[PATCH AUTOSEL 4.19 094/209] bnxt_en: return proper error when FW returns HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED
From: Sasha Levin <sashal@kernel.org>
Date: 2019-11-13 01:52:57
Also in:
lkml, stable
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Vasundhara Volam <redacted> [ Upstream commit 3a1d52a54a6a4030b294e5f5732f0bfbae0e3815 ] Return proper error code when Firmware returns HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED for HWRM_NVM_GET/SET_VARIABLE commands. Cc: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Vasundhara Volam <redacted> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 790c684f08abc..b178c2e9dc231 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c@@ -78,8 +78,12 @@ static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg, memcpy(buf, data_addr, bytesize); dma_free_coherent(&bp->pdev->dev, bytesize, data_addr, data_dma_addr); - if (rc) + if (rc == HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED) { + netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n"); + return -EACCES; + } else if (rc) { return -EIO; + } return 0; }
--
2.20.1