Thomas Weißschuh 9a6d3ff10f arm64: uapi: Provide correct __BITS_PER_LONG for the compat vDSO ... The generic vDSO library uses the UAPI headers. On arm64 __BITS_PER_LONG is always '64' even when used from the compat vDSO. In that case __GENMASK() does an illegal bitshift, invoking undefined behaviour. Change __BITS_PER_LONG to also work when used from the comapt vDSO. To not confuse real userspace, only do this when building the kernel. Reported-by: John Stultz <jstultz@google.com> Closes: https://lore.kernel.org/lkml/CANDhNCqvKOc9JgphQwr0eDyJiyG4oLFS9R8rSFvU0fpurrJFDg@mail.gmail.com/ Fixes: cd3557a761 ("vdso/gettimeofday: Add support for auxiliary clocks") Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: John Stultz <jstultz@google.com> Link: https://lore.kernel.org/r/20250821-vdso-arm64-compat-bitsperlong-v1-1-700bcabe7732@linutronix.de Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2025-09-03 12:07:23 +01:00
..
Kbuild	arm64: generate 64-bit syscall.tbl	2024-07-10 14:23:38 +02:00
auxvec.h	…
bitsperlong.h	arm64: uapi: Provide correct __BITS_PER_LONG for the compat vDSO	2025-09-03 12:07:23 +01:00
bpf_perf_event.h	…
byteorder.h	…
fcntl.h	…
hwcap.h	arm64/hwcaps: Add MTE_STORE_ONLY hwcaps	2025-07-02 18:49:04 +01:00
kvm.h	KVM: arm64: Allow userspace to limit the number of PMU counters for EL2 VMs	2025-04-11 13:08:23 +01:00
mman.h	arm64: implement PKEYS support	2024-09-04 12:54:04 +01:00
param.h	…
perf_regs.h	…
posix_types.h	…
ptrace.h	arm64/ptrace: Expose GCS via ptrace and core files	2024-10-04 12:04:41 +01:00
setup.h	…
sigcontext.h	arm64/signal: Expose GCS state in signal frames	2024-10-04 12:04:41 +01:00
signal.h	…
statfs.h	…
sve_context.h	…
ucontext.h	…
unistd.h	arm64: generate 64-bit syscall.tbl	2024-07-10 14:23:38 +02:00