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From: Lucas Stach <l.stach@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 3/3] net/e1000: don't check EEPROM signature if populated from iNVM
Date: Wed, 24 Jan 2018 12:32:16 +0100	[thread overview]
Message-ID: <20180124113216.16950-3-l.stach@pengutronix.de> (raw)
In-Reply-To: <20180124113216.16950-1-l.stach@pengutronix.de>

The EEPROM device will contain an invalid signature if it has been
populated from iNVM. Since the iNVM enum type has been removed, the
only way to tell if a signature check makes sense is to look at the
EEPROM valid status.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 drivers/net/e1000/eeprom.c | 10 ++++------
 drivers/net/e1000/main.c   |  2 +-
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/net/e1000/eeprom.c b/drivers/net/e1000/eeprom.c
index 7b92aa0fb715..07ee81d14e0a 100644
--- a/drivers/net/e1000/eeprom.c
+++ b/drivers/net/e1000/eeprom.c
@@ -1006,12 +1006,10 @@ int e1000_validate_eeprom_checksum(struct e1000_hw *hw)
 	DEBUGFUNC();
 
 	/*
-	  Only the following three 'types' of EEPROM can be expected
-	  to have correct EEPROM checksum
-	*/
-	if (hw->eeprom.type != e1000_eeprom_spi &&
-	    hw->eeprom.type != e1000_eeprom_microwire &&
-	    hw->eeprom.type != e1000_eeprom_flash)
+	 * If the EEPROM device content isn't valid there is no point in
+	 * checking the signature.
+	 */
+	if (!e1000_eeprom_valid(hw))
 		return 0;
 
 	/* Read the EEPROM */
diff --git a/drivers/net/e1000/main.c b/drivers/net/e1000/main.c
index 0139c4a6d758..bb6ab4eb0360 100644
--- a/drivers/net/e1000/main.c
+++ b/drivers/net/e1000/main.c
@@ -3597,7 +3597,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		}
 	}
 
-	if (!e1000_eeprom_valid(hw) || e1000_validate_eeprom_checksum(hw))
+	if (e1000_validate_eeprom_checksum(hw))
 		return 0;
 
 	e1000_get_ethaddr(edev, edev->ethaddr);
-- 
2.15.1


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  parent reply	other threads:[~2018-01-24 11:32 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-24 11:32 [PATCH 1/3] net/e1000: use correct bit to check for flash presence Lucas Stach
2018-01-24 11:32 ` [PATCH 2/3] net/e1000: mark EEPROM as invalid if external flash is absent Lucas Stach
2018-01-24 11:32 ` Lucas Stach [this message]
2018-01-25  7:21 ` [PATCH 1/3] net/e1000: use correct bit to check for flash presence Uwe Kleine-König

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