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authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-16 05:12:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-16 05:12:18 +0300
commitd45187aaf0e256d23da2f7694a7826524499aa31 (patch)
tree6f3075ba02bb8e1efc4e590deef654df8868e6a9 /drivers/firmware
parent4e5448a31d73d0e944b7adb9049438a09bc332cb (diff)
parente5b6c1518878e157df4121c1caf70d9c470a6d31 (diff)
downloadlinux-d45187aaf0e256d23da2f7694a7826524499aa31.tar.xz
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: Save SMBIOS Type 9 System Slots firmware: dmi_scan: Fix dmi_find_device description firmware: dmi_scan: Clarify dmi_save_extended_devices firmware: dmi_scan: Optimize dmi_save_extended_devices
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/dmi_scan.c62
1 files changed, 42 insertions, 20 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 0e08e665f715..88bebe1968b7 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -321,39 +321,58 @@ static void __init dmi_save_ipmi_device(const struct dmi_header *dm)
list_add_tail(&dev->list, &dmi_devices);
}
-static void __init dmi_save_dev_onboard(int instance, int segment, int bus,
- int devfn, const char *name)
+static void __init dmi_save_dev_pciaddr(int instance, int segment, int bus,
+ int devfn, const char *name, int type)
{
- struct dmi_dev_onboard *onboard_dev;
+ struct dmi_dev_onboard *dev;
- onboard_dev = dmi_alloc(sizeof(*onboard_dev) + strlen(name) + 1);
- if (!onboard_dev)
+ /* Ignore invalid values */
+ if (type == DMI_DEV_TYPE_DEV_SLOT &&
+ segment == 0xFFFF && bus == 0xFF && devfn == 0xFF)
return;
- onboard_dev->instance = instance;
- onboard_dev->segment = segment;
- onboard_dev->bus = bus;
- onboard_dev->devfn = devfn;
+ dev = dmi_alloc(sizeof(*dev) + strlen(name) + 1);
+ if (!dev)
+ return;
- strcpy((char *)&onboard_dev[1], name);
- onboard_dev->dev.type = DMI_DEV_TYPE_DEV_ONBOARD;
- onboard_dev->dev.name = (char *)&onboard_dev[1];
- onboard_dev->dev.device_data = onboard_dev;
+ dev->instance = instance;
+ dev->segment = segment;
+ dev->bus = bus;
+ dev->devfn = devfn;
- list_add(&onboard_dev->dev.list, &dmi_devices);
+ strcpy((char *)&dev[1], name);
+ dev->dev.type = type;
+ dev->dev.name = (char *)&dev[1];
+ dev->dev.device_data = dev;
+
+ list_add(&dev->dev.list, &dmi_devices);
}
static void __init dmi_save_extended_devices(const struct dmi_header *dm)
{
- const u8 *d = (u8 *) dm + 5;
+ const char *name;
+ const u8 *d = (u8 *)dm;
/* Skip disabled device */
- if ((*d & 0x80) == 0)
+ if ((d[0x5] & 0x80) == 0)
return;
- dmi_save_dev_onboard(*(d+1), *(u16 *)(d+2), *(d+4), *(d+5),
- dmi_string_nosave(dm, *(d-1)));
- dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d - 1)));
+ name = dmi_string_nosave(dm, d[0x4]);
+ dmi_save_dev_pciaddr(d[0x6], *(u16 *)(d + 0x7), d[0x9], d[0xA], name,
+ DMI_DEV_TYPE_DEV_ONBOARD);
+ dmi_save_one_device(d[0x5] & 0x7f, name);
+}
+
+static void __init dmi_save_system_slot(const struct dmi_header *dm)
+{
+ const u8 *d = (u8 *)dm;
+
+ /* Need SMBIOS 2.6+ structure */
+ if (dm->length < 0x11)
+ return;
+ dmi_save_dev_pciaddr(*(u16 *)(d + 0x9), *(u16 *)(d + 0xD), d[0xF],
+ d[0x10], dmi_string_nosave(dm, d[0x4]),
+ DMI_DEV_TYPE_DEV_SLOT);
}
static void __init count_mem_devices(const struct dmi_header *dm, void *v)
@@ -426,6 +445,9 @@ static void __init dmi_decode(const struct dmi_header *dm, void *dummy)
dmi_save_ident(dm, DMI_CHASSIS_SERIAL, 7);
dmi_save_ident(dm, DMI_CHASSIS_ASSET_TAG, 8);
break;
+ case 9: /* System Slots */
+ dmi_save_system_slot(dm);
+ break;
case 10: /* Onboard Devices Information */
dmi_save_devices(dm);
break;
@@ -869,7 +891,7 @@ EXPORT_SYMBOL(dmi_name_in_vendors);
* @from: previous device found in search, or %NULL for new search.
*
* Iterates through the list of known onboard devices. If a device is
- * found with a matching @vendor and @device, a pointer to its device
+ * found with a matching @type and @name, a pointer to its device
* structure is returned. Otherwise, %NULL is returned.
* A new search is initiated by passing %NULL as the @from argument.
* If @from is not %NULL, searches continue from next device.