Re: [PATCH 03/15] platform/x86/amd/pmf: Change signature of amd_pmf_set_dram_addr

["Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>]

On Fri, 22 Sep 2023, Shyam Sundar S K wrote:

Add () to the function name in the shortlog. "Change signature" is quite 
vague, perhaps you could come up something more descriptive.

> Make amd_pmf_set_dram_addr() as non-static so that same function
> can be used across files.

This says nothing about the move of allocation.

> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
> ---
>  drivers/platform/x86/amd/pmf/core.c | 14 ++++++++------
>  drivers/platform/x86/amd/pmf/pmf.h  |  1 +
>  2 files changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c
> index 68f1389dda3e..5fb03ed614ff 100644
> --- a/drivers/platform/x86/amd/pmf/core.c
> +++ b/drivers/platform/x86/amd/pmf/core.c
> @@ -251,26 +251,28 @@ static const struct pci_device_id pmf_pci_ids[] = {
>  	{ }
>  };
>  
> -static void amd_pmf_set_dram_addr(struct amd_pmf_dev *dev)
> +int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev)
>  {
>  	u64 phys_addr;
>  	u32 hi, low;
>  
> +	/* Get Metrics Table Address */
> +	dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL);
> +	if (!dev->buf)
> +		return -ENOMEM;
> +
>  	phys_addr = virt_to_phys(dev->buf);
>  	hi = phys_addr >> 32;
>  	low = phys_addr & GENMASK(31, 0);
>  
>  	amd_pmf_send_cmd(dev, SET_DRAM_ADDR_HIGH, 0, hi, NULL);
>  	amd_pmf_send_cmd(dev, SET_DRAM_ADDR_LOW, 0, low, NULL);
> +
> +	return 0;
>  }
>  
>  int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev)
>  {
> -	/* Get Metrics Table Address */
> -	dev->buf = kzalloc(sizeof(dev->m_table), GFP_KERNEL);
> -	if (!dev->buf)
> -		return -ENOMEM;
> -
>  	INIT_DELAYED_WORK(&dev->work_buffer, amd_pmf_get_metrics);
>  
>  	amd_pmf_set_dram_addr(dev);
> diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
> index a9333ff6c0a7..ea15ce547d24 100644
> --- a/drivers/platform/x86/amd/pmf/pmf.h
> +++ b/drivers/platform/x86/amd/pmf/pmf.h
> @@ -421,6 +421,7 @@ int amd_pmf_init_metrics_table(struct amd_pmf_dev *dev);
>  int amd_pmf_get_power_source(void);
>  int apmf_install_handler(struct amd_pmf_dev *pmf_dev);
>  int apmf_os_power_slider_update(struct amd_pmf_dev *dev, u8 flag);
> +int amd_pmf_set_dram_addr(struct amd_pmf_dev *dev);
>  
>  /* SPS Layer */
>  int amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf);
> 

Why are not amd_pmf_set_dram_addr() callers made to handle/pass on 
errors???

-- 
 i.