Message-ID: <5B8DA87D05A7694D9FA63FD143655C1B749D02E9@hasmsx108.ger.corp.intel.com>
Date:   Tue, 25 Jul 2017 10:25:21 +0000
From:   "Winkler, Tomas" <tomas.winkler@...el.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     "Usyskin, Alexander" <alexander.usyskin@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Samuel Ortiz <sameo@...ux.intel.com>
Subject: RE: [PATCH v2 2/6] mei: Switch to use new generic UUID API

> 
> On Tue, 2017-07-25 at 00:12 +0300, Tomas Winkler wrote:
> > From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> >
> > There are new types and helpers that are supposed to be used in new
> > code.
> >
> > As a preparation to get rid of legacy types and API functions do the
> > conversion here.
> >
> > Cc: Tomas Winkler <tomas.winkler@...el.com>
> > Cc: Guenter Roeck <linux@...ck-us.net>
> > Cc: Samuel Ortiz <sameo@...ux.intel.com>
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
> > ---
> 
> 
> > V2:
> >     1. Fixed file2alias compilation breakage
> >     2. Dropped amt version sample from the patch
> >        a. We need to see yet how to not break all our user space.
> >        c. It had some checkpatch issues.
> 
> Thanks, though I didn't get a context.
Sorry, not sure what you are referring... 

Once the kernel hasn't compiled, second I'm not very happy about this guid renaming. I understand the motivations but we have user space API named uuid out there. Now we have guid/uuid mix mess. I don't see it as an improvement. 
Last looks like amt version wasn't dropped it was left out of the index, late hour commit :(

> Is it supposed to be injected in my patch series instead of what I have as
> patch 2?

Hmm, yes, though you didn't send me the rest of the series so I hope it's okay. 

> 
> >
> > Still this is naming mess will require addition re-spin
> >
> >  drivers/misc/mei/bus-fixup.c    | 35 +++++++++++++++++++-------------
> > ---
> >  drivers/misc/mei/bus.c          | 14 +++++++-------
> >  drivers/misc/mei/client.c       | 21 ++++++++++-----------
> >  drivers/misc/mei/client.h       | 12 ++++++------
> >  drivers/misc/mei/hbm.c          |  2 +-
> >  drivers/misc/mei/hw.h           |  2 +-
> >  drivers/misc/mei/main.c         |  2 +-
> >  drivers/nfc/mei_phy.h           |  5 +++--
> >  drivers/watchdog/mei_wdt.c      |  5 +++--
> >  include/linux/mei_cl_bus.h      |  2 +-
> >  include/linux/mod_devicetable.h |  8 ++++----
> >  include/uapi/linux/mei.h        |  4 +---
> >  samples/mei/mei-amt-version.c   | 23 ++++++++++++++++++-----
> >  scripts/mod/file2alias.c        |  6 +++---
> >  14 files changed, 78 insertions(+), 63 deletions(-)
> >
> > diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-
> > fixup.c index 0208c4b027c5..9eaac4f2d427 100644
> > --- a/drivers/misc/mei/bus-fixup.c
> > +++ b/drivers/misc/mei/bus-fixup.c
> > @@ -27,21 +27,27 @@
> >  #include "mei_dev.h"
> >  #include "client.h"
> >
> > -#define MEI_UUID_NFC_INFO UUID_LE(0xd2de1625, 0x382d, 0x417d, \
> > -			0x48, 0xa4, 0xef, 0xab, 0xba, 0x8a, 0x12,
> > 0x06)
> > +#define MEI_UUID_NFC_INFO
> 
> > \
> > +	GUID_INIT(0xd2de1625, 0x382d, 0x417d,
> 
> > \
> > +		  0x48, 0xa4, 0xef, 0xab, 0xba, 0x8a, 0x12, 0x06)
> >
> > -static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO;
> > +static const guid_t mei_nfc_info_guid = MEI_UUID_NFC_INFO;
> >
> > -#define MEI_UUID_NFC_HCI UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \
> > -			0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77,
> > 0x5c)
> > +#define MEI_UUID_NFC_HCI
> > \
> > +	GUID_INIT(0x0bb17a78, 0x2a8e, 0x4c50,
> 
> > \
> > +		  0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
> >
> > -#define MEI_UUID_WD UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, \
> > -			    0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32,
> > 0xAB)
> > +#define MEI_UUID_WD
> 
> > \
> > +	GUID_INIT(0x05B79A6F, 0x4628, 0x4D7F,
> 
> > \
> > +		  0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32, 0xAB)
> >
> > -#define MEI_UUID_MKHIF_FIX UUID_LE(0x55213584, 0x9a29, 0x4916, \
> > -			0xba, 0xdf, 0xf, 0xb7, 0xed, 0x68, 0x2a,
> > 0xeb)
> > +#define MEI_UUID_MKHIF_FIX
> 
> > \
> > +	GUID_INIT(0x55213584, 0x9a29, 0x4916,
> 
> > \
> > +		  0xba, 0xdf, 0x0f, 0xb7, 0xed, 0x68, 0x2a, 0xeb)
> >
> > -#define MEI_UUID_ANY NULL_UUID_LE
> > +#define MEI_UUID_ANY
> 
> > \
> > +	GUID_INIT(0x00000000, 0x0000, 0x0000,
> 
> > \
> > +		  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
> >
> >  /**
> >   * number_of_connections - determine whether an client be on the bus
> > @@ -391,7 +397,7 @@ static void mei_nfc(struct mei_cl_device *cldev)
> >
> >  static struct mei_fixup {
> >
> > -	const uuid_le uuid;
> > +	const guid_t uuid;
> >  	void (*hook)(struct mei_cl_device *cldev);
> >  } mei_fixups[] = {
> >  	MEI_FIXUP(MEI_UUID_ANY, number_of_connections), @@ -409,15
> +415,12
> > @@ static struct mei_fixup {
> >  void mei_cl_bus_dev_fixup(struct mei_cl_device *cldev)
> >  {
> >  	struct mei_fixup *f;
> > -	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
> > +	const guid_t *uuid = mei_me_cl_uuid(cldev->me_cl);
> >  	int i;
> >
> >  	for (i = 0; i < ARRAY_SIZE(mei_fixups); i++) {
> > -
> >  		f = &mei_fixups[i];
> > -		if (uuid_le_cmp(f->uuid, MEI_UUID_ANY) == 0 ||
> > -		    uuid_le_cmp(f->uuid, *uuid) == 0)
> > +		if (guid_is_null(&f->uuid) || guid_equal(&f->uuid,
> > uuid))
> >  			f->hook(cldev);
> >  	}
> >  }
> > -
> > diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index
> > 40c79089e548..c5165f2ec842 100644
> > --- a/drivers/misc/mei/bus.c
> > +++ b/drivers/misc/mei/bus.c
> > @@ -417,7 +417,7 @@ EXPORT_SYMBOL_GPL(mei_cldev_set_drvdata);
> >   *
> >   * Return: me client uuid
> >   */
> > -const uuid_le *mei_cldev_uuid(const struct mei_cl_device *cldev)
> > +const guid_t *mei_cldev_uuid(const struct mei_cl_device *cldev)
> >  {
> >  	return mei_me_cl_uuid(cldev->me_cl);
> >  }
> > @@ -606,7 +606,7 @@ struct mei_cl_device_id *mei_cl_device_find(struct
> > mei_cl_device *cldev,
> >  					    struct mei_cl_driver
> > *cldrv)
> >  {
> >  	const struct mei_cl_device_id *id;
> > -	const uuid_le *uuid;
> > +	const guid_t *uuid;
> >  	u8 version;
> >  	bool match;
> >
> > @@ -614,8 +614,8 @@ struct mei_cl_device_id *mei_cl_device_find(struct
> > mei_cl_device *cldev,
> >  	version = mei_me_cl_ver(cldev->me_cl);
> >
> >  	id = cldrv->id_table;
> > -	while (uuid_le_cmp(NULL_UUID_LE, id->uuid)) {
> > -		if (!uuid_le_cmp(*uuid, id->uuid)) {
> > +	while (!guid_is_null(&id->uuid)) {
> > +		if (guid_equal(uuid, &id->uuid)) {
> >  			match = true;
> >
> >  			if (cldev->name[0])
> > @@ -742,7 +742,7 @@ static ssize_t uuid_show(struct device *dev,
> > struct device_attribute *a,
> >  			     char *buf)
> >  {
> >  	struct mei_cl_device *cldev = to_mei_cl_device(dev);
> > -	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
> > +	const guid_t *uuid = mei_me_cl_uuid(cldev->me_cl);
> >
> >  	return scnprintf(buf, PAGE_SIZE, "%pUl", uuid);
> >  }
> > @@ -762,7 +762,7 @@ static ssize_t modalias_show(struct device *dev,
> > struct device_attribute *a,
> >  			     char *buf)
> >  {
> >  	struct mei_cl_device *cldev = to_mei_cl_device(dev);
> > -	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
> > +	const guid_t *uuid = mei_me_cl_uuid(cldev->me_cl);
> >  	u8 version = mei_me_cl_ver(cldev->me_cl);
> >
> >  	return scnprintf(buf, PAGE_SIZE, "mei:%s:%pUl:%02X:", @@ -790,7
> > +790,7 @@ ATTRIBUTE_GROUPS(mei_cldev);
> >  static int mei_cl_device_uevent(struct device *dev, struct
> > kobj_uevent_env *env)
> >  {
> >  	struct mei_cl_device *cldev = to_mei_cl_device(dev);
> > -	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
> > +	const guid_t *uuid = mei_me_cl_uuid(cldev->me_cl);
> >  	u8 version = mei_me_cl_ver(cldev->me_cl);
> >
> >  	if (add_uevent_var(env, "MEI_CL_VERSION=%d", version)) diff --git
> > a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index
> > be64969d986a..a44fb96452a9 100644
> > --- a/drivers/misc/mei/client.c
> > +++ b/drivers/misc/mei/client.c
> > @@ -139,16 +139,16 @@ void mei_me_cl_add(struct mei_device *dev,
> > struct mei_me_client *me_cl)
> >   * Locking: dev->me_clients_rwsem
> >   */
> >  static struct mei_me_client *__mei_me_cl_by_uuid(struct mei_device
> > *dev,
> > -					const uuid_le *uuid)
> > +					const guid_t *uuid)
> >  {
> >  	struct mei_me_client *me_cl;
> > -	const uuid_le *pn;
> > +	const guid_t *pn;
> >
> >  	WARN_ON(!rwsem_is_locked(&dev->me_clients_rwsem));
> >
> >  	list_for_each_entry(me_cl, &dev->me_clients, list) {
> >  		pn = &me_cl->props.protocol_name;
> > -		if (uuid_le_cmp(*uuid, *pn) == 0)
> > +		if (guid_equal(uuid, pn))
> >  			return mei_me_cl_get(me_cl);
> >  	}
> >
> > @@ -167,7 +167,7 @@ static struct mei_me_client
> > *__mei_me_cl_by_uuid(struct mei_device *dev,
> >   * Locking: dev->me_clients_rwsem
> >   */
> >  struct mei_me_client *mei_me_cl_by_uuid(struct mei_device *dev,
> > -					const uuid_le *uuid)
> > +					const guid_t *uuid)
> >  {
> >  	struct mei_me_client *me_cl;
> >
> > @@ -219,17 +219,16 @@ struct mei_me_client *mei_me_cl_by_id(struct
> > mei_device *dev, u8 client_id)
> >   * Locking: dev->me_clients_rwsem
> >   */
> >  static struct mei_me_client *__mei_me_cl_by_uuid_id(struct mei_device
> > *dev,
> > -					   const uuid_le *uuid, u8
> > client_id)
> > +					   const guid_t *uuid, u8
> > client_id)
> >  {
> >  	struct mei_me_client *me_cl;
> > -	const uuid_le *pn;
> > +	const guid_t *pn;
> >
> >  	WARN_ON(!rwsem_is_locked(&dev->me_clients_rwsem));
> >
> >  	list_for_each_entry(me_cl, &dev->me_clients, list) {
> >  		pn = &me_cl->props.protocol_name;
> > -		if (uuid_le_cmp(*uuid, *pn) == 0 &&
> > -		    me_cl->client_id == client_id)
> > +		if (guid_equal(uuid, pn) && me_cl->client_id ==
> > client_id)
> >  			return mei_me_cl_get(me_cl);
> >  	}
> >
> > @@ -248,7 +247,7 @@ static struct mei_me_client
> > *__mei_me_cl_by_uuid_id(struct mei_device *dev,
> >   * Return: me client or null if not found
> >   */
> >  struct mei_me_client *mei_me_cl_by_uuid_id(struct mei_device *dev,
> > -					   const uuid_le *uuid, u8
> > client_id)
> > +					   const guid_t *uuid, u8
> > client_id)
> >  {
> >  	struct mei_me_client *me_cl;
> >
> > @@ -267,7 +266,7 @@ struct mei_me_client
> *mei_me_cl_by_uuid_id(struct
> > mei_device *dev,
> >   *
> >   * Locking: called under "dev->device_lock" lock
> >   */
> > -void mei_me_cl_rm_by_uuid(struct mei_device *dev, const uuid_le
> > *uuid)
> > +void mei_me_cl_rm_by_uuid(struct mei_device *dev, const guid_t *uuid)
> >  {
> >  	struct mei_me_client *me_cl;
> >
> > @@ -288,7 +287,7 @@ void mei_me_cl_rm_by_uuid(struct mei_device
> *dev,
> > const uuid_le *uuid)
> >   *
> >   * Locking: called under "dev->device_lock" lock
> >   */
> > -void mei_me_cl_rm_by_uuid_id(struct mei_device *dev, const uuid_le
> > *uuid, u8 id)
> > +void mei_me_cl_rm_by_uuid_id(struct mei_device *dev, const guid_t
> > *uuid, u8 id)
> >  {
> >  	struct mei_me_client *me_cl;
> >
> > diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
> > index 5371df4d8af3..5d996e1e39fa 100644
> > --- a/drivers/misc/mei/client.h
> > +++ b/drivers/misc/mei/client.h
> > @@ -34,13 +34,13 @@ void mei_me_cl_add(struct mei_device *dev, struct
> > mei_me_client *me_cl);
> >  void mei_me_cl_del(struct mei_device *dev, struct mei_me_client
> > *me_cl);
> >
> >  struct mei_me_client *mei_me_cl_by_uuid(struct mei_device *dev,
> > -					const uuid_le *uuid);
> > +					const guid_t *uuid);
> >  struct mei_me_client *mei_me_cl_by_id(struct mei_device *dev, u8
> > client_id);
> >  struct mei_me_client *mei_me_cl_by_uuid_id(struct mei_device *dev,
> > -					   const uuid_le *uuid, u8
> > client_id);
> > -void mei_me_cl_rm_by_uuid(struct mei_device *dev, const uuid_le
> > *uuid);
> > +					   const guid_t *uuid, u8
> > client_id);
> > +void mei_me_cl_rm_by_uuid(struct mei_device *dev, const guid_t
> > *uuid);
> >  void mei_me_cl_rm_by_uuid_id(struct mei_device *dev,
> > -			     const uuid_le *uuid, u8 id);
> > +			     const guid_t *uuid, u8 id);
> >  void mei_me_cl_rm_all(struct mei_device *dev);
> >
> >  /**
> > @@ -62,7 +62,7 @@ static inline bool mei_me_cl_is_active(const struct
> > mei_me_client *me_cl)
> >   *
> >   * Return: me client protocol name
> >   */
> > -static inline const uuid_le *mei_me_cl_uuid(const struct
> > mei_me_client *me_cl)
> > +static inline const guid_t *mei_me_cl_uuid(const struct mei_me_client
> > *me_cl)
> >  {
> >  	return &me_cl->props.protocol_name;
> >  }
> > @@ -177,7 +177,7 @@ static inline bool mei_cl_is_single_recv_buf(const
> > struct mei_cl *cl)
> >   *
> >   * Return: return uuid of connected me client
> >   */
> > -static inline const uuid_le *mei_cl_uuid(const struct mei_cl *cl)
> > +static inline const guid_t *mei_cl_uuid(const struct mei_cl *cl)
> >  {
> >  	return mei_me_cl_uuid(cl->me_cl);
> >  }
> > diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index
> > fe6595fe94f1..059b8dfef67b 100644
> > --- a/drivers/misc/mei/hbm.c
> > +++ b/drivers/misc/mei/hbm.c
> > @@ -329,7 +329,7 @@ static int mei_hbm_me_cl_add(struct mei_device
> > *dev,
> >  			     struct hbm_props_response *res)
> >  {
> >  	struct mei_me_client *me_cl;
> > -	const uuid_le *uuid = &res->client_properties.protocol_name;
> > +	const guid_t *uuid = &res->client_properties.protocol_name;
> >
> >  	mei_me_cl_rm_by_uuid(dev, uuid);
> >
> > diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index
> > 5c8286b40b62..e061f449ea75 100644
> > --- a/drivers/misc/mei/hw.h
> > +++ b/drivers/misc/mei/hw.h
> > @@ -288,7 +288,7 @@ struct hbm_host_enum_response {
> >  } __packed;
> >
> >  struct mei_client_properties {
> > -	uuid_le protocol_name;
> > +	guid_t protocol_name;
> >  	u8 protocol_version;
> >  	u8 max_number_of_connections;
> >  	u8 fixed_address;
> > diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index
> > e825f013e54e..be576c625f9f 100644
> > --- a/drivers/misc/mei/main.c
> > +++ b/drivers/misc/mei/main.c
> > @@ -342,7 +342,7 @@ static int mei_ioctl_connect_client(struct file
> > *file,
> >  		return  -EBUSY;
> >
> >  	/* find ME client we're trying to connect to */
> > -	me_cl = mei_me_cl_by_uuid(dev, &data->in_client_uuid);
> > +	me_cl = mei_me_cl_by_uuid(dev, (guid_t *)&data-
> > >in_client_uuid);
> >  	if (!me_cl) {
> >  		dev_dbg(dev->dev, "Cannot connect to FW Client UUID =
> %pUl\n",
> >  			&data->in_client_uuid);
> > diff --git a/drivers/nfc/mei_phy.h b/drivers/nfc/mei_phy.h index
> > acd3a1fc69e6..bf4775a111e8 100644
> > --- a/drivers/nfc/mei_phy.h
> > +++ b/drivers/nfc/mei_phy.h
> > @@ -5,8 +5,9 @@
> >  #include <net/nfc/hci.h>
> >  #include <linux/uuid.h>
> >
> > -#define MEI_NFC_UUID UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \
> > -		0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
> > +#define MEI_NFC_UUID
> 
> > \
> > +	GUID_INIT(0x0bb17a78, 0x2a8e, 0x4c50,
> 
> > \
> > +		  0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
> >  #define MEI_NFC_HEADER_SIZE 10
> >  #define MEI_NFC_MAX_HCI_PAYLOAD 300
> >
> > diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c
> > index b29c6fde7473..a0f052a96913 100644
> > --- a/drivers/watchdog/mei_wdt.c
> > +++ b/drivers/watchdog/mei_wdt.c
> > @@ -667,8 +667,9 @@ static int mei_wdt_remove(struct mei_cl_device
> > *cldev)
> >  	return 0;
> >  }
> >
> > -#define MEI_UUID_WD UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, \
> > -			    0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32,
> > 0xAB)
> > +#define MEI_UUID_WD
> 
> > \
> > +	GUID_INIT(0x05B79A6F, 0x4628, 0x4D7F,
> 
> > \
> > +		  0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32, 0xAB)
> >
> >  static struct mei_cl_device_id mei_wdt_tbl[] = {
> >  	{ .uuid = MEI_UUID_WD, .version = MEI_CL_VERSION_ANY }, diff --git
> > a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h index
> > a0d274fe08f1..81a860bfd076 100644
> > --- a/include/linux/mei_cl_bus.h
> > +++ b/include/linux/mei_cl_bus.h
> > @@ -94,7 +94,7 @@ int mei_cldev_register_rx_cb(struct mei_cl_device
> > *cldev, mei_cldev_cb_t rx_cb);
> >  int mei_cldev_register_notif_cb(struct mei_cl_device *cldev,
> >  				mei_cldev_cb_t notif_cb);
> >
> > -const uuid_le *mei_cldev_uuid(const struct mei_cl_device *cldev);
> > +const guid_t *mei_cldev_uuid(const struct mei_cl_device *cldev);
> >  u8 mei_cldev_ver(const struct mei_cl_device *cldev);
> >
> >  void *mei_cldev_get_drvdata(const struct mei_cl_device *cldev); diff
> > --git a/include/linux/mod_devicetable.h
> > b/include/linux/mod_devicetable.h index 3f74ef2281e8..c36d274b7c91
> > 100644
> > --- a/include/linux/mod_devicetable.h
> > +++ b/include/linux/mod_devicetable.h
> > @@ -405,7 +405,7 @@ struct virtio_device_id {
> >   * For Hyper-V devices we use the device guid as the id.
> >   */
> >  struct hv_vmbus_device_id {
> > -	uuid_le guid;
> > +	guid_t guid;
> >  	kernel_ulong_t driver_data;	/* Data private to the
> > driver */
> >  };
> >
> > @@ -627,15 +627,15 @@ struct ipack_device_id {
> >  /**
> >   * struct mei_cl_device_id - MEI client device identifier
> >   * @name: helper name
> > - * @uuid: client uuid
> > + * @uuid: client GUID
> >   * @version: client protocol version
> >   * @driver_info: information used by the driver.
> >   *
> > - * identifies mei client device by uuid and name
> > + * identifies mei client device by GUID and name
> >   */
> >  struct mei_cl_device_id {
> >  	char name[MEI_CL_NAME_SIZE];
> > -	uuid_le uuid;
> > +	guid_t uuid;
> >  	__u8    version;
> >  	kernel_ulong_t driver_info;
> >  };
> > diff --git a/include/uapi/linux/mei.h b/include/uapi/linux/mei.h index
> > 7c3b64f6a215..cf02d56a13e6 100644
> > --- a/include/uapi/linux/mei.h
> > +++ b/include/uapi/linux/mei.h
> > @@ -67,8 +67,6 @@
> >  #ifndef _LINUX_MEI_H
> >  #define _LINUX_MEI_H
> >
> > -#include <linux/uuid.h>
> > -
> >  /*
> >   * This IOCTL is used to associate the current file descriptor with a
> >   * FW Client (given by UUID). This opens a communication channel @@
> > -102,7 +100,7 @@ struct mei_client {
> >   */
> >  struct mei_connect_client_data {
> >  	union {
> > -		uuid_le in_client_uuid;
> > +		__u8 in_client_uuid[16];
> >  		struct mei_client out_client_properties;
> >  	};
> >  };
> > diff --git a/samples/mei/mei-amt-version.c b/samples/mei/mei-amt-
> > version.c index 57d0d871dcf7..396915e37d3b 100644
> > --- a/samples/mei/mei-amt-version.c
> > +++ b/samples/mei/mei-amt-version.c
> > @@ -89,8 +89,20 @@
> >  	fprintf(stderr, "Error: " fmt, ##ARGS); \
> >  } while (0)
> >
> > +/* FIXME: Use libuuid instead */
> > +typedef struct {
> > +	__u8 b[16];
> > +} guid_t;
> > +
> > +#define GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
> > \
> > +((guid_t)
> > \
> > +{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) &
> > 0xff, \
> > +   (b) & 0xff, ((b) >> 8) & 0xff,
> > \
> > +   (c) & 0xff, ((c) >> 8) & 0xff,
> > \
> > +   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
> > +
> >  struct mei {
> > -	uuid_le guid;
> > +	guid_t guid;
> >  	bool initialized;
> >  	bool verbose;
> >  	unsigned int buf_size;
> > @@ -108,8 +120,8 @@ static void mei_deinit(struct mei *cl)
> >  	cl->initialized = false;
> >  }
> >
> > -static bool mei_init(struct mei *me, const uuid_le *guid,
> > -		unsigned char req_protocol_version, bool verbose)
> > +static bool mei_init(struct mei *me, const guid_t *guid,
> > +		     unsigned char req_protocol_version, bool
> > verbose)
> >  {
> >  	int result;
> >  	struct mei_client *cl;
> > @@ -270,8 +282,9 @@ struct amt_host_if_resp_header {
> >  	unsigned char data[0];
> >  } __attribute__((packed));
> >
> > -const uuid_le MEI_IAMTHIF = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d,  \
> > -				0xac, 0xa8, 0x46, 0xe0, 0xff, 0x65,
> > 0x81, 0x4c);
> > +const guid_t MEI_IAMTHIF =
> > +	GUID_INIT(0x12f80028, 0xb4b7, 0x4b2d,
> > +		  0xac, 0xa8, 0x46, 0xe0, 0xff, 0x65, 0x81, 0x4c);
> >
> >  #define AMT_HOST_IF_CODE_VERSIONS_REQUEST  0x0400001A
> >  #define AMT_HOST_IF_CODE_VERSIONS_RESPONSE 0x0480001A diff --git
> > a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index
> > 29d6699d5a06..045ec1a10e25 100644
> > --- a/scripts/mod/file2alias.c
> > +++ b/scripts/mod/file2alias.c
> > @@ -36,7 +36,7 @@ typedef uint16_t	__u16;
> >  typedef unsigned char	__u8;
> >  typedef struct {
> >  	__u8 b[16];
> > -} uuid_le;
> > +} guid_t;
> >
> >  /* Big exception to the "don't include kernel headers into userspace,
> > which
> >   * even potentially has different endianness and word sizes, since @@
> > -134,7 +134,7 @@ static inline void add_wildcard(char *str)
> >  		strcat(str + len, "*");
> >  }
> >
> > -static inline void add_uuid(char *str, uuid_le uuid)
> > +static inline void add_guid(char *str, guid_t uuid)
> >  {
> >  	int len = strlen(str);
> >
> > @@ -1230,7 +1230,7 @@ static int do_mei_entry(const char *filename,
> > void *symval,
> >
> >  	sprintf(alias, MEI_CL_MODULE_PREFIX);
> >  	sprintf(alias + strlen(alias), "%s:",  (*name)[0]  ? *name :
> > "*");
> > -	add_uuid(alias, *uuid);
> > +	add_guid(alias, *uuid);
> >  	ADD(alias, ":", version != MEI_CL_VERSION_ANY, version);
> >
> >  	strcat(alias, ":*");
> 
> --
> Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Intel Finland Oy

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