diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index bd77152bb8d7..f4bdca662d61 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -169,6 +169,9 @@ void cgx_lmac_write(int cgx_id, int lmac_id, u64 offset, u64 val) { struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + /* Software must not access disabled LMAC registers */ + if (!is_lmac_valid(cgx_dev, lmac_id)) + return; cgx_write(cgx_dev, lmac_id, offset, val); } @@ -176,6 +179,10 @@ u64 cgx_lmac_read(int cgx_id, int lmac_id, u64 offset) { struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + /* Software must not access disabled LMAC registers */ + if (!is_lmac_valid(cgx_dev, lmac_id)) + return 0; + return cgx_read(cgx_dev, lmac_id, offset); } |