diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2023-04-12 15:47:37 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-04-13 21:56:06 -0700 |
| commit | a291399e635415295860765954e247e83445e291 (patch) | |
| tree | 0a596c9910caf11b53800be3d909326d28b23139 /drivers/net/ethernet/mscc | |
| parent | 6663c01eca1a250374a898f19b60ec01859a3d0b (diff) | |
net: mscc: ocelot: fix ineffective WARN_ON() in ocelot_stats.c
Since it is hopefully now clear that, since "last" and "layout[i].reg"
are enum types and not addresses, the existing WARN_ON() is ineffective
in checking that the _addresses_ are sorted in the proper order.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mscc')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_stats.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_stats.c b/drivers/net/ethernet/mscc/ocelot_stats.c index e82c9d9d0ad3..5c55197c7327 100644 --- a/drivers/net/ethernet/mscc/ocelot_stats.c +++ b/drivers/net/ethernet/mscc/ocelot_stats.c @@ -901,6 +901,17 @@ static int ocelot_prepare_stats_regions(struct ocelot *ocelot) if (!layout[i].reg) continue; + /* enum ocelot_stat must be kept sorted in the same order + * as the addresses behind layout[i].reg in order to have + * efficient bulking + */ + if (last) { + WARN(ocelot->map[SYS][last & REG_MASK] >= ocelot->map[SYS][layout[i].reg & REG_MASK], + "reg 0x%x had address 0x%x but reg 0x%x has address 0x%x, bulking broken!", + last, ocelot->map[SYS][last & REG_MASK], + layout[i].reg, ocelot->map[SYS][layout[i].reg & REG_MASK]); + } + if (region && ocelot->map[SYS][layout[i].reg & REG_MASK] == ocelot->map[SYS][last & REG_MASK] + 4) { region->count++; @@ -910,12 +921,6 @@ static int ocelot_prepare_stats_regions(struct ocelot *ocelot) if (!region) return -ENOMEM; - /* enum ocelot_stat must be kept sorted in the same - * order as layout[i].reg in order to have efficient - * bulking - */ - WARN_ON(last >= layout[i].reg); - region->base = layout[i].reg; region->first_stat = i; region->count = 1; |