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swiotlb: remove swiotlb_nr_tbl

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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>
This commit is contained in:
Christoph Hellwig 2021-03-18 17:14:24 +01:00 • committed by Konrad Rzeszutek Wilk
parent 2d29960af0
commit 2cbc2776ef
5 changed files with 4 additions and 10 deletions
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1
include/linux/swiotlb.h
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@ -37,7 +37,6 @@ enum swiotlb_force {
extern void swiotlb_init(int verbose);
int swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose);
extern unsigned long swiotlb_nr_tbl(void);
unsigned long swiotlb_size_or_default(void);
extern int swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs);
extern int swiotlb_late_init_with_default_size(size_t default_size);