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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2024-08-27 09:31:47 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2024-09-13 17:28:35 +0200 |
| commit | 7f053812dab3946cb704520b72c381f605ecdf95 (patch) | |
| tree | 31b237d930e822d2d2e5e26fae49e0416b80abe4 /include/vdso/helpers.h | |
| parent | random: vDSO: avoid call to out of line memset() (diff) | |
| download | linux-7f053812dab3946cb704520b72c381f605ecdf95.tar.xz linux-7f053812dab3946cb704520b72c381f605ecdf95.zip | |
random: vDSO: minimize and simplify header includes
Depending on the architecture, building a 32-bit vDSO on a 64-bit kernel
is problematic when some system headers are included.
Minimise the amount of headers by moving needed items, such as
__{get,put}_unaligned_t, into dedicated common headers and in general
use more specific headers, similar to what was done in commit
8165b57bca21 ("linux/const.h: Extract common header for vDSO") and
commit 8c59ab839f52 ("lib/vdso: Enable common headers").
On some architectures this results in missing PAGE_SIZE, as was
described by commit 8b3843ae3634 ("vdso/datapage: Quick fix - use
asm/page-def.h for ARM64"), so define this if necessary, in the same way
as done prior by commit cffaefd15a8f ("vdso: Use CONFIG_PAGE_SHIFT in
vdso/datapage.h").
Removing linux/time64.h leads to missing 'struct timespec64' in
x86's asm/pvclock.h. Add a forward declaration of that struct in
that file.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'include/vdso/helpers.h')
| -rw-r--r-- | include/vdso/helpers.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/vdso/helpers.h b/include/vdso/helpers.h index 73501149439d..3ddb03bb05cb 100644 --- a/include/vdso/helpers.h +++ b/include/vdso/helpers.h @@ -4,6 +4,7 @@ #ifndef __ASSEMBLY__ +#include <asm/barrier.h> #include <vdso/datapage.h> static __always_inline u32 vdso_read_begin(const struct vdso_data *vd) |