drivers/intel/i210.h: Remove 'extern' from declaration
"extern" is always implied with function declarations.
Also remove the comment as the linker will just tell you the same if a
definition is missing.
Change-Id: I53679ab57981790f82affb46a006281b348af574
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71869
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
diff --git a/src/drivers/intel/i210/i210.h b/src/drivers/intel/i210/i210.h
index 1cc6a28..baaab6e 100644
--- a/src/drivers/intel/i210/i210.h
+++ b/src/drivers/intel/i210/i210.h
@@ -30,7 +30,6 @@
#define MAC_ADDR_LEN 6
/* We need one function we can call to get a MAC address to use */
-/* This function can be coded somewhere else but must exist. */
-extern enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[MAC_ADDR_LEN]);
+enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[MAC_ADDR_LEN]);
#endif /* _INTEL_I210_H_ */