git: 32e82bcc1527 - main - busdma_iommu: Eliminate a redundant trunc_page()

[Alan Cox]

The branch main has been updated by alc:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=32e82bcc152783dfe0d03ffdd864cedfddbc80d7

commit 32e82bcc152783dfe0d03ffdd864cedfddbc80d7
Author:     Alan Cox <a...@freebsd.org>
AuthorDate: 2022-06-20 18:40:42 +0000
Commit:     Alan Cox <a...@freebsd.org>
CommitDate: 2022-06-21 04:03:04 +0000

    busdma_iommu: Eliminate a redundant trunc_page()
    
    Since OFF_TO_IDX() inherently truncates the given value, there is no
    need to perform trunc_page() on it.
    
    MFC after:      2 weeks
---
 sys/dev/iommu/busdma_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/iommu/busdma_iommu.c b/sys/dev/iommu/busdma_iommu.c
index ae8c98922e41..42fc0b6c5451 100644
--- a/sys/dev/iommu/busdma_iommu.c
+++ b/sys/dev/iommu/busdma_iommu.c
@@ -634,7 +634,7 @@ iommu_bus_dmamap_load_something1(struct bus_dma_tag_iommu 
*tag,
                segs[seg].ds_addr = entry->start + offset;
                segs[seg].ds_len = buflen1;
 
-               idx += OFF_TO_IDX(trunc_page(offset + buflen1));
+               idx += OFF_TO_IDX(offset + buflen1);
                offset += buflen1;
                offset &= IOMMU_PAGE_MASK;
                buflen -= buflen1;