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net: uclass: Save generated ethernet MAC addresses to the environment
When a MAC address is randomly generated we currently only update the appropriate data structure. For consistency and to re-align with historic usage, it should be also saved to the appropriate environment variable as well. Cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com> [trini: Update Kconfig, handle legacy networking case as well] Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Ramon Fried <rfried.dev@gmail.com> Link: https://lore.kernel.org/r/1a2518e3cc19c14a41875ef64c5acc1f16edc813.1641893287.git.michal.simek@xilinx.com
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3 changed files with 9 additions and 4 deletions
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@ -27,10 +27,11 @@ config BOOTP_SEND_HOSTNAME
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config NET_RANDOM_ETHADDR
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bool "Random ethaddr if unset"
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help
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Selecting this will allow the Ethernet interface to function
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even when the ethaddr variable for that interface is unset.
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A new MAC address will be generated on every boot and it will
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not be added to the environment.
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Selecting this will allow the Ethernet interface to function even
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when the ethaddr variable for that interface is unset. In this case,
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a random MAC address in the locally administered address space is
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generated. It will be saved to the appropriate environment variable,
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too.
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config NETCONSOLE
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bool "NetConsole support"
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@ -583,6 +583,8 @@ static int eth_post_probe(struct udevice *dev)
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net_random_ethaddr(pdata->enetaddr);
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printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
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dev->name, dev_seq(dev), pdata->enetaddr);
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eth_env_set_enetaddr_by_index("eth", dev_seq(dev),
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pdata->enetaddr);
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#else
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printf("\nError: %s address not set.\n",
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dev->name);
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@ -164,6 +164,8 @@ int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
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net_random_ethaddr(dev->enetaddr);
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printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
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dev->name, eth_number, dev->enetaddr);
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eth_env_set_enetaddr_by_index("eth", eth_number,
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dev->enetaddr);
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#else
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printf("\nError: %s address not set.\n",
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dev->name);
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