Re: [PATCH] iommu/vt-d: constify intel_dma_ops.

From: Arvind Yadav
Date: Wed Jun 28 2017 - 06:02:08 EST


Hi,

Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This file size diff
will show the difference between data and text segment.

Thanks,
~arvind

On Wednesday 28 June 2017 02:23 PM, Joerg Roedel wrote:
On Tue, Jun 13, 2017 at 03:48:34PM +0530, Arvind Yadav wrote:
File size before:
text data bss dec hex filename
32765 758 1824 35347 8a13 drivers/iommu/intel-iommu.o

File size After adding 'const':
text data bss dec hex filename
32925 598 1824 35347 8a13 drivers/iommu/intel-iommu.o
What is the point of those commit-messages? They just show that the
struct moved from data to the text segment. The overall size doesn't
change much.



Joerg