[v5] sched: remove useless malloc in pie data init
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Commit Message
'rte_pie_rt_data_init(NULL)' is not expected, and it's ought to
fail when this happen. The malloc inside the function didn't work.
So remove the malloc otherwise will lead to a memory leak.
Fixes: 44c730b0e37971 ("sched: add PIE based congestion management")
Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
---
v5:
* fix compile error
v4:
* replace all assignments to zero by a memset.
v3:
* fix typo
v2:
* revise according to Stephen's suggestion.
---
lib/sched/rte_pie.c | 22 ++++------------------
1 file changed, 4 insertions(+), 18 deletions(-)
Comments
01/03/2022 21:32, Weiguo Li:
> 'rte_pie_rt_data_init(NULL)' is not expected, and it's ought to
> fail when this happen. The malloc inside the function didn't work.
> So remove the malloc otherwise will lead to a memory leak.
>
> Fixes: 44c730b0e37971 ("sched: add PIE based congestion management")
>
> Signed-off-by: Weiguo Li <liwg06@foxmail.com>
> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
> Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
> ---
> v5:
> * fix compile error
> v4:
> * replace all assignments to zero by a memset.
> v3:
> * fix typo
> v2:
> * revise according to Stephen's suggestion.
Applied, thanks.
@@ -3,6 +3,7 @@
*/
#include <stdlib.h>
+#include <string.h>
#include "rte_pie.h"
#include <rte_malloc.h>
@@ -15,26 +16,11 @@ int
rte_pie_rt_data_init(struct rte_pie *pie)
{
if (pie == NULL) {
- /* Allocate memory to use the PIE data structure */
- pie = rte_malloc(NULL, sizeof(struct rte_pie), 0);
-
- if (pie == NULL)
- RTE_LOG(ERR, SCHED, "%s: Memory allocation fails\n", __func__);
-
- return -1;
+ RTE_LOG(ERR, SCHED, "%s: Invalid addr for pie\n", __func__);
+ return -EINVAL;
}
- pie->active = 0;
- pie->in_measurement = 0;
- pie->departed_bytes_count = 0;
- pie->start_measurement = 0;
- pie->last_measurement = 0;
- pie->qlen = 0;
- pie->avg_dq_time = 0;
- pie->burst_allowance = 0;
- pie->qdelay_old = 0;
- pie->drop_prob = 0;
- pie->accu_prob = 0;
+ memset(pie, 0, sizeof(*pie));
return 0;
}