nfp: remove unused nfp_cpp_area_check_range()

Remove unused nfp_cpp_area_check_range() function.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h

@@ -242,8 +242,6 @@ int nfp_cpp_area_read(struct nfp_cpp_area *area, unsigned long offset,
 		      void *buffer, size_t length);
 int nfp_cpp_area_write(struct nfp_cpp_area *area, unsigned long offset,
 		       const void *buffer, size_t length);
-int nfp_cpp_area_check_range(struct nfp_cpp_area *area,
-			     unsigned long long offset, unsigned long size);
 const char *nfp_cpp_area_name(struct nfp_cpp_area *cpp_area);
 void *nfp_cpp_area_priv(struct nfp_cpp_area *cpp_area);
 struct nfp_cpp *nfp_cpp_area_cpp(struct nfp_cpp_area *cpp_area);

drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c

@@ -570,27 +570,6 @@ int nfp_cpp_area_write(struct nfp_cpp_area *area,
 	return area->cpp->op->area_write(area, kernel_vaddr, offset, length);
 }
 
-/**
- * nfp_cpp_area_check_range() - check if address range fits in CPP area
- * @area:	CPP area handle
- * @offset:	offset into CPP target
- * @length:	size of address range in bytes
- *
- * Check if address range fits within CPP area.  Return 0 if area
- * fits or -EFAULT on error.
- *
- * Return: 0, or -ERRNO
- */
-int nfp_cpp_area_check_range(struct nfp_cpp_area *area,
-			     unsigned long long offset, unsigned long length)
-{
-	if (offset < area->offset ||
-	    offset + length > area->offset + area->size)
-		return -EFAULT;
-
-	return 0;
-}
-
 /**
  * nfp_cpp_area_name() - return name of a CPP area
  * @cpp_area:	CPP area handle