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sfc: Remove redundant parameter to efx_filter_search()

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The 'for_insert' parameter is redundant since there are no longer
any other operations that need to search based on a filter spec.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
This commit is contained in:
Ben Hutchings 2013-01-14 21:23:14 +00:00
parent 7de07a4deb
commit e3a699fab3
1 changed files with 8 additions and 13 deletions
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21
drivers/net/ethernet/sfc/filter.c
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@ -522,7 +522,7 @@ static bool efx_filter_equal(const struct efx_filter_spec *left,
static int efx_filter_search(struct efx_filter_table *table,
struct efx_filter_spec *spec, u32 key,
bool for_insert, unsigned int *depth_required)
unsigned int *depth_required)
{
unsigned hash, incr, filter_idx, depth, depth_max;
@ -531,25 +531,20 @@ static int efx_filter_search(struct efx_filter_table *table,
filter_idx = hash & (table->size - 1);
depth = 1;
depth_max = (for_insert ?
(spec->priority <= EFX_FILTER_PRI_HINT ?
FILTER_CTL_SRCH_HINT_MAX : FILTER_CTL_SRCH_MAX) :
table->search_depth[spec->type]);
depth_max = (spec->priority <= EFX_FILTER_PRI_HINT ?
FILTER_CTL_SRCH_HINT_MAX : FILTER_CTL_SRCH_MAX);
for (;;) {
/* Return success if entry is used and matches this spec
* or entry is unused and we are trying to insert.
*/
if (test_bit(filter_idx, table->used_bitmap) ?
efx_filter_equal(spec, &table->spec[filter_idx]) :
for_insert) {
/* Return success if entry is unused or matches this spec */
if (!test_bit(filter_idx, table->used_bitmap) ||
efx_filter_equal(spec, &table->spec[filter_idx])) {
*depth_required = depth;
return filter_idx;
}
/* Return failure if we reached the maximum search depth */
if (depth == depth_max)
return for_insert ? -EBUSY : -ENOENT;
return -EBUSY;
filter_idx = (filter_idx + incr) & (table->size - 1);
++depth;
@ -686,7 +681,7 @@ s32 efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
spin_lock_bh(&state->lock);
rc = efx_filter_search(table, spec, key, true, &depth);
rc = efx_filter_search(table, spec, key, &depth);
if (rc < 0)
goto out;
filter_idx = rc;