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- From dd07dd394d8bfdb5d527fab18ca54f20815ec4e4 Mon Sep 17 00:00:00 2001
- From: Will Moss <[email protected]>
- Date: Wed, 3 Aug 2022 13:48:55 +0000
- Subject: [PATCH] of_net: do mac-address-increment only once
- Remove mac-address-increment and mac-address-increment-byte
- DT property after incrementing process to make sure MAC address
- would not get incremented more if this function is stared again.
- It could happen if device initialization is deferred after
- unsuccessful attempt.
- Signed-off-by: Will Moss <[email protected]>
- ---
- drivers/of/of_net.c | 6 ++++++
- 1 file changed, 6 insertions(+)
- --- a/net/core/of_net.c
- +++ b/net/core/of_net.c
- @@ -184,6 +184,11 @@ found:
- addr[3] = (mac_val >> 16) & 0xff;
- addr[4] = (mac_val >> 8) & 0xff;
- addr[5] = (mac_val >> 0) & 0xff;
- +
- + /* Remove mac-address-increment DT property to make sure MAC
- + * address would not get incremented more if this function is
- + * stared again. */
- + of_remove_property(np, of_find_property(np, "mac-address-increment", NULL));
- }
-
- of_add_mac_address(np, addr);
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