[v3] trivial patchs for static code analyzer fixes

[PATCH v3 02/10] hw/arm/omap1:Remove redundant statement in omap_clkdsp_read()

Posted by Chen Qun 5 years, 5 months ago

Clang static code analyzer show warning:
hw/arm/omap1.c:1760:15: warning: Value stored to 'cpu' during its
initialization is never read
    CPUState *cpu = CPU(s->cpu);
              ^~~   ~~~~~~~~~~~

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
---
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org
---
 hw/arm/omap1.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
index 6ba0df6b6d..02c0f66431 100644
--- a/hw/arm/omap1.c
+++ b/hw/arm/omap1.c
@@ -1774,7 +1774,6 @@ static uint64_t omap_clkdsp_read(void *opaque, hwaddr addr,
         return s->clkm.dsp_rstct2;
 
     case 0x18:	/* DSP_SYSST */
-        cpu = CPU(s->cpu);
         return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start |
                 (cpu->halted << 6);      /* Quite useless... */
     }
-- 
2.23.0

Re: [PATCH v3 02/10] hw/arm/omap1:Remove redundant statement in omap_clkdsp_read()

Posted by Laurent Vivier 5 years, 5 months ago

Le 27/08/2020 à 13:03, Chen Qun a écrit :
> Clang static code analyzer show warning:
> hw/arm/omap1.c:1760:15: warning: Value stored to 'cpu' during its
> initialization is never read
>     CPUState *cpu = CPU(s->cpu);
>               ^~~   ~~~~~~~~~~~
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
> Reviewed-by: Li Qiang <liq3ea@gmail.com>
> ---
> Cc: Peter Maydell <peter.maydell@linaro.org>
> Cc: qemu-arm@nongnu.org
> ---
>  hw/arm/omap1.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
> index 6ba0df6b6d..02c0f66431 100644
> --- a/hw/arm/omap1.c
> +++ b/hw/arm/omap1.c
> @@ -1774,7 +1774,6 @@ static uint64_t omap_clkdsp_read(void *opaque, hwaddr addr,
>          return s->clkm.dsp_rstct2;
>  
>      case 0x18:	/* DSP_SYSST */
> -        cpu = CPU(s->cpu);
>          return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start |
>                  (cpu->halted << 6);      /* Quite useless... */
>      }
> 

Applied to my trivial-patches branch.

Thanks,
Laurent