The region set by the call to memset, immediately overwritten by the subsequent call to memcpy and thus makes the memset redundant. Also remove the memset((&info, 0, sizeof(info)) on line 398 because info is memcpy()'ed to before being used in the loop and it isn't used outside of the loop.
Unified · Split
| @@ -397,9 +397,6 @@ static struct sched_class *t4_sched_class_lookup(struct port_info *pi, · 396 unmodified lines | ||
| 397 | 397 | struct ch_sched_params info; |
| 398 | 398 | struct ch_sched_params tp; |
| 399 | 399 | |
| 400 | − memset(&info, 0, sizeof(info)); | |
| 401 | − memset(&tp, 0, sizeof(tp)); | |
| 402 | − | |
| 403 | 400 | memcpy(&tp, p, sizeof(tp)); |
| 404 | 401 | /* Don't try to match class parameter */ |
| 405 | 402 | tp.u.params.class = SCHED_CLS_NONE; |
| @@ -409,7 +406,6 @@ static struct sched_class *t4_sched_class_lookup(struct port_info *pi, · 3 unmodified lines | ||
| 409 | 406 | if (e->state == SCHED_STATE_UNUSED) |
| 410 | 407 | continue; |
| 411 | 408 | |
| 412 | − memset(&info, 0, sizeof(info)); | |
| 413 | 409 | memcpy(&info, &e->info, sizeof(info)); |
| 414 | 410 | /* Don't try to match class parameter */ |
| 415 | 411 | info.u.params.class = SCHED_CLS_NONE; |
| @@ -458,7 +454,6 @@ static struct sched_class *t4_sched_class_alloc(struct port_info *pi, · 42 unmodified lines | ||
| 458 | 454 | if (!e) |
| 459 | 455 | goto out; |
| 460 | 456 | |
| 461 | − memset(&np, 0, sizeof(np)); | |
| 462 | 457 | memcpy(&np, p, sizeof(np)); |
| 463 | 458 | np.u.params.class = e->idx; |
| 464 | 459 | |