[v2] examples/vm_power: add support for list_foreach_safe
Checks
Commit Message
Asan tool reported LIST_FOREACH should be replaced with
LIST_FOREACH_SAFE. Added support for LIST_FOREACH_SAFE
macro in rte_os.h file as Linux header file sys/queue.h
don't support LIST_FOREACH_SAFE macro.
RTE_LIST_FOREACH_SAFE is alias for LIST_FOREACH_SAFE.
Fixes: e8ae9b662506 ("examples/vm_power: channel manager and monitor in host")
Cc: alan.carew@intel.com
Cc: stable@dpdk.org
Signed-off-by: Shibin Koikkara Reeny <shibin.koikkara.reeny@intel.com>
---
examples/vm_power_manager/channel_manager.c | 9 +++++----
lib/eal/linux/include/rte_os.h | 11 +++++++++++
2 files changed, 16 insertions(+), 4 deletions(-)
Comments
On Mon, 21 Mar 2022 09:33:42 +0000
Shibin Koikkara Reeny <shibin.koikkara.reeny@intel.com> wrote:
> diff --git a/examples/vm_power_manager/channel_manager.c b/examples/vm_power_manager/channel_manager.c
> index 838465ab4b..d297b28114 100644
> --- a/examples/vm_power_manager/channel_manager.c
> +++ b/examples/vm_power_manager/channel_manager.c
> @@ -66,8 +66,8 @@ LIST_HEAD(, virtual_machine_info) vm_list_head;
> static struct virtual_machine_info *
> find_domain_by_name(const char *name)
> {
> - struct virtual_machine_info *info;
> - LIST_FOREACH(info, &vm_list_head, vms_info) {
> + struct virtual_machine_info *info, *t_info;
> + RTE_LIST_FOREACH_SAFE(info, &vm_list_head, vms_info, t_info) {
> if (!strncmp(info->name, name, CHANNEL_MGR_MAX_NAME_LEN-1))
Please add blank line after declarations. It didn't have it before but
is better style.
@@ -66,8 +66,8 @@ LIST_HEAD(, virtual_machine_info) vm_list_head;
static struct virtual_machine_info *
find_domain_by_name(const char *name)
{
- struct virtual_machine_info *info;
- LIST_FOREACH(info, &vm_list_head, vms_info) {
+ struct virtual_machine_info *info, *t_info;
+ RTE_LIST_FOREACH_SAFE(info, &vm_list_head, vms_info, t_info) {
if (!strncmp(info->name, name, CHANNEL_MGR_MAX_NAME_LEN-1))
return info;
}
@@ -1005,9 +1005,9 @@ channel_manager_exit(void)
{
unsigned i;
char mask[RTE_MAX_LCORE];
- struct virtual_machine_info *vm_info;
+ struct virtual_machine_info *vm_info, *t_info;
- LIST_FOREACH(vm_info, &vm_list_head, vms_info) {
+ RTE_LIST_FOREACH_SAFE(vm_info, &vm_list_head, vms_info, t_info) {
rte_spinlock_lock(&(vm_info->config_spinlock));
@@ -1024,6 +1024,7 @@ channel_manager_exit(void)
LIST_REMOVE(vm_info, vms_info);
rte_free(vm_info);
+
}
if (global_hypervisor_available) {
@@ -25,6 +25,8 @@ extern "C" {
#define RTE_TAILQ_NEXT(elem, field) TAILQ_NEXT(elem, field)
#define RTE_STAILQ_HEAD(name, type) STAILQ_HEAD(name, type)
#define RTE_STAILQ_ENTRY(type) STAILQ_ENTRY(type)
+#define RTE_LIST_FIRST(head) LIST_FIRST(head)
+#define RTE_LIST_NEXT(elem, field) LIST_NEXT(elem, field)
#ifdef CPU_SETSIZE /* may require _GNU_SOURCE */
typedef cpu_set_t rte_cpuset_t;
@@ -46,6 +48,15 @@ typedef cpu_set_t rte_cpuset_t;
} while (0)
#endif
+#ifndef LIST_FOREACH_SAFE
+#define LIST_FOREACH_SAFE(var, head, field, tvar) \
+ for ((var) = RTE_LIST_FIRST(head); \
+ (var) && ((tvar) = RTE_LIST_NEXT((var), field), 1); \
+ (var) = (tvar))
+#endif
+#define RTE_LIST_FOREACH_SAFE(var, head, field, tvar) \
+ LIST_FOREACH_SAFE(var, head, field, tvar)
+
#ifdef __cplusplus
}
#endif