Revision 1a6d80ff2419e8ad627b4bf4775a8b4c70af535d authored by Linus Torvalds on 26 August 2021, 18:26:00 UTC, committed by Linus Torvalds on 26 August 2021, 18:26:00 UTC
Pull arm64 fix from Will Deacon: "We received a report this week that the generic version of pfn_valid(), which we switched to this merge window in 16c9afc77660 ("arm64/mm: drop HAVE_ARCH_PFN_VALID"), interacts badly with dma_map_resource() due to the following check: /* Don't allow RAM to be mapped */ if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) return DMA_MAPPING_ERROR; Since the ongoing saga to determine the semantics of pfn_valid() is unlikely to be resolved this week (does it indicate valid memory, or just the presence of a struct page, or whether that struct page has been initialised?), just revert back to our old version of pfn_valid() for 5.14. Summary: - Fix dma_map_resource() by reverting back to old pfn_valid() code" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: Partially revert "arm64/mm: drop HAVE_ARCH_PFN_VALID"
File | Mode | Size |
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LICENSES | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | -rw-r--r-- | 16.6 KB |
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 71 bytes |
.gitattributes | -rw-r--r-- | 62 bytes |
.gitignore | -rw-r--r-- | 1.9 KB |
.mailmap | -rw-r--r-- | 19.7 KB |
COPYING | -rw-r--r-- | 496 bytes |
CREDITS | -rw-r--r-- | 98.6 KB |
Kbuild | -rw-r--r-- | 1.3 KB |
Kconfig | -rw-r--r-- | 555 bytes |
MAINTAINERS | -rw-r--r-- | 597.9 KB |
Makefile | -rw-r--r-- | 63.9 KB |
README | -rw-r--r-- | 727 bytes |
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