On Mon, Feb 26, 2024 at 05:14:14PM +0100, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@xxxxxxxx>
The recent change to the vdso_data_store broke building compat VDSO
on at least arm64 because it includes headers outside of the include/vdso/
namespace:
In file included from arch/arm64/include/asm/lse.h:5,
from arch/arm64/include/asm/cmpxchg.h:14,
from arch/arm64/include/asm/atomic.h:16,
from include/linux/atomic.h:7,
from include/asm-generic/bitops/atomic.h:5,
from arch/arm64/include/asm/bitops.h:25,
from include/linux/bitops.h:68,
from arch/arm64/include/asm/memory.h:209,
from arch/arm64/include/asm/page.h:46,
from include/vdso/datapage.h:22,
from lib/vdso/gettimeofday.c:5,
from <command-line>:
arch/arm64/include/asm/atomic_ll_sc.h:298:9: error: unknown type name 'u128'
298 | u128 full;
Use an open-coded page size calculation based on the new CONFIG_PAGE_SHIFT
Kconfig symbol instead.
Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Fixes: a0d2fcd62ac2 ("vdso/ARM: Make union vdso_data_store available for all architectures")
Link: https://lore.kernel.org/lkml/CA+G9fYtrXXm_KO9fNPz3XaRxHV7UD_yQp-TEuPQrNRHU+_0W_Q@xxxxxxxxxxxxxx/
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
