Move this code into a function so it can be called from elsewhere.
Signed-off-by: Simon Glass sjg@chromium.org ---
lib/efi_loader/efi_bootbin.c | 53 +++++++++++++++++++++++++----------- 1 file changed, 37 insertions(+), 16 deletions(-)
diff --git a/lib/efi_loader/efi_bootbin.c b/lib/efi_loader/efi_bootbin.c index a87006b3c0e..a0ab677ee1a 100644 --- a/lib/efi_loader/efi_bootbin.c +++ b/lib/efi_loader/efi_bootbin.c @@ -44,12 +44,46 @@ void efi_clear_bootdev(void) image_size = 0; }
+efi_status_t calculate_paths(const char *dev, const char *devnr, const char *path, + struct efi_device_path **device_pathp, + struct efi_device_path **image_pathp) + +{ + struct efi_device_path *image, *device; + efi_status_t ret; + + ret = efi_dp_from_name(dev, devnr, path, &device, &image); + if (ret != EFI_SUCCESS) + return ret; + + *device_pathp = device; + if (image) { + /* FIXME: image should not contain device */ + struct efi_device_path *image_tmp = image; + + efi_dp_split_file_path(image, &device, &image); + efi_free_pool(image_tmp); + } + *image_pathp = image; + log_debug("- boot device %pD\n", device); + if (image) + log_debug("- image %pD\n", image); + + return EFI_SUCCESS; +} + /** * efi_set_bootdev() - set boot device * * This function is called when a file is loaded, e.g. via the 'load' command. * We use the path to this file to inform the UEFI binary about the boot device. * + * For a valid image, it sets: + * - image_addr to the provided buffer + * - image_size to the provided buffer_size + * - bootefi_device_path to the EFI device-path + * - bootefi_image_path to the EFI image-path + * * @dev: device, e.g. "MMC" * @devnr: number of the device, e.g. "1:2" * @path: path to file loaded @@ -59,7 +93,6 @@ void efi_clear_bootdev(void) void efi_set_bootdev(const char *dev, const char *devnr, const char *path, void *buffer, size_t buffer_size) { - struct efi_device_path *device, *image; efi_status_t ret;
log_debug("dev=%s, devnr=%s, path=%s, buffer=%p, size=%zx\n", dev, @@ -93,21 +126,9 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path, image_addr = buffer; image_size = buffer_size;
- ret = efi_dp_from_name(dev, devnr, path, &device, &image); - if (ret == EFI_SUCCESS) { - bootefi_device_path = device; - if (image) { - /* FIXME: image should not contain device */ - struct efi_device_path *image_tmp = image; - - efi_dp_split_file_path(image, &device, &image); - efi_free_pool(image_tmp); - } - bootefi_image_path = image; - log_debug("- boot device %pD\n", device); - if (image) - log_debug("- image %pD\n", image); - } else { + ret = calculate_paths(dev, devnr, path, &bootefi_device_path, + &bootefi_image_path); + if (ret) { log_debug("- efi_dp_from_name() failed, err=%lx\n", ret); efi_clear_bootdev(); }