed-off-by: Ingo Molnar <[email protected]>

0 files changed, 0 insertions, 0 deletions