efi_loader: add efi_dp_from_name()
Factor out efi_set_bootdev() and extract efi_dp_from_name().
This function will be used to set a boot device in efishell command.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index a1650d6..78f126f 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -608,45 +608,19 @@
void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
{
- char filename[32] = { 0 }; /* dp->str is u16[32] long */
- char *s;
+ struct efi_device_path *device, *image;
+ efi_status_t ret;
/* efi_set_bootdev is typically called repeatedly, recover memory */
efi_free_pool(bootefi_device_path);
efi_free_pool(bootefi_image_path);
- /* If blk_get_device_part_str fails, avoid duplicate free. */
- bootefi_device_path = NULL;
- bootefi_image_path = NULL;
- if (strcmp(dev, "Net")) {
- struct blk_desc *desc;
- disk_partition_t fs_partition;
- int part;
-
- part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition,
- 1);
- if (part < 0)
- return;
-
- bootefi_device_path = efi_dp_from_part(desc, part);
+ ret = efi_dp_from_name(dev, devnr, path, &device, &image);
+ if (ret == EFI_SUCCESS) {
+ bootefi_device_path = device;
+ bootefi_image_path = image;
} else {
-#ifdef CONFIG_NET
- bootefi_device_path = efi_dp_from_eth();
-#endif
+ bootefi_device_path = NULL;
+ bootefi_image_path = NULL;
}
-
- if (!path)
- return;
-
- if (strcmp(dev, "Net")) {
- /* Add leading / to fs paths, because they're absolute */
- snprintf(filename, sizeof(filename), "/%s", path);
- } else {
- snprintf(filename, sizeof(filename), "%s", path);
- }
- /* DOS style file path: */
- s = filename;
- while ((s = strchr(s, '/')))
- *s++ = '\\';
- bootefi_image_path = efi_dp_from_file(NULL, 0, filename);
}