Hi Petr,
On Wed, 9 Sept 2026 at 09:27, Petr Hodina via B4 Relay
<[email protected]> wrote:
>
> From: Petr Hodina <[email protected]>
>
> Gate the initr_net() INITCALL on CONFIG_NET_SKIP_BOOT_INIT at the
> call site in initcall_run_r(), so boards with no wired NIC can skip
> the boot-time probe and "Net:" banner without touching initr_net()
> itself.
>
> Signed-off-by: Petr Hodina <[email protected]>
> ---
> initr_net() probes for Ethernet and prints a "Net:" banner when `NET` option
> is enabled, which is not relevant for boards that use USB gadgets
> for networking.
Why? Doesn't that eventually print 'Net: No ethernet found.' ?
>
> Add CONFIG_NET_SKIP_BOOT_INIT to skip that boot-time probe. Later
> invocations still probe UCLASS_ETH normally. Defaults to n.
What do you mean normally?
I don't think adding a Kconfig option to disable a print is worth the hassle.
Thanks
/Ilias
> ---
> common/board_r.c | 6 ++++--
> net/Kconfig | 7 +++++++
> 2 files changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/common/board_r.c b/common/board_r.c
> index a397e20959d..1de4b4925b1 100644
> --- a/common/board_r.c
> +++ b/common/board_r.c
> @@ -761,8 +761,10 @@ static void initcall_run_r(void)
> INITCALL(pci_ep_init);
> #endif
> #if CONFIG_IS_ENABLED(NET)
> - WATCHDOG_RESET();
> - INITCALL(initr_net);
> + if (!IS_ENABLED(CONFIG_NET_SKIP_BOOT_INIT)) {
> + WATCHDOG_RESET();
> + INITCALL(initr_net);
> + }
> #endif
> #if CONFIG_IS_ENABLED(POST)
> INITCALL(initr_post);
> diff --git a/net/Kconfig b/net/Kconfig
> index e712a0dd2ac..d42a68d8e12 100644
> --- a/net/Kconfig
> +++ b/net/Kconfig
> @@ -14,6 +14,13 @@ menuconfig NET
>
> if NET
>
> +config NET_SKIP_BOOT_INIT
> + bool "Skip the boot-time ethernet probe + 'Net:' banner"
> + help
> + By default init runs eth_initialize() if `NET` option is enabled.
> + Some boards do not have a wired NIC but use RNDIS or CDC-NCM
> + gadgets on the USB to provide network connectivity.
> +
> choice
> prompt "Networking stack"
> default NET_LEGACY
>
> ---
> base-commit: ece349ade2973e220f524ce59e59711cc919263f
> change-id: 20260611-b4-net-skip-boot-init-86fcfcc0674d
>
> Best regards,
> --
> Petr Hodina <[email protected]>
>
>
