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Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 

Pull dmi updates from Jean Delvare.

* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  firmware: dmi_scan: Use lowercase letters for UUID
  firmware: dmi_scan: Add DMI_OEM_STRING support to dmi_matches
  firmware: dmi_scan: Fix UUID length safety check
This commit is contained in:
Linus Torvalds 2018-04-13 16:32:16 -07:00
parent f6811370b9 712ff25450
commit 71893f1161
2 changed files with 13 additions and 4 deletions
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16
drivers/firmware/dmi_scan.c
View File

@ -187,7 +187,7 @@ static void __init dmi_save_uuid(const struct dmi_header *dm, int slot,
char *s; char *s;
int is_ff = 1, is_00 = 1, i; int is_ff = 1, is_00 = 1, i;
if (dmi_ident[slot] || dm->length <= index + 16) if (dmi_ident[slot] || dm->length < index + 16)
return; return;
d = (u8 *) dm + index; d = (u8 *) dm + index;
@ -211,9 +211,9 @@ static void __init dmi_save_uuid(const struct dmi_header *dm, int slot,
* says that this is the defacto standard. * says that this is the defacto standard.
*/ */
if (dmi_ver >= 0x020600) if (dmi_ver >= 0x020600)
sprintf(s, "%pUL", d); sprintf(s, "%pUl", d);
else else
sprintf(s, "%pUB", d); sprintf(s, "%pUb", d);
dmi_ident[slot] = s; dmi_ident[slot] = s;
} }
@ -792,7 +792,15 @@ static bool dmi_matches(const struct dmi_system_id *dmi)
int s = dmi->matches[i].slot; int s = dmi->matches[i].slot;
if (s == DMI_NONE) if (s == DMI_NONE)
break; break;
if (dmi_ident[s]) { if (s == DMI_OEM_STRING) {
/* DMI_OEM_STRING must be exact match */
const struct dmi_device *valid;
valid = dmi_find_device(DMI_DEV_TYPE_OEM_STRING,
dmi->matches[i].substr, NULL);
if (valid)
continue;
} else if (dmi_ident[s]) {
if (dmi->matches[i].exact_match) { if (dmi->matches[i].exact_match) {
if (!strcmp(dmi_ident[s], if (!strcmp(dmi_ident[s],
dmi->matches[i].substr)) dmi->matches[i].substr))

1
include/linux/mod_devicetable.h
View File

@ -502,6 +502,7 @@ enum dmi_field {
DMI_CHASSIS_SERIAL, DMI_CHASSIS_SERIAL,
DMI_CHASSIS_ASSET_TAG, DMI_CHASSIS_ASSET_TAG,
DMI_STRING_MAX, DMI_STRING_MAX,
DMI_OEM_STRING, /* special case - will not be in dmi_ident */
}; };
struct dmi_strmatch { struct dmi_strmatch {