New SMBIOS3 spec adds additional field for versioning - docrev. The docrev identifies the revision of a specification implemented in the table structures, so display SMBIOS version > 3 in format, like: 3.22.1
It's not affect on other part of code because version number is analyzed using comparing, and it's obvious that 0x000208 is less than 0x030201 for example.
Signed-off-by: Ivan Khoronzhuk ivan.khoronzhuk@linaro.org --- drivers/firmware/dmi_scan.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 657ae0c..54d52e7 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -17,7 +17,7 @@ */ static const char dmi_empty_string[] = " ";
-static u16 __initdata dmi_ver; +static u32 dmi_ver __initdata; /* * Catch too early calls to dmi_check_system(): */ @@ -526,9 +526,15 @@ static int __init dmi_present(const u8 *buf) */ static int __init dmi_smbios3_present(const u8 *buf) { + u8 ver[4]; + if (memcmp(buf, "_SM3_", 5) == 0 && buf[6] < 32 && dmi_checksum(buf, buf[6])) { - dmi_ver = get_unaligned_be16(buf + 7); + ver[0] = 0; + ver[1] = buf[7]; + ver[2] = buf[8]; + ver[3] = buf[9]; + dmi_ver = get_unaligned_be32(ver); dmi_len = get_unaligned_le32(buf + 12); dmi_base = get_unaligned_le64(buf + 16);
@@ -545,7 +551,8 @@ static int __init dmi_smbios3_present(const u8 *buf) dmi_num = dmi_len / 4;
if (dmi_walk_early(dmi_decode) == 0) { - pr_info("SMBIOS %d.%d present.\n", buf[7], buf[8]); + pr_info("SMBIOS %d.%d.%d present.\n", + ver[1], ver[2], ver[3]); dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string)); pr_debug("DMI: %s\n", dmi_ids_string); return 0;