netdev - Re: [PATCH net-next 7/7] sfc: add debugfs node for filter table contents

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Date: Mon, 11 Dec 2023 19:17:34 +0000
From: Simon Horman <horms@...nel.org>
To: edward.cree@....com
Cc: linux-net-drivers@....com, davem@...emloft.net, kuba@...nel.org,
	pabeni@...hat.com, edumazet@...gle.com,
	Edward Cree <ecree.xilinx@...il.com>, netdev@...r.kernel.org,
	habetsm.xilinx@...il.com,
	Jonathan Cooper <jonathan.s.cooper@....com>
Subject: Re: [PATCH net-next 7/7] sfc: add debugfs node for filter table
 contents

On Mon, Dec 11, 2023 at 05:18:32PM +0000, edward.cree@....com wrote:
> From: Edward Cree <ecree.xilinx@...il.com>
> 
> Expose the filter table entries.
> 
> Reviewed-by: Jonathan Cooper <jonathan.s.cooper@....com>
> Signed-off-by: Edward Cree <ecree.xilinx@...il.com>

...

> diff --git a/drivers/net/ethernet/sfc/debugfs.h b/drivers/net/ethernet/sfc/debugfs.h

...

> @@ -63,6 +67,45 @@ void efx_fini_debugfs_nic(struct efx_nic *efx);
>  int efx_init_debugfs(void);
>  void efx_fini_debugfs(void);
>  
> +void efx_debugfs_print_filter(char *s, size_t l, struct efx_filter_spec *spec);
> +
> +/* Generate operations for a debugfs node with a custom reader function.
> + * The reader should have signature int (*)(struct seq_file *s, void *data)
> + * where data is the pointer passed to EFX_DEBUGFS_CREATE_RAW.
> + */
> +#define EFX_DEBUGFS_RAW_PARAMETER(_reader)				       \
> +									       \
> +static int efx_debugfs_##_reader##_read(struct seq_file *s, void *d)	       \
> +{									       \
> +	return _reader(s, s->private);					       \
> +}									       \
> +									       \
> +static int efx_debugfs_##_reader##_open(struct inode *inode, struct file *f)   \
> +{									       \
> +	return single_open(f, efx_debugfs_##_reader##_read, inode->i_private); \
> +}									       \

Hi Edward,

I think that probably the above should be static inline.

...