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[PATCH v4 0/4] dmi: Rework to get IPMI autoloading from DMI tables

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  [PATCH v4 0/4] dmi: Rework to get IPMI autoloading from DMI tables minyard@acm.org - 2016-07-14 18:40 +0200
    [PATCH v4 1/4] dmi: remove const from return of dmi_find_device minyard@acm.org - 2016-07-14 18:40 +0200
    [PATCH v4 4/4] dmi: Add IPMI DMI devices as platform devices minyard@acm.org - 2016-07-14 18:40 +0200

#1443582 — [PATCH v4 0/4] dmi: Rework to get IPMI autoloading from DMI tables

No changes at all, just rebasing on current kernel.org and hoping
it gets approved and/or put into a subsystem tree.

-corey

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#1443584 — [PATCH v4 1/4] dmi: remove const from return of dmi_find_device

From: Corey Minyard <cminyard@mvista.com>

A fwnode_handle is being added to dmi_device, and that will need to
be updated.  So remove the const.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Tested-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/firmware/dmi_scan.c | 11 +++++------
 include/linux/dmi.h         | 10 +++++-----
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 88bebe1..da471b2 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -896,14 +896,13 @@ EXPORT_SYMBOL(dmi_name_in_vendors);
  *	A new search is initiated by passing %NULL as the @from argument.
  *	If @from is not %NULL, searches continue from next device.
  */
-const struct dmi_device *dmi_find_device(int type, const char *name,
-				    const struct dmi_device *from)
+struct dmi_device *dmi_find_device(int type, const char *name,
+				   const struct dmi_device *from)
 {
-	const struct list_head *head = from ? &from->list : &dmi_devices;
-	struct list_head *d;
+	struct list_head *d = from ? from->list.next : dmi_devices.next;
 
-	for (d = head->next; d != &dmi_devices; d = d->next) {
-		const struct dmi_device *dev =
+	for (; d != &dmi_devices; d = d->next) {
+		struct dmi_device *dev =
 			list_entry(d, struct dmi_device, list);
 
 		if (((type == DMI_DEV_TYPE_ANY) || (dev->type == type)) &&
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 5e9c74c..a930a4d 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -98,9 +98,9 @@ struct dmi_dev_onboard {
 extern struct kobject *dmi_kobj;
 extern int dmi_check_system(const struct dmi_system_id *list);
 const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list);
-extern const char * dmi_get_system_info(int field);
-extern const struct dmi_device * dmi_find_device(int type, const char *name,
-	const struct dmi_device *from);
+extern const char *dmi_get_system_info(int field);
+extern struct dmi_device *dmi_find_device(int type, const char *name,
+	 const struct dmi_device *from);
 extern void dmi_scan_machine(void);
 extern void dmi_memdev_walk(void);
 extern void dmi_set_dump_stack_arch_desc(void);
@@ -116,8 +116,8 @@ extern void dmi_memdev_name(u16 handle, const char **bank, const char **device);
 #else
 
 static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; }
-static inline const char * dmi_get_system_info(int field) { return NULL; }
-static inline const struct dmi_device * dmi_find_device(int type, const char *name,
+static inline const char *dmi_get_system_info(int field) { return NULL; }
+static inline struct dmi_device *dmi_find_device(int type, const char *name,
 	const struct dmi_device *from) { return NULL; }
 static inline void dmi_scan_machine(void) { return; }
 static inline void dmi_memdev_walk(void) { }
-- 
2.7.4

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#1443585 — [PATCH v4 4/4] dmi: Add IPMI DMI devices as platform devices

From: Corey Minyard <cminyard@mvista.com>

Have DMI create a platform device for every IPMI device it
finds.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Tested-by: Andy Lutomirski <luto@kernel.org>
---
 drivers/firmware/dmi_scan.c | 55 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 53 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 16e5174..6a9598b 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -7,6 +7,7 @@
 #include <linux/efi.h>
 #include <linux/bootmem.h>
 #include <linux/random.h>
+#include <linux/platform_device.h>
 #include <asm/dmi.h>
 #include <asm/unaligned.h>
 
@@ -783,6 +784,52 @@ static ssize_t raw_table_read(struct file *file, struct kobject *kobj,
 	return count;
 }
 
+static void __init dmi_add_platform_ipmi(struct dmi_device *dev, int *nr)
+{
+	struct platform_device *pdev;
+	struct dmi_dev_ipmi *ipmi_dev = to_dmi_dev_ipmi(dev);
+	int rv;
+
+	if (!ipmi_dev->good_data) {
+		pr_err("dmi: Invalid IPMI data, not creating platform device");
+		return;
+	}
+
+	if (ipmi_dev->type == IPMI_DMI_TYPE_SSIF)
+		pdev = platform_device_alloc("dmi-ipmi-ssif", *nr);
+	else
+		pdev = platform_device_alloc("dmi-ipmi-si", *nr);
+	if (!pdev) {
+		pr_err("dmi: Error allocation IPMI platform device");
+		return;
+	}
+	if (ipmi_dev->type == IPMI_DMI_TYPE_SSIF)
+		pdev->driver_override = "ipmi_ssif";
+	else
+		pdev->driver_override = "ipmi_si";
+
+	pdev->dev.fwnode = &dev->fwnode;
+	rv = platform_device_add(pdev);
+	if (rv) {
+		dev_err(&pdev->dev, "dmi: Unable to add device: %d\n", rv);
+		platform_device_del(pdev);
+		return;
+	}
+
+	(*nr)++;
+}
+
+static void __init dmi_add_platform_devices(void)
+{
+	struct dmi_device *dev;
+	int nr_ipmi = 0;
+
+	list_for_each_entry(dev, &dmi_devices, list) {
+		if (dev->type == DMI_DEV_TYPE_IPMI)
+			dmi_add_platform_ipmi(dev, &nr_ipmi);
+	}
+}
+
 static BIN_ATTR(smbios_entry_point, S_IRUSR, raw_table_read, NULL, 0);
 static BIN_ATTR(DMI, S_IRUSR, raw_table_read, NULL, 0);
 
@@ -823,9 +870,13 @@ static int __init dmi_init(void)
 	bin_attr_DMI.size = dmi_len;
 	bin_attr_DMI.private = dmi_table;
 	ret = sysfs_create_bin_file(tables_kobj, &bin_attr_DMI);
-	if (!ret)
-		return 0;
+	if (ret)
+		goto out_remove_bin_file;
+
+	dmi_add_platform_devices();
+	return 0;
 
+ out_remove_bin_file:
 	sysfs_remove_bin_file(tables_kobj,
 			      &bin_attr_smbios_entry_point);
  err_unmap:
-- 
2.7.4

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