netdev - [PATCH net-next v2 1/9] bnxt_en: Return -EROFS to user space, if NVM writes are not permitted.

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Message-Id: <1602493854-29283-2-git-send-email-michael.chan@broadcom.com>
Date:   Mon, 12 Oct 2020 05:10:46 -0400
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, kuba@...nel.org, gospo@...adcom.com,
        Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Subject: [PATCH net-next v2 1/9] bnxt_en: Return -EROFS to user space, if NVM writes are not permitted.

From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>

If NVRAM resources are locked, NVM writes are not permitted. In such
scenarios, firmware returns HWRM_ERR_CODE_RESOURCE_LOCKED error to
firmware commands.

Reviewed-by: Edwin Peer <edwin.peer@...adcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 5e4b7fbeef06..d4402a2cd07f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4325,6 +4325,8 @@ static int bnxt_hwrm_to_stderr(u32 hwrm_err)
 	switch (hwrm_err) {
 	case HWRM_ERR_CODE_SUCCESS:
 		return 0;
+	case HWRM_ERR_CODE_RESOURCE_LOCKED:
+		return -EROFS;
 	case HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED:
 		return -EACCES;
 	case HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR:
-- 
2.18.1


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