[alsa-devel] [PATCH 2/6] ASoC: samsung: smdk_wm8580: Remove old platforms and drop mach-types usage
Lars-Peter Clausen
lars at metafoo.de
Sat Nov 19 16:45:10 CET 2016
On 11/19/2016 04:42 PM, Lars-Peter Clausen wrote:
> On 11/19/2016 03:48 PM, Krzysztof Kozlowski wrote:
> [...]
>> @@ -206,15 +204,10 @@ static int __init smdk_audio_init(void)
>> int ret;
>> char *str;
>>
>> - if (machine_is_smdkc100()
>> - || machine_is_smdkv210() || machine_is_smdkc110()) {
>> - smdk.num_links = 3;
>> - } else if (machine_is_smdk6410()) {
>> - str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name;
>> - str[strlen(str) - 1] = '2';
>> - str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name;
>> - str[strlen(str) - 1] = '2';
>> - }
>> + str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name;
>> + str[strlen(str) - 1] = '2';
>> + str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name;
>> + str[strlen(str) - 1] = '2';
>
> This could be further simplified by just updating the initial cpu_dai_name
> string in the dai_link struct.
>
> Especially considering that the cpu_dai_name is a string literal and the ARM
> kernel now has rodata write protection enabled by default, so modifying it
> will crash the kernel.
Spoke too soon, you fix this up in the next patch. But I'd just squash that
change into this patch. I think it is pretty safe to assume that it is correct.
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