[PATCH net-next 13/15] ps3_gelic: Replace usage of found with dedicated list iterator variable

Jakob Koschel
2022-04-07T10:39:11Z

To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.

To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable instead of a
found boolean [1].

This removes the need to use a found variable and simply checking if
the variable was set, can determine if the break/goto was hit.

Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ [1]
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
---
.../net/ethernet/toshiba/ps3_gelic_wireless.c | 30 +++++++++----------
1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
index dc14a66583ff..c8a016c902cd 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
@@ -1495,14 +1495,14 @@ static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
*/
static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
{
+ struct gelic_wl_scan_info *target = NULL, *iter, *tmp;
struct gelic_eurus_cmd *cmd = NULL;
- struct gelic_wl_scan_info *target, *tmp;
struct gelic_wl_scan_info *oldest = NULL;
struct gelic_eurus_scan_info *scan_info;
unsigned int scan_info_size;
union iwreq_data data;
unsigned long this_time = jiffies;
- unsigned int data_len, i, found, r;
+ unsigned int data_len, i, r;
void *buf;

pr_debug("%s:start\n", __func__);
@@ -1539,14 +1539,14 @@ static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;

/* mark all entries are old */
- list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
- target->valid = 0;
+ list_for_each_entry_safe(iter, tmp, &wl->network_list, list) {
+ iter->valid = 0;
/* expire too old entries */
- if (time_before(target->last_scanned + wl->scan_age,
+ if (time_before(iter->last_scanned + wl->scan_age,
this_time)) {
- kfree(target->hwinfo);
- target->hwinfo = NULL;
- list_move_tail(&target->list, &wl->network_free_list);
+ kfree(iter->hwinfo);
+ iter->hwinfo = NULL;
+ list_move_tail(&iter->list, &wl->network_free_list);
}
}

@@ -1569,22 +1569,22 @@ static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
continue;
}

- found = 0;
+ target = NULL;
oldest = NULL;
- list_for_each_entry(target, &wl->network_list, list) {
- if (ether_addr_equal(&target->hwinfo->bssid[2],
+ list_for_each_entry(iter, &wl->network_list, list) {
+ if (ether_addr_equal(&iter->hwinfo->bssid[2],
&scan_info->bssid[2])) {
- found = 1;
+ target = iter;
pr_debug("%s: same BBS found scanned list\n",
__func__);
break;
}
if (!oldest ||
- (target->last_scanned < oldest->last_scanned))
- oldest = target;
+ (iter->last_scanned < oldest->last_scanned))
+ oldest = iter;
}

- if (!found) {
+ if (!target) {
/* not found in the list */
if (list_empty(&wl->network_free_list)) {
/* expire oldest */
--
2.25.1