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SubjectRe: [PATCH 1/1] platform/x86/amd: Fix pmc compile dependency errors.
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On 11/7/22 04:28, Hans de Goede wrote:
> Hi,
>
> On 10/26/22 09:25, Yupeng Li wrote:
>> When disabled CONFIG_SUSPEND and CONFIG_DEBUG_FS, get_metrics_table
>> and amd_pmc_idlemask_read is defined under two conditions of this,
>> pmc build with implicit declaration of function error.Some build error
>> messages are as follows:
>>
>> CC [M] drivers/platform/x86/amd/pmc.o
>> drivers/platform/x86/amd/pmc.c: In function ‘smu_fw_info_show’:
>> drivers/platform/x86/amd/pmc.c:436:6: error: implicit declaration of function ‘get_metrics_table’ [-Werror=implicit-function-declaration]
>> 436 | if (get_metrics_table(dev, &table))
>> | ^~~~~~~~~~~~~~~~~
>> drivers/platform/x86/amd/pmc.c: In function ‘amd_pmc_idlemask_show’:
>> drivers/platform/x86/amd/pmc.c:508:8: error: implicit declaration of function ‘amd_pmc_idlemask_read’; did you mean ‘amd_pmc_idlemask_show’? [-Werror=implicit-function-declaration]
>> 508 | rc = amd_pmc_idlemask_read(dev, NULL, s);
>> | ^~~~~~~~~~~~~~~~~~~~~
>> | amd_pmc_idlemask_show
>> cc1: some warnings being treated as errors
>>
>> Signed-off-by: Yupeng Li <liyupeng@zbhlos.com>
>> Reviewed-by: Caicai <caizp2008@163.com>
>
> Thank you for your patch, however I do not believe that this is the correct fix:
>
>> ---
>> drivers/platform/x86/amd/pmc.c | 5 ++++-
>> 1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c
>> index ce859b300712..2b08039921b8 100644
>> --- a/drivers/platform/x86/amd/pmc.c
>> +++ b/drivers/platform/x86/amd/pmc.c
>> @@ -433,8 +433,10 @@ static int smu_fw_info_show(struct seq_file *s, void *unused)
>> struct smu_metrics table;
>> int idx;
>>
>> +#if defined(CONFIG_SUSPEND) || defined(CONFIG_DEBUG_FS)
>> if (get_metrics_table(dev, &table))
>> return -EINVAL;
>> +#endif
>>
>> seq_puts(s, "\n=== SMU Statistics ===\n");
>> seq_printf(s, "Table Version: %d\n", table.table_version);
>
> The table variable gets used here, but now it no longer has been initialized by
> get_metrics_table() so just #ifdef-ing out the get_metrics_table() call is wrong.
>
>> @@ -503,11 +505,12 @@ static int amd_pmc_idlemask_show(struct seq_file *s, void *unused)
>> if (rc)
>> return rc;
>> }
>> -
>> if (dev->major > 56 || (dev->major >= 55 && dev->minor >= 37)) {
>> +#if defined(CONFIG_SUSPEND) || defined(CONFIG_DEBUG_FS)
>> rc = amd_pmc_idlemask_read(dev, NULL, s);
>> if (rc)
>> return rc;
>> +#endif
>> } else {
>> seq_puts(s, "Unsupported SMU version for Idlemask\n");
>> }
>
> Same thing except now nothing gets send to the struct seq_file *s,
> so this is wrong too.
>
> Shyam / Mario, can you take a look at the reported compile errors please?
>
> Regards,
>
> Hans
>

What kernel is this? Shyam removed CONFIG_DEBUGFS in b37fe34c83. So is
this failure still happening in 6.1-rc4?

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