Re:Re: [EXT] [PATCH v3] octeontx2-af: Fix missing check bugs in rvu_cgx.c

The changes look good to me.

You can add:
Reviewed-by: Geetha sowjanya<gakula@marvell.com>

________________________________________
From: wangyingjie55@126.com <redacted>
Sent: Thursday, January 14, 2021 11:00 AM
To: davem@davemloft.net; kuba@kernel.org; Vidhya Vidhyaraman; Stanislaw Kardach [C]
Cc: Sunil Kovvuri Goutham; Linu Cherian; Geethasowjanya Akula; Jerin Jacob Kollanukkaran; netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Yingjie Wang
Subject: [EXT] [PATCH v3] octeontx2-af: Fix missing check bugs in rvu_cgx.c

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From: Yingjie Wang <redacted>

In rvu_mbox_handler_cgx_mac_addr_get()
and rvu_mbox_handler_cgx_mac_addr_set(),
the msg is expected only from PFs that are mapped to CGX LMACs.
It should be checked before mapping,
so we add the is_cgx_config_permitted() in the functions.

Fixes: 96be2e0da85e ("octeontx2-af: Support for MAC address filters in CGX")
Signed-off-by: Yingjie Wang <redacted>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index d298b9357177..6c6b411e78fd 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c

@@ -469,6 +469,9 @@ int rvu_mbox_handler_cgx_mac_addr_set(struct rvu *rvu,
       int pf = rvu_get_pf(req->hdr.pcifunc);
       u8 cgx_id, lmac_id;

+       if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
+               return -EPERM;
+
       rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);

       cgx_lmac_addr_set(cgx_id, lmac_id, req->mac_addr);

@@ -485,6 +488,9 @@ int rvu_mbox_handler_cgx_mac_addr_get(struct rvu *rvu,
       int rc = 0, i;
       u64 cfg;

+       if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
+               return -EPERM;
+
       rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);

       rsp->hdr.rc = rc;
--

2.7.4