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| author | Andrea Arcangeli <aarcange@redhat.com> | 2016-01-08 09:00:54 +0100 |
|---|---|---|
| committer | Jean Delvare <jdelvare@suse.de> | 2016-01-08 09:00:54 +0100 |
| commit | ff4319dc7cd58c92b389960e375038335d157a60 (patch) | |
| tree | 39e366e6730e9ddd784ed601d22192bf403ede13 /drivers | |
| parent | 02006f7a7a715af10974a30b7ad8e6ee340f954c (diff) | |
| download | linux-stable-ff4319dc7cd58c92b389960e375038335d157a60.tar.gz linux-stable-ff4319dc7cd58c92b389960e375038335d157a60.tar.bz2 linux-stable-ff4319dc7cd58c92b389960e375038335d157a60.zip | |
firmware: dmi_scan: Fix UUID endianness for SMBIOS >= 2.6
The dmi_ver wasn't updated correctly before the dmi_decode method run
to save the uuid.
That resulted in "dmidecode -s system-uuid" and
/sys/class/dmi/id/product_uuid disagreeing. The latter was buggy and
this fixes it.
Reported-by: Federico Simoncelli <fsimonce@redhat.com>
Fixes: 9f9c9cbb6057 ("drivers/firmware/dmi_scan.c: fetch dmi version from SMBIOS if it exists")
Fixes: 79bae42d51a5 ("dmi_scan: refactor dmi_scan_machine(), {smbios,dmi}_present()")
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index ac1ce4a73edf..0e08e665f715 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -521,6 +521,7 @@ static int __init dmi_present(const u8 *buf) dmi_ver = smbios_ver; else dmi_ver = (buf[14] & 0xF0) << 4 | (buf[14] & 0x0F); + dmi_ver <<= 8; dmi_num = get_unaligned_le16(buf + 12); dmi_len = get_unaligned_le16(buf + 6); dmi_base = get_unaligned_le32(buf + 8); @@ -528,15 +529,14 @@ static int __init dmi_present(const u8 *buf) if (dmi_walk_early(dmi_decode) == 0) { if (smbios_ver) { pr_info("SMBIOS %d.%d present.\n", - dmi_ver >> 8, dmi_ver & 0xFF); + dmi_ver >> 16, (dmi_ver >> 8) & 0xFF); } else { smbios_entry_point_size = 15; memcpy(smbios_entry_point, buf, smbios_entry_point_size); pr_info("Legacy DMI %d.%d present.\n", - dmi_ver >> 8, dmi_ver & 0xFF); + dmi_ver >> 16, (dmi_ver >> 8) & 0xFF); } - dmi_ver <<= 8; dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string)); printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string); return 0; |