Use the proper helper to do the proper alignment of the buffer size
to the requirements of the swiotlb allocator instead of open coding
the logic.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
kernel/dma/swiotlb.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 27461fd63e0330..93737d0932fbf2 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -76,11 +76,9 @@ static unsigned long default_nslabs = IO_TLB_DEFAULT_SIZE >> IO_TLB_SHIFT;
static int __init
setup_io_tlb_npages(char *str)
{
- if (isdigit(*str)) {
- /* avoid tail segment of size < IO_TLB_SEGSIZE */
- default_nslabs =
- ALIGN(simple_strtoul(str, &str, 0), IO_TLB_SEGSIZE);
- }
+ if (isdigit(*str))
+ swiotlb_adjust_size(
+ simple_strtoul(str, &str, 0) << IO_TLB_SHIFT);
if (*str == ',')
++str;
if (!strcmp(str, "force"))
--
2.30.1
