efi_loader: disk: Fix CONFIG_BLK breakage

When using CONFIG_BLK, there were 2 issues:

  1) The name we generate the device with has to match the
     name we set in efi_set_bootdev()

  2) The device we pass into our block functions was wrong,
     we should not rediscover it but just use the already known
     pointer.

This patch fixes both issues.

Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index d66892e..b52ba9c 100644 (file)
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <dm/device.h>
 #include <efi_loader.h>
 #include <errno.h>
 #include <libfdt.h>
@@ -265,18 +266,30 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
        char devname[32] = { 0 }; /* dp->str is u16[32] long */
        char *colon;
 
-       /* Assemble the condensed device name we use in efi_disk.c */
-       snprintf(devname, sizeof(devname), "%s%s", dev, devnr);
+#if defined(CONFIG_BLK) || defined(CONFIG_ISO_PARTITION)
+       desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
+#endif
+
+#ifdef CONFIG_BLK
+       if (desc) {
+               snprintf(devname, sizeof(devname), "%s", desc->bdev->name);
+       } else
+#endif
+
+       {
+               /* Assemble the condensed device name we use in efi_disk.c */
+               snprintf(devname, sizeof(devname), "%s%s", dev, devnr);
+       }
+
        colon = strchr(devname, ':');
 
 #ifdef CONFIG_ISO_PARTITION
        /* For ISOs we create partition block devices */
-       desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
        if (desc && (desc->type != DEV_TYPE_UNKNOWN) &&
            (desc->part_type == PART_TYPE_ISO)) {
                if (!colon)
-                       snprintf(devname, sizeof(devname), "%s%s:1", dev,
-                                devnr);
+                       snprintf(devname, sizeof(devname), "%s:1", devname);
+
                colon = NULL;
        }
 #endif

diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index c434c92..e00a747 100644 (file)
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -31,6 +31,8 @@ struct efi_disk_obj {
        struct efi_device_path_file_path *dp;
        /* Offset into disk for simple partitions */
        lbaint_t offset;
+       /* Internal block device */
+       const struct blk_desc *desc;
 };
 
 static efi_status_t efi_disk_open_block(void *handle, efi_guid_t *protocol,
@@ -78,8 +80,7 @@ static efi_status_t EFIAPI efi_disk_rw_blocks(struct efi_block_io *this,
        unsigned long n;
 
        diskobj = container_of(this, struct efi_disk_obj, ops);
-       if (!(desc = blk_get_dev(diskobj->ifname, diskobj->dev_index)))
-               return EFI_EXIT(EFI_DEVICE_ERROR);
+       desc = (struct blk_desc *) diskobj->desc;
        blksz = desc->blksz;
        blocks = buffer_size / blksz;
        lba += diskobj->offset;
@@ -213,6 +214,7 @@ static void efi_disk_add_dev(const char *name,
        diskobj->ifname = if_typename;
        diskobj->dev_index = dev_index;
        diskobj->offset = offset;
+       diskobj->desc = desc;
 
        /* Fill in EFI IO Media info (for read/write callbacks) */
        diskobj->media.removable_media = desc->removable;
@@ -240,7 +242,8 @@ static void efi_disk_add_dev(const char *name,
 
 static int efi_disk_create_eltorito(struct blk_desc *desc,
                                    const char *if_typename,
-                                   int diskid)
+                                   int diskid,
+                                   const char *pdevname)
 {
        int disks = 0;
 #ifdef CONFIG_ISO_PARTITION
@@ -252,8 +255,8 @@ static int efi_disk_create_eltorito(struct blk_desc *desc,
                return 0;
 
        while (!part_get_info(desc, part, &info)) {
-               snprintf(devname, sizeof(devname), "%s%d:%d", if_typename,
-                        diskid, part);
+               snprintf(devname, sizeof(devname), "%s:%d", pdevname,
+                        part);
                efi_disk_add_dev(devname, if_typename, desc, diskid,
                                 info.start);
                part++;
@@ -296,7 +299,7 @@ int efi_disk_register(void)
                * so let's create them here
                */
                disks += efi_disk_create_eltorito(desc, if_typename,
-                                                 desc->devnum);
+                                                 desc->devnum, dev->name);
        }
 #else
        int i, if_type;
@@ -331,7 +334,8 @@ int efi_disk_register(void)
                         * El Torito images show up as block devices
                         * in an EFI world, so let's create them here
                         */
-                       disks += efi_disk_create_eltorito(desc, if_typename, i);
+                       disks += efi_disk_create_eltorito(desc, if_typename,
+                                                         i, devname);
                }
        }
 #endif