diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2026-02-26 22:05:21 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2026-03-02 20:24:52 -0400 |
| commit | 46a93917bf776c35dfdfe7601f8972dacd9259ee (patch) | |
| tree | 0a8761dcbaafc8676d3b1239b90ec0365be8f516 /drivers | |
| parent | 11439c4635edd669ae435eec308f4ab8a0804808 (diff) | |
iommufd: Constify struct dma_buf_attach_ops
'struct dma_buf_attach_ops' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
81096 13899 192 95187 173d3 drivers/iommu/iommufd/pages.o
After:
=====
text data bss dec hex filename
81160 13835 192 95187 173d3 drivers/iommu/iommufd/pages.o
Link: https://patch.msgid.link/r/67e9126bbffa1d5c05124773a8dd4a3493be77ac.1772139886.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/iommufd/pages.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/iommufd/pages.c b/drivers/iommu/iommufd/pages.c index 9b49f0c5b459..4691456616ea 100644 --- a/drivers/iommu/iommufd/pages.c +++ b/drivers/iommu/iommufd/pages.c @@ -1450,7 +1450,7 @@ static void iopt_revoke_notify(struct dma_buf_attachment *attach) pages->dmabuf.phys.len = 0; } -static struct dma_buf_attach_ops iopt_dmabuf_attach_revoke_ops = { +static const struct dma_buf_attach_ops iopt_dmabuf_attach_revoke_ops = { .allow_peer2peer = true, .move_notify = iopt_revoke_notify, }; |