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author | Marc Zyngier <maz@kernel.org> | 2021-11-17 11:35:32 +0000 |
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committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2021-12-10 17:47:00 +0100 |
commit | 1edb7e74a7d3d64dc4e69e7059b4eea526d19a10 (patch) | |
tree | 4a44d6d1970342cd2710381c9098474c1723d8d5 /samples/Kconfig | |
parent | a663bd19114d79f0902e2490fc484e5a7419cdc2 (diff) | |
download | linux-stable-1edb7e74a7d3d64dc4e69e7059b4eea526d19a10.tar.gz linux-stable-1edb7e74a7d3d64dc4e69e7059b4eea526d19a10.tar.bz2 linux-stable-1edb7e74a7d3d64dc4e69e7059b4eea526d19a10.zip |
clocksource/drivers/arm_arch_timer: Force inlining of erratum_set_next_event_generic()
With some specific kernel configuration and Clang, the kernel fails
to like with something like:
ld.lld: error: undefined symbol: __compiletime_assert_200
>>> referenced by arch_timer.h:156 (./arch/arm64/include/asm/arch_timer.h:156)
>>> clocksource/arm_arch_timer.o:(erratum_set_next_event_generic) in archive drivers/built-in.a
ld.lld: error: undefined symbol: __compiletime_assert_197
>>> referenced by arch_timer.h:133 (./arch/arm64/include/asm/arch_timer.h:133)
>>> clocksource/arm_arch_timer.o:(erratum_set_next_event_generic) in archive drivers/built-in.a
make: *** [Makefile:1161: vmlinux] Error 1
These are due to the BUILD_BUG() macros contained in the low-level
accessors (arch_timer_reg_{write,read}_cp15) being emitted, as the
access type wasn't known at compile time.
Fix this by making erratum_set_next_event_generic() __force_inline,
resulting in the 'access' parameter to be resolved at compile time,
similarly to what is already done for set_next_event().
Fixes: 4775bc63f880 ("Add build-time guards for unhandled register accesses")
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211117113532.3895208-1-maz@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'samples/Kconfig')
0 files changed, 0 insertions, 0 deletions