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authorLinus Torvalds2022-10-04 09:21:30 -0700
committerLinus Torvalds2022-10-04 09:21:30 -0700
commit7db99f01d1879f30af95f14dfd5cbcf009d15166 (patch)
treed3d9895db7877ecac37158f0094800f7cdbb2e52 /tools/objtool/check.c
parentba94a7a90008fd55c7ff1c5b4ca1853e6277dc37 (diff)
parentc926087eb38520b268515ae1a842db6db62554cc (diff)
Merge tag 'x86_cpu_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu updates from Borislav Petkov: - Print the CPU number at segfault time. The number printed is not always accurate (preemption is enabled at that time) but the print string contains "likely" and after a lot of back'n'forth on this, this was the consensus that was reached. See thread at [1]. - After a *lot* of testing and polishing, finally the clear_user() improvements to inline REP; STOSB by default Link: https://lore.kernel.org/r/5d62c1d0-7425-d5bb-ecb5-1dc3b4d7d245@intel.com [1] * tag 'x86_cpu_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Print likely CPU at segfault time x86/clear_user: Make it faster
Diffstat (limited to 'tools/objtool/check.c')
-rw-r--r--tools/objtool/check.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 48e18737a2d1..4a9ba6ab80d5 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1073,6 +1073,9 @@ static const char *uaccess_safe_builtin[] = {
"copy_mc_fragile_handle_tail",
"copy_mc_enhanced_fast_string",
"ftrace_likely_update", /* CONFIG_TRACE_BRANCH_PROFILING */
+ "clear_user_erms",
+ "clear_user_rep_good",
+ "clear_user_original",
NULL
};