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Groups > linux.kernel > #1296826
| From | Matt Fleming <matt@codeblueprint.co.uk> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/1] dmi_scan: uuid: fix endianess for smbios >= 0x206 |
| Date | 2015-12-22 16:20 +0100 |
| Message-ID | <qIwTg-5Bi-3@gated-at.bofh.it> (permalink) |
| References | <qIvDP-4ET-1@gated-at.bofh.it> <qIvDQ-4ET-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
(Cc'ing Jean since he's the maintainer)
On Tue, 22 Dec, at 02:53:10PM, Andrea Arcangeli wrote:
> 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>
> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
> ---
> drivers/firmware/dmi_scan.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
> index ac1ce4a..0e08e66 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;
--
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[PATCH 0/1] dmi_scan: uuid: fix endianess for smbios >= 0x206 Andrea Arcangeli <aarcange@redhat.com> - 2015-12-22 15:00 +0100
[PATCH 1/1] dmi_scan: uuid: fix endianess for smbios >= 0x206 Andrea Arcangeli <aarcange@redhat.com> - 2015-12-22 15:00 +0100
Re: [PATCH 1/1] dmi_scan: uuid: fix endianess for smbios >= 0x206 Matt Fleming <matt@codeblueprint.co.uk> - 2015-12-22 16:20 +0100
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