On 12/19/24 03:38, Simon Glass wrote:
Move this code into a function so it can be called from elsewhere.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v3:
Make calculate_paths() static and add a comment
lib/efi_loader/efi_bootbin.c | 85 ++++++++++++++++++++++++------------ 1 file changed, 57 insertions(+), 28 deletions(-)
diff --git a/lib/efi_loader/efi_bootbin.c b/lib/efi_loader/efi_bootbin.c index b677bbc3124..5016ba7e225 100644 --- a/lib/efi_loader/efi_bootbin.c +++ b/lib/efi_loader/efi_bootbin.c @@ -44,12 +44,64 @@ void efi_clear_bootdev(void) image_size = 0; }
+/**
- calculate_paths() - Calculate the device and image patch given a device
%s/patch/path/
The description makes no sense. You cannot derive an image device path from a device.
- @dev: device, e.g. "MMC"
- @devnr: number of the device, e.g. "1:2"
- @path: path to file loaded
- @device_pathp: returns EFI device path
- @image_pathp: returns EFI image path
- Return EFI_SUCCESS on success, else error code
This would not work with Sphinx
%s/Return/Return:/
- */
+static 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;
+#if IS_ENABLED(CONFIG_NETDEVICES)
Please, avoid #if. The include needs to be fixed.
- if (!strcmp(dev, "Net") || !strcmp(dev, "Http")) {
ret = efi_net_set_dp(dev, devnr);if (ret != EFI_SUCCESS)return ret;- }
This does not fit to the function description. It has nothing to do with calculating device-paths.
+#endif
- 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 */
We could change efi_dp_from_name() but then we would have to concatenate paths in create_lo_dp_part().
This does not deserve a FIXME label.
Best regards
Heinrich
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 +111,6 @@ 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,
@@ -93,34 +144,12 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path, image_addr = buffer; image_size = buffer_size;
-#if IS_ENABLED(CONFIG_NETDEVICES)
- if (!strcmp(dev, "Net") || !strcmp(dev, "Http")) {
ret = efi_net_set_dp(dev, devnr);if (ret != EFI_SUCCESS)goto error;- }
-#endif
- ret = efi_dp_from_name(dev, devnr, path, &device, &image);
- if (ret != EFI_SUCCESS)
goto error;- 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);
- 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();
- bootefi_image_path = image;
- log_debug("- boot device %pD\n", device);
- if (image)
log_debug("- image %pD\n", image);- return;
-error:
log_debug("- efi_dp_from_name() failed, err=%lx\n", ret);
efi_clear_bootdev(); }
/**