In DMI type 0, there is several fields that encodes a release. The dmi_save_release() function have the logic to check if the field is valid. If so, it reports the actual value.
Signed-off-by: Erwan Velu <[email protected]> --- drivers/firmware/dmi_scan.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 35ed56b9c34f..202bd2c69d0f 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -181,6 +181,32 @@ static void __init dmi_save_ident(const struct dmi_header *dm, int slot, dmi_ident[slot] = p; } +static void __init dmi_save_release(const struct dmi_header *dm, int slot, + int index) +{ + const u8 *d; + char *s; + + // If the table doesn't have the field, let's return + if (dmi_ident[slot] || dm->length < index) + return; + + d = (u8 *) dm + index; + + // As per the specification, + // if the system doesn't have the field, the value is FF + if (d[0] == 0xFF) + return; + + s = dmi_alloc(4); + if (!s) + return; + + sprintf(s, "%u", d[0]); + + dmi_ident[slot] = s; +} + static void __init dmi_save_uuid(const struct dmi_header *dm, int slot, int index) { -- 2.21.0
