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authorChristoph Hellwig <hch@lst.de>2021-03-18 19:14:24 +0300
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2021-03-19 07:58:25 +0300
commit2cbc2776efe4faed0e17c48ae076aa03a0fcc61f (patch)
tree9f3fbd9abc1e971ad0807dcd2e0645b9aafd8634 /kernel/dma
parent2d29960af0bee8cc6731b9bd3964850c9e7a6840 (diff)
downloadlinux-2cbc2776efe4faed0e17c48ae076aa03a0fcc61f.tar.xz
swiotlb: remove swiotlb_nr_tbl
All callers just use it to check if swiotlb is active at all, for which they can just use is_swiotlb_active. In the longer run drivers need to stop using is_swiotlb_active as well, but let's do the simple step first. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'kernel/dma')
-rw-r--r--kernel/dma/swiotlb.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 13de669a9b46..539c76beb52e 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -94,12 +94,6 @@ setup_io_tlb_npages(char *str)
}
early_param("swiotlb", setup_io_tlb_npages);
-unsigned long swiotlb_nr_tbl(void)
-{
- return io_tlb_default_mem ? io_tlb_default_mem->nslabs : 0;
-}
-EXPORT_SYMBOL_GPL(swiotlb_nr_tbl);
-
unsigned int swiotlb_max_segment(void)
{
return io_tlb_default_mem ? max_segment : 0;
@@ -652,6 +646,7 @@ bool is_swiotlb_active(void)
{
return io_tlb_default_mem != NULL;
}
+EXPORT_SYMBOL_GPL(is_swiotlb_active);
#ifdef CONFIG_DEBUG_FS