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efi_loader: efi_dp_find_obj() add protocol check

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Let function efi_dp_find_obj() additionally check if a given protocol is
installed on the handle relating to the device-path.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt
2022-03-19 06:35:43 +01:00
parent c409593d08
commit e46ef1db9e
5 changed files with 20 additions and 10 deletions
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include/efi_loader.h
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@@ -731,6 +731,7 @@ struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
int efi_dp_match(const struct efi_device_path *a,
const struct efi_device_path *b);
efi_handle_t efi_dp_find_obj(struct efi_device_path *dp,
const efi_guid_t *guid,
struct efi_device_path **rem);
/* get size of the first device path instance excluding end node */
efi_uintn_t efi_dp_instance_size(const struct efi_device_path *dp);