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arch: Remove cmpxchg_double

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No moar users, remove the monster.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230531132323.991907085@infradead.org
This commit is contained in:
Peter Zijlstra
2023-05-31 15:08:44 +02:00
parent 6801be4f26
commit febe950dbf
15 changed files with 5 additions and 371 deletions
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15
scripts/atomic/gen-atomic-instrumented.sh
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@@ -84,7 +84,6 @@ gen_xchg()
{
local xchg="$1"; shift
local order="$1"; shift
local mult="$1"; shift
kcsan_barrier=""
if [ "${xchg%_local}" = "${xchg}" ]; then
@@ -104,8 +103,8 @@ cat <<EOF
EOF
[ -n "$kcsan_barrier" ] && printf "\t${kcsan_barrier}; \\\\\n"
cat <<EOF
instrument_atomic_read_write(__ai_ptr, ${mult}sizeof(*__ai_ptr)); \\
instrument_read_write(__ai_oldp, ${mult}sizeof(*__ai_oldp)); \\
instrument_atomic_read_write(__ai_ptr, sizeof(*__ai_ptr)); \\
instrument_read_write(__ai_oldp, sizeof(*__ai_oldp)); \\
arch_${xchg}${order}(__ai_ptr, __ai_oldp, __VA_ARGS__); \\
})
EOF
@@ -168,22 +167,16 @@ done
for xchg in "xchg" "cmpxchg" "cmpxchg64" "cmpxchg128" "try_cmpxchg" "try_cmpxchg64" "try_cmpxchg128"; do
for order in "" "_acquire" "_release" "_relaxed"; do
gen_xchg "${xchg}" "${order}" ""
gen_xchg "${xchg}" "${order}"
printf "\n"
done
done
for xchg in "cmpxchg_local" "cmpxchg64_local" "cmpxchg128_local" "sync_cmpxchg" "try_cmpxchg_local" "try_cmpxchg64_local" "try_cmpxchg128_local"; do
gen_xchg "${xchg}" "" ""
gen_xchg "${xchg}" ""
printf "\n"
done
gen_xchg "cmpxchg_double" "" "2 * "
printf "\n\n"
gen_xchg "cmpxchg_double_local" "" "2 * "
cat <<EOF
#endif /* _LINUX_ATOMIC_INSTRUMENTED_H */