github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-22 14:12:07 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

dma-mapping fix for Linux 6.6

Browse Source 
- reduce the initialy dynamic swiotlb size to remove an annoying but
    harmless warning from the page allocator (Petr Tesarik)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAmU9Lt8LHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYM2DxAAt01E6LudY/THouSHpUri8HnDUeNLEY/3AppdMrLs
 gNs+KhBZqXJlRFbbIjiQCnzuKJg6fMQHjrPiMkXsAzq4vklQOfywSxtcWOsSCSTl
 pN2pY7nYuSBLlum0qkwu9E1rtfx1FN58Z0SlmsGUqCb0GbsmNEKhJcGz/peaQi0+
 /Y4mqr7O5OXFbzLZMtB86XCPpVDoyjGVWFUJB6Ruz82zbmMqXs1P7JGaiv/aFn0y
 Diy1iNUrhluCAVbskoNHcFTXU1uHn+7JrMJGS7Usj49OyqfKSK6nhMEh5Kpe6ATg
 szmMxBknHBOfEb+ciHzvSna44+hx845Z2ylMtRUn6IXmWNsdrYP4zTkV+W5ioMHn
 QaE4Il+VuxHBL0Hy6tLHDElP/7Xx9o+KS6PJ/56Q5Qi360ZmjQCGTzum//9r0JB0
 LPFmWN5TMBYGd0uBp9kddIUl2MPiXdHulK8CZgdC+4o/KOnjINACFjynyKKyEEW9
 HZqWu6aoKwCfcsr9Wz+CZVnpvxPoP5b+BpwOJntrdqNtVycUOIe4z3ILuw1Vfs9P
 zkZ61QDk4N3vwBiqEiGDBwYVX0pq4/e1YHbxBOuLKUlYbmnHHLxp+PXDxKiaVbJc
 FyZUtN8I4hzvpH6RnX/W/UUz02nBpxcnamHUnXOEBorV3tJatvxav2A4QQJbBuqo
 M4w=
 =8Jfz
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-6.6-2023-10-28' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fix from Christoph Hellwig:

 - reduce the initialy dynamic swiotlb size to remove an annoying but
   harmless warning from the page allocator (Petr Tesarik)

* tag 'dma-mapping-6.6-2023-10-28' of git://git.infradead.org/users/hch/dma-mapping:
  swiotlb: do not try to allocate a TLB bigger than MAX_ORDER pages
This commit is contained in:
Linus Torvalds 2023-10-28 08:01:31 -10:00
commit bd80d2ef59
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
kernel/dma/swiotlb.c
View File

@ -678,6 +678,11 @@ static struct io_tlb_pool *swiotlb_alloc_pool(struct device *dev,
size_t pool_size;
size_t tlb_size;
if (nslabs > SLABS_PER_PAGE << MAX_ORDER) {
nslabs = SLABS_PER_PAGE << MAX_ORDER;
nareas = limit_nareas(nareas, nslabs);
}
pool_size = sizeof(*pool) + array_size(sizeof(*pool->areas), nareas);
pool = kzalloc(pool_size, gfp);
if (!pool)