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efi_loader: fix typos in efi_device_path.c

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Fix some typos in comments.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-10-17 21:55:24 +02:00 • committed by Alexander Graf
parent 3d05c38460
commit eb3bc8bb17
1 changed files with 12 additions and 11 deletions
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23
lib/efi_loader/efi_device_path.c
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@ -82,7 +82,7 @@ struct efi_device_path *efi_dp_next(const struct efi_device_path *dp)
/* /*
* Compare two device-paths, stopping when the shorter of the two hits * Compare two device-paths, stopping when the shorter of the two hits
* an End* node. This is useful to, for example, compare a device-path * an End* node. This is useful to, for example, compare a device-path
* representing a device with one representing a file on the device, or * representing a device with one representing a file on the device, or
* a device with a parent device. * a device with a parent device.
*/ */
@ -109,16 +109,17 @@ int efi_dp_match(const struct efi_device_path *a,
} }
/* /*
* See UEFI spec (section 3.1.2, about short-form device-paths.. * We can have device paths that start with a USB WWID or a USB Class node,
* tl;dr: we can have a device-path that starts with a USB WWID * and a few other cases which don't encode the full device path with bus
* or USB Class node, and a few other cases which don't encode * hierarchy:
* the full device path with bus hierarchy:
* *
* - MESSAGING:USB_WWID * - MESSAGING:USB_WWID
* - MESSAGING:USB_CLASS * - MESSAGING:USB_CLASS
* - MEDIA:FILE_PATH * - MEDIA:FILE_PATH
* - MEDIA:HARD_DRIVE * - MEDIA:HARD_DRIVE
* - MESSAGING:URI * - MESSAGING:URI
*
* See UEFI spec (section 3.1.2, about short-form device-paths)
*/ */
static struct efi_device_path *shorten_path(struct efi_device_path *dp) static struct efi_device_path *shorten_path(struct efi_device_path *dp)
{ {
@ -644,7 +645,7 @@ static unsigned dp_part_size(struct blk_desc *desc, int part)
/* /*
* Create a device node for a block device partition. * Create a device node for a block device partition.
* *
* @buf buffer to which the device path is wirtten * @buf buffer to which the device path is written
* @desc block device descriptor * @desc block device descriptor
* @part partition number, 0 identifies a block device * @part partition number, 0 identifies a block device
*/ */
@ -709,7 +710,7 @@ static void *dp_part_node(void *buf, struct blk_desc *desc, int part)
/* /*
* Create a device path for a block device or one of its partitions. * Create a device path for a block device or one of its partitions.
* *
* @buf buffer to which the device path is wirtten * @buf buffer to which the device path is written
* @desc block device descriptor * @desc block device descriptor
* @part partition number, 0 identifies a block device * @part partition number, 0 identifies a block device
*/ */
@ -728,7 +729,7 @@ static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
/* /*
* We *could* make a more accurate path, by looking at if_type * We *could* make a more accurate path, by looking at if_type
* and handling all the different cases like we do for non- * and handling all the different cases like we do for non-
* legacy (ie CONFIG_BLK=y) case. But most important thing * legacy (i.e. CONFIG_BLK=y) case. But most important thing
* is just to have a unique device-path for if_type+devnum. * is just to have a unique device-path for if_type+devnum.
* So map things to a fictitious USB device. * So map things to a fictitious USB device.
*/ */
@ -752,7 +753,7 @@ static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
return dp_part_node(buf, desc, part); return dp_part_node(buf, desc, part);
} }
/* Construct a device-path from a partition on a blk device: */ /* Construct a device-path from a partition on a block device: */
struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part) struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part)
{ {
void *buf, *start; void *buf, *start;
@ -771,7 +772,7 @@ struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part)
/* /*
* Create a device node for a block device partition. * Create a device node for a block device partition.
* *
* @buf buffer to which the device path is wirtten * @buf buffer to which the device path is written
* @desc block device descriptor * @desc block device descriptor
* @part partition number, 0 identifies a block device * @part partition number, 0 identifies a block device
*/ */
@ -791,7 +792,7 @@ struct efi_device_path *efi_dp_part_node(struct blk_desc *desc, int part)
return buf; return buf;
} }
/* convert path to an UEFI style path (ie. DOS style backslashes and utf16) */ /* convert path to an UEFI style path (i.e. DOS style backslashes and UTF-16) */
static void path_to_uefi(u16 *uefi, const char *path) static void path_to_uefi(u16 *uefi, const char *path)
{ {
while (*path) { while (*path) {