[PATCH] tools/power/cpupower: Fix initializer override in hsw_ext_cstates

[PATCH] tools/power/cpupower: Fix initializer override in hsw_ext_cstates

[Nathan Chancellor]

When building cpupower with clang, the following warning appears:

 utils/idle_monitor/hsw_ext_idle.c:42:16: warning: initializer overrides
 prior initialization of this subobject [-Winitializer-overrides]
                 .desc                   = N_("Processor Package C2"),
                                              ^~~~~~~~~~~~~~~~~~~~~~
 ./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
 #define N_(String) gettext_noop(String)
                                 ^~~~~~
 ./utils/helpers/helpers.h:23:30: note: expanded from macro
 'gettext_noop'
 #define gettext_noop(String) String
                              ^~~~~~
 utils/idle_monitor/hsw_ext_idle.c:41:16: note: previous initialization
 is here
                 .desc                   = N_("Processor Package C9"),
                                              ^~~~~~~~~~~~~~~~~~~~~~
 ./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
 #define N_(String) gettext_noop(String)
                                 ^~~~~~
 ./utils/helpers/helpers.h:23:30: note: expanded from macro
 'gettext_noop'
 #define gettext_noop(String) String
                             ^~~~~~
 1 warning generated.

This appears to be a copy and paste or merge mistake because the name
and id fields both have PC9 in them, not PC2. Remove the second
assignment to fix the warning.

Fixes: 7ee767b69b68 ("cpupower: Add Haswell family 0x45 specific idle monitor to show PC8,9,10 states")
Link: https://github.com/ClangBuiltLinux/linux/issues/718
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
 tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
index 7c7451d3f494..58dbdfd4fa13 100644
--- a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
+++ b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
@@ -39,7 +39,6 @@ static cstate_t hsw_ext_cstates[HSW_EXT_CSTATE_COUNT] = {
 	{
 		.name			= "PC9",
 		.desc			= N_("Processor Package C9"),
-		.desc			= N_("Processor Package C2"),
 		.id			= PC9,
 		.range			= RANGE_PACKAGE,
 		.get_count_percent	= hsw_ext_get_count_percent,
-- 
2.23.0

Re: [PATCH] tools/power/cpupower: Fix initializer override in hsw_ext_cstates

[shuah]

On 9/27/19 10:26 AM, Nathan Chancellor wrote:
> When building cpupower with clang, the following warning appears:
> 
>   utils/idle_monitor/hsw_ext_idle.c:42:16: warning: initializer overrides
>   prior initialization of this subobject [-Winitializer-overrides]
>                   .desc                   = N_("Processor Package C2"),
>                                                ^~~~~~~~~~~~~~~~~~~~~~
>   ./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
>   #define N_(String) gettext_noop(String)
>                                   ^~~~~~
>   ./utils/helpers/helpers.h:23:30: note: expanded from macro
>   'gettext_noop'
>   #define gettext_noop(String) String
>                                ^~~~~~
>   utils/idle_monitor/hsw_ext_idle.c:41:16: note: previous initialization
>   is here
>                   .desc                   = N_("Processor Package C9"),
>                                                ^~~~~~~~~~~~~~~~~~~~~~
>   ./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
>   #define N_(String) gettext_noop(String)
>                                   ^~~~~~
>   ./utils/helpers/helpers.h:23:30: note: expanded from macro
>   'gettext_noop'
>   #define gettext_noop(String) String
>                               ^~~~~~
>   1 warning generated.
> 
> This appears to be a copy and paste or merge mistake because the name
> and id fields both have PC9 in them, not PC2. Remove the second
> assignment to fix the warning.
> 
> Fixes: 7ee767b69b68 ("cpupower: Add Haswell family 0x45 specific idle monitor to show PC8,9,10 states")
> Link: https://github.com/ClangBuiltLinux/linux/issues/718
> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
> ---
>   tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
> index 7c7451d3f494..58dbdfd4fa13 100644
> --- a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
> +++ b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
> @@ -39,7 +39,6 @@ static cstate_t hsw_ext_cstates[HSW_EXT_CSTATE_COUNT] = {
>   	{
>   		.name			= "PC9",
>   		.desc			= N_("Processor Package C9"),
> -		.desc			= N_("Processor Package C2"),
>   		.id			= PC9,
>   		.range			= RANGE_PACKAGE,
>   		.get_count_percent	= hsw_ext_get_count_percent,
> 

Looks good to me. I will queue this up for 5.4-rc2 or rc3.

thanks,
-- Shuah