mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-05 16:37:50 +00:00
Code Issues Releases Wiki Activity

net: dsa: felix: fix incorrect clamp calculation for burst

Browse source 
Currently burst is clamping on rate and not burst, the assignment
of burst from the clamping discards the previous assignment of burst.
This looks like a cut-n-paste error from the previous clamping
calculation on ramp.  Fix this by replacing ramp with burst.

Addresses-Coverity: ("Unused value")
Fixes: 0fbabf875d ("net: dsa: felix: add support Credit Based Shaper(CBS) for hardware offload")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Colin Ian King 2020-05-14 19:33:02 +01:00 committed by David S. Miller
parent 140ad6c8c6
commit b014d0430b
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/dsa/ocelot/felix_vsc9959.c
View file

@ -1360,7 +1360,7 @@ static int vsc9959_qos_port_cbs_set(struct dsa_switch *ds, int port,
/* Burst unit is 4kB */
burst = DIV_ROUND_UP(cbs_qopt->hicredit, 4096);
/* Avoid using zero burst size */
burst = clamp_t(u32, rate, 1, GENMASK(5, 0));
burst = clamp_t(u32, burst, 1, GENMASK(5, 0));
ocelot_write_gix(ocelot,
QSYS_CIR_CFG_CIR_RATE(rate) |
QSYS_CIR_CFG_CIR_BURST(burst),