[PATCH v3 12/12] monitor/hmp-cmds: Remove redundant statement in hmp_rocker_of_dpa_groups()

Chen Qun posted 12 patches 5 years, 6 months ago
Maintainers: Peter Lieven <pl@kamp.de>, John Snow <jsnow@redhat.com>, Max Reitz <mreitz@redhat.com>, Gerd Hoffmann <kraxel@redhat.com>, Kevin Wolf <kwolf@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Alistair Francis <alistair@alistair23.me>, Igor Mitsyanko <i.mitsyanko@gmail.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Ronnie Sahlberg <ronniesahlberg@gmail.com>, Andrzej Zaborowski <balrogg@gmail.com>, Fam Zheng <fam@euphon.net>, Paolo Bonzini <pbonzini@redhat.com>
There is a newer version of this series
[PATCH v3 12/12] monitor/hmp-cmds: Remove redundant statement in hmp_rocker_of_dpa_groups()
Posted by Chen Qun 5 years, 6 months ago
Clang static code analyzer show warning:
monitor/hmp-cmds.c:2867:17: warning: Value stored to 'set' is never read
                set = true;
                ^     ~~~~

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>

v1->v2: move the 'set' declaration to the for() statement(Base on Philippe's suggestion).
---
 monitor/hmp-cmds.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 53bc3f76c4..c6b0495822 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -2808,7 +2808,6 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
     const char *name = qdict_get_str(qdict, "name");
     uint8_t type = qdict_get_try_int(qdict, "type", 9);
     Error *err = NULL;
-    bool set = false;
 
     list = qmp_query_rocker_of_dpa_groups(name, type != 9, type, &err);
     if (err != NULL) {
@@ -2820,6 +2819,7 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
 
     for (g = list; g; g = g->next) {
         RockerOfDpaGroup *group = g->value;
+        bool set = false;
 
         monitor_printf(mon, "0x%08x", group->id);
 
@@ -2864,14 +2864,11 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
 
         if (group->has_set_eth_dst) {
             if (!set) {
-                set = true;
                 monitor_printf(mon, " set");
             }
             monitor_printf(mon, " dst %s", group->set_eth_dst);
         }
 
-        set = false;
-
         if (group->has_ttl_check && group->ttl_check) {
             monitor_printf(mon, " check TTL");
         }
-- 
2.23.0



Re: [PATCH v3 12/12] monitor/hmp-cmds: Remove redundant statement in hmp_rocker_of_dpa_groups()
Posted by Laurent Vivier 5 years, 6 months ago
Le 02/03/2020 à 14:07, Chen Qun a écrit :
> Clang static code analyzer show warning:
> monitor/hmp-cmds.c:2867:17: warning: Value stored to 'set' is never read
>                 set = true;
>                 ^     ~~~~
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
> 
> v1->v2: move the 'set' declaration to the for() statement(Base on Philippe's suggestion).
> ---
>  monitor/hmp-cmds.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
> index 53bc3f76c4..c6b0495822 100644
> --- a/monitor/hmp-cmds.c
> +++ b/monitor/hmp-cmds.c
> @@ -2808,7 +2808,6 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
>      const char *name = qdict_get_str(qdict, "name");
>      uint8_t type = qdict_get_try_int(qdict, "type", 9);
>      Error *err = NULL;
> -    bool set = false;
>  
>      list = qmp_query_rocker_of_dpa_groups(name, type != 9, type, &err);
>      if (err != NULL) {
> @@ -2820,6 +2819,7 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
>  
>      for (g = list; g; g = g->next) {
>          RockerOfDpaGroup *group = g->value;
> +        bool set = false;
>  
>          monitor_printf(mon, "0x%08x", group->id);
>  
> @@ -2864,14 +2864,11 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
>  
>          if (group->has_set_eth_dst) {
>              if (!set) {
> -                set = true;
>                  monitor_printf(mon, " set");
>              }
>              monitor_printf(mon, " dst %s", group->set_eth_dst);
>          }
>  
> -        set = false;
> -
>          if (group->has_ttl_check && group->ttl_check) {
>              monitor_printf(mon, " check TTL");
>          }
> 

Reviewed-by: Laurent Vivier <laurent@vivier.eu>

Re: [PATCH v3 12/12] monitor/hmp-cmds: Remove redundant statement in hmp_rocker_of_dpa_groups()
Posted by Laurent Vivier 5 years, 6 months ago
Le 02/03/2020 à 14:07, Chen Qun a écrit :
> Clang static code analyzer show warning:
> monitor/hmp-cmds.c:2867:17: warning: Value stored to 'set' is never read
>                 set = true;
>                 ^     ~~~~
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
> 
> v1->v2: move the 'set' declaration to the for() statement(Base on Philippe's suggestion).
> ---
>  monitor/hmp-cmds.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
> index 53bc3f76c4..c6b0495822 100644
> --- a/monitor/hmp-cmds.c
> +++ b/monitor/hmp-cmds.c
> @@ -2808,7 +2808,6 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
>      const char *name = qdict_get_str(qdict, "name");
>      uint8_t type = qdict_get_try_int(qdict, "type", 9);
>      Error *err = NULL;
> -    bool set = false;
>  
>      list = qmp_query_rocker_of_dpa_groups(name, type != 9, type, &err);
>      if (err != NULL) {
> @@ -2820,6 +2819,7 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
>  
>      for (g = list; g; g = g->next) {
>          RockerOfDpaGroup *group = g->value;
> +        bool set = false;
>  
>          monitor_printf(mon, "0x%08x", group->id);
>  
> @@ -2864,14 +2864,11 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
>  
>          if (group->has_set_eth_dst) {
>              if (!set) {
> -                set = true;
>                  monitor_printf(mon, " set");
>              }
>              monitor_printf(mon, " dst %s", group->set_eth_dst);
>          }
>  
> -        set = false;
> -
>          if (group->has_ttl_check && group->ttl_check) {
>              monitor_printf(mon, " check TTL");
>          }
> 

Applied to my trivial-patches branch.

Thanks,
Laurent