* [PATCH net-next] octeontx2-pf: fix an off by one bug in otx2_get_fecparam()
@ 2021-02-15 15:56 Dan Carpenter
2021-02-15 20:57 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2021-02-15 15:56 UTC (permalink / raw)
To: Sunil Goutham, Christina Jacob
Cc: Geetha sowjanya, Subbaraya Sundeep, hariprasad, David S. Miller,
Jakub Kicinski, Jesse Brandeburg, netdev, linux-kernel,
kernel-janitors
The "<= FEC_MAX_INDEX" comparison should be "< FEC_MAX_INDEX".
I did some cleanup in this function to hopefully make the code a bit
clearer. There was no blank line after the declaration block. The
closing curly brace on the fec[] declaration normally goes on a line
by itself. And I removed the FEC_MAX_INDEX define and used
ARRAY_SIZE(fec) instead.
Fixes: d0cf9503e908 ("octeontx2-pf: ethtool fec mode support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
.../net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
index 237e5d3321d4..0eaf11107cb7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c
@@ -955,16 +955,17 @@ static int otx2_get_fecparam(struct net_device *netdev,
ETHTOOL_FEC_OFF,
ETHTOOL_FEC_BASER,
ETHTOOL_FEC_RS,
- ETHTOOL_FEC_BASER | ETHTOOL_FEC_RS};
-#define FEC_MAX_INDEX 4
- if (pfvf->linfo.fec < FEC_MAX_INDEX)
+ ETHTOOL_FEC_BASER | ETHTOOL_FEC_RS,
+ };
+
+ if (pfvf->linfo.fec < ARRAY_SIZE(fec))
fecparam->active_fec = fec[pfvf->linfo.fec];
rsp = otx2_get_fwdata(pfvf);
if (IS_ERR(rsp))
return PTR_ERR(rsp);
- if (rsp->fwdata.supported_fec <= FEC_MAX_INDEX) {
+ if (rsp->fwdata.supported_fec < ARRAY_SIZE(fec)) {
if (!rsp->fwdata.supported_fec)
fecparam->fec = ETHTOOL_FEC_NONE;
else
--
2.30.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net-next] octeontx2-pf: fix an off by one bug in otx2_get_fecparam()
2021-02-15 15:56 [PATCH net-next] octeontx2-pf: fix an off by one bug in otx2_get_fecparam() Dan Carpenter
@ 2021-02-15 20:57 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2021-02-15 20:57 UTC (permalink / raw)
To: dan.carpenter
Cc: sgoutham, cjacob, gakula, sbhatta, hkelam, kuba,
jesse.brandeburg, netdev, linux-kernel, kernel-janitors
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 15 Feb 2021 18:56:46 +0300
> The "<= FEC_MAX_INDEX" comparison should be "< FEC_MAX_INDEX".
>
> I did some cleanup in this function to hopefully make the code a bit
> clearer. There was no blank line after the declaration block. The
> closing curly brace on the fec[] declaration normally goes on a line
> by itself. And I removed the FEC_MAX_INDEX define and used
> ARRAY_SIZE(fec) instead.
>
> Fixes: d0cf9503e908 ("octeontx2-pf: ethtool fec mode support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
This doesn't apply to net-next.
^ permalink raw reply [flat|nested] 2+ messages in thread
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