Re: [PATCH rdma-next v3 2/3] lib/scatterlist: Fix wrong update of orig_nents

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On Thu, Jul 29, 2021 at 12:39:12PM +0300, Leon Romanovsky wrote:

> +/**
> + * __sg_free_table - Free a previously mapped sg table
> + * @table:	The sg table header to use
> + * @max_ents:	The maximum number of entries per single scatterlist
> + * @total_ents:	The total number of entries in the table
> + * @nents_first_chunk: Number of entries int the (preallocated) first
> + *                     scatterlist chunk, 0 means no such preallocated
> + *                     first chunk
> + * @free_fn:	Free function
> + *
> + *  Description:
> + *    Free an sg table previously allocated and setup with
> + *    __sg_alloc_table().  The @max_ents value must be identical to
> + *    that previously used with __sg_alloc_table().
> + *
> + **/
> +void __sg_free_table(struct sg_table *table, unsigned int max_ents,
> +		     unsigned int nents_first_chunk, sg_free_fn *free_fn)
> +{
> +	sg_free_table_entries(table, max_ents, nents_first_chunk, free_fn,
> +			      table->orig_nents);
> +}
>  EXPORT_SYMBOL(__sg_free_table);

This is getting a bit indirect, there is only one caller of
__sg_free_table() in sg_pool.c, so may as well just export
sg_free_table_entries have have it use that directly.

Jason



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