On Mon, Feb 26, 2024 at 05:14:14PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <a...@arndb.de>
>
> 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 <l...@linaro.org>
> Fixes: a0d2fcd62ac2 ("vdso/ARM: Make union vdso_data_store available for all
> architectures")
> Link:
> https://lore.kernel.org/lkml/ca+g9fytrxxm_ko9fnpz3xarxhv7ud_yqp-teupqrnrhu+_0...@mail.gmail.com/
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
Acked-by: Catalin Marinas <catalin.mari...@arm.com>
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