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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 23/25] net: efi-snp: Check for carrier before sending
Date: Mon, 13 Dec 2021 22:09:03 +0100	[thread overview]
Message-ID: <20211213210905.3399551-24-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20211213210905.3399551-1-s.hauer@pengutronix.de>

We have carrier informations available, so check them before sending a
packet.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/net/efi-snp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/efi-snp.c b/drivers/net/efi-snp.c
index def2714bee..3c0663c802 100644
--- a/drivers/net/efi-snp.c
+++ b/drivers/net/efi-snp.c
@@ -134,6 +134,9 @@ static int efi_snp_eth_send(struct eth_device *edev, void *packet, int length)
 	void *txbuf;
 	uint64_t start;
 
+	if (!priv->snp->Mode->MediaPresent)
+		return -ENOMEDIUM;
+
 	efiret = priv->snp->transmit(priv->snp, 0, length, packet, NULL, NULL, NULL);
 	if (EFI_ERROR(efiret)) {
 		dev_err(priv->dev, "failed to send: %s\n", efi_strerror(efiret));
-- 
2.30.2


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  parent reply	other threads:[~2021-12-13 21:15 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-13 21:08 [PATCH 00/25] EFI improvements Sascha Hauer
2021-12-13 21:08 ` [PATCH 01/25] efi-devicepath: Make efi_device_path argument const Sascha Hauer
2021-12-13 21:08 ` [PATCH 02/25] efi: move device-path defines and types to header file Sascha Hauer
2021-12-13 21:08 ` [PATCH 03/25] efi: Implement device_path_to_subtype() Sascha Hauer
2021-12-13 21:08 ` [PATCH 04/25] efi: Do not register IPv[46] devices Sascha Hauer
2021-12-13 21:08 ` [PATCH 05/25] console: Fix message colours Sascha Hauer
2021-12-16 12:21   ` Jules Maselbas
2021-12-17 13:23     ` Sascha Hauer
2021-12-17 13:24       ` Jules Maselbas
2021-12-13 21:08 ` [PATCH 06/25] efi-stdio: remove unnecessary check Sascha Hauer
2021-12-13 21:08 ` [PATCH 07/25] efi-stdio: rename to efi_process_escape Sascha Hauer
2021-12-13 21:08 ` [PATCH 08/25] efi-stdio: return bytes actually consumed Sascha Hauer
2021-12-13 21:08 ` [PATCH 09/25] efi-stdio: fix escape sequence end detection Sascha Hauer
2021-12-13 21:08 ` [PATCH 10/25] efi-stdio: improve escape sequence parsing Sascha Hauer
2021-12-13 21:08 ` [PATCH 11/25] efi-stdio: Fix out of bounds error in puts Sascha Hauer
2021-12-13 21:08 ` [PATCH 12/25] efi-stdio: Fix tab printing Sascha Hauer
2021-12-13 21:08 ` [PATCH 13/25] efi-stdio: Implement efi_console_putc() using efi_console_puts() Sascha Hauer
2021-12-15 11:04   ` Ahmad Fatoum
2021-12-13 21:08 ` [PATCH 14/25] efi-stdio: Fix '\b' handling Sascha Hauer
2021-12-13 21:08 ` [PATCH 15/25] efi-stdio: implement input buffering with a kfifo Sascha Hauer
2021-12-13 21:08 ` [PATCH 16/25] efi-stdio: limit set_cursor to screen size boundaries Sascha Hauer
2021-12-13 21:08 ` [PATCH 17/25] efi-stdio: implement getting the cursor position Sascha Hauer
2021-12-13 21:08 ` [PATCH 18/25] efi-stdio: Implement setting cursor visibility Sascha Hauer
2021-12-13 21:08 ` [PATCH 19/25] efi-stdio: Support different text modes Sascha Hauer
2021-12-13 21:09 ` [PATCH 20/25] edit: improve screen size detection Sascha Hauer
2021-12-13 21:09 ` [PATCH 21/25] edit: Improve behaviour on efi-stdio console Sascha Hauer
2021-12-16 12:41   ` Jules Maselbas
2021-12-17 13:29     ` Sascha Hauer
2021-12-13 21:09 ` [PATCH 22/25] edit: send escape sequence only for smartscroll Sascha Hauer
2021-12-13 21:09 ` Sascha Hauer [this message]
2021-12-13 21:09 ` [PATCH 24/25] efi: add efi_device hook to be called before an image is started Sascha Hauer
2021-12-13 21:09 ` [PATCH 25/25] net: efi-snp: Open protocol exclusively Sascha Hauer
2021-12-15 11:07 ` [PATCH 00/25] EFI improvements Ahmad Fatoum
2021-12-18 12:07   ` Michael Graichen
2021-12-18 13:55     ` Sascha Hauer

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