linux-kernel - Re: [PATCH 1/2] clk: pistachio: Fix initconst confusion

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Message-ID: <0edab0e2-5355-a3da-445d-b6f45e3082ed@suse.cz>
Date:   Mon, 27 Jun 2022 09:46:15 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     Stephen Boyd <sboyd@...nel.org>, mturquette@...libre.com
Cc:     mliska@...e.cz, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>, linux-clk@...r.kernel.org
Subject: Re: [PATCH 1/2] clk: pistachio: Fix initconst confusion

On 24. 06. 22, 2:42, Stephen Boyd wrote:
> Quoting Jiri Slaby (2022-06-23 01:32:16)
>> From: Andi Kleen <ak@...ux.intel.com>
>>
>> A variable pointing to const isn't const itself. It'd have to contain
>> "const" keyword after "*" too. Therefore, PNAME() cannot put the strings
>> to "rodata".  Hence use __initdata instead of __initconst to fix this.
>>
>> [js] more explanatory commit message.
>>
>> Cc: Michael Turquette <mturquette@...libre.com>
>> Cc: Stephen Boyd <sboyd@...nel.org>
>> Cc: linux-clk@...r.kernel.org
>> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
>> Signed-off-by: Jiri Slaby <jslaby@...e.cz>
>> ---
>>   drivers/clk/pistachio/clk.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/clk/pistachio/clk.h b/drivers/clk/pistachio/clk.h
>> index f9c31e3a0e47..742e5fab00c0 100644
>> --- a/drivers/clk/pistachio/clk.h
>> +++ b/drivers/clk/pistachio/clk.h
>> @@ -34,7 +34,7 @@ struct pistachio_mux {
>>          const char **parents;
>>   };
>>   
>> -#define PNAME(x) static const char *x[] __initconst
>> +#define PNAME(x) static const char *x[] __initdata
> 
> Can it be const char * const and left as __initconst?

Let me check, IIRC the struct where this is assigned would need to be 
updated too.

I will get into it only some time next week.

thanks,
-- 
js
suse labs