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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-17 11:23:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-17 11:23:24 +0200 |
| commit | a954e5fb4bc2d401b8fc3b4c7cd316497ff80225 (patch) | |
| tree | 06af23b232c7c2e795a2fef8a5a0604ec64d5092 /include/linux/mm.h | |
| parent | e137d34f94ebcb6508d7c8614ac045583fffbe2a (diff) | |
| parent | 9e0babf2c06c73cda2c0cd37a1653d823adb40ec (diff) | |
Merge 5.2-rc5 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 0e8834ac32b7..dd0b5f4e1e45 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -99,6 +99,17 @@ extern int mmap_rnd_compat_bits __read_mostly; #include <asm/pgtable.h> #include <asm/processor.h> +/* + * Architectures that support memory tagging (assigning tags to memory regions, + * embedding these tags into addresses that point to these memory regions, and + * checking that the memory and the pointer tags match on memory accesses) + * redefine this macro to strip tags from pointers. + * It's defined as noop for arcitectures that don't support memory tagging. + */ +#ifndef untagged_addr +#define untagged_addr(addr) (addr) +#endif + #ifndef __pa_symbol #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0)) #endif |