[PATCH V4 05/16] scsi: ipr: use sg helper to operate scatterlist

[Christoph Hellwig]

> -	for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
> -		struct page *page = sg_page(&scatterlist[i]);
> +	for (i = 0; i < (len / bsize_elem); i++, sg = sg_next(sg), buffer += bsize_elem) {

Please split the overly long line.

> +		struct page *page = sg_page(sg);
>  
>  		kaddr = kmap(page);
>  		memcpy(kaddr, buffer, bsize_elem);
>  		kunmap(page);

Not new in this patch, but this is buggy as scatterlists could have
offsets.  This should probably use the scatterlist.c copy helper
eventually.