diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2021-12-09 12:36:08 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-12-13 23:37:32 +0100 |
| commit | 287f2f4ab2f9f85383d26e6ff754fff3b95def82 (patch) | |
| tree | 655d5527a95ab9255413588a223df812c2c1b4b4 /drivers/efi | |
| parent | 28ec04c5922ceab115d42a9bb50b7e812c0fed89 (diff) | |
| download | barebox-287f2f4ab2f9f85383d26e6ff754fff3b95def82.tar.gz | |
efi: Do not register IPv[46] devices
Some UEFI instances create IPv4 and IPv6 messaging devices as children
of the main MAC messaging device. Don't register these in
barebox as they would show up as duplicate ethernet devices.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/efi')
| -rw-r--r-- | drivers/efi/efi-device.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/efi/efi-device.c b/drivers/efi/efi-device.c index 4c10f419b1..79cdd2ef27 100644 --- a/drivers/efi/efi-device.c +++ b/drivers/efi/efi-device.c @@ -18,6 +18,7 @@ #include <efi.h> #include <efi/efi-payload.h> #include <efi/efi-device.h> +#include <efi/device-path.h> #include <linux/err.h> static int efi_locate_handle(enum efi_locate_search_type search_type, @@ -180,13 +181,24 @@ static struct efi_device *efi_add_device(efi_handle_t *handle, efi_guid_t **guid return efidev; } - static int efi_register_device(struct efi_device *efidev) { char *dev_path_str; struct efi_device *parent; int ret; + /* + * Some UEFI instances create IPv4 and IPv6 messaging devices as children + * of the main MAC messaging device. Don't register these in barebox as + * they would show up as duplicate ethernet devices. + */ + if (device_path_to_type(efidev->devpath) == MESSAGING_DEVICE_PATH) { + u8 subtype = device_path_to_subtype(efidev->devpath); + + if (subtype == MSG_IPv4_DP || subtype == MSG_IPv6_DP) + return -EINVAL; + } + if (efi_find_device(efidev->handle)) return -EEXIST; |