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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-13 03:31:19 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-13 03:31:19 +0300 |
| commit | 64ad9461521b1a357846ef6cedc4bccd48a046e0 (patch) | |
| tree | f134404b6c6df89198a4a2f2be6fef21af133c73 /samples/ftrace/ftrace-direct.c | |
| parent | 8e5b0adeea19309c8ce0e3c9119061554973efa9 (diff) | |
| parent | 9cdbeec4096804083944d05da96bbaf59a1eb4f9 (diff) | |
| download | linux-64ad9461521b1a357846ef6cedc4bccd48a046e0.tar.xz | |
Merge tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 core updates from Borislav Petkov:
- Get rid of all the .fixup sections because this generates
misleading/wrong stacktraces and confuse RELIABLE_STACKTRACE and
LIVEPATCH as the backtrace misses the function which is being fixed
up.
- Add Straight Line Speculation mitigation support which uses a new
compiler switch -mharden-sls= which sticks an INT3 after a RET or an
indirect branch in order to block speculation after them. Reportedly,
CPUs do speculate behind such insns.
- The usual set of cleanups and improvements
* tag 'x86_core_for_v5.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
x86/entry_32: Fix segment exceptions
objtool: Remove .fixup handling
x86: Remove .fixup section
x86/word-at-a-time: Remove .fixup usage
x86/usercopy: Remove .fixup usage
x86/usercopy_32: Simplify __copy_user_intel_nocache()
x86/sgx: Remove .fixup usage
x86/checksum_32: Remove .fixup usage
x86/vmx: Remove .fixup usage
x86/kvm: Remove .fixup usage
x86/segment: Remove .fixup usage
x86/fpu: Remove .fixup usage
x86/xen: Remove .fixup usage
x86/uaccess: Remove .fixup usage
x86/futex: Remove .fixup usage
x86/msr: Remove .fixup usage
x86/extable: Extend extable functionality
x86/entry_32: Remove .fixup usage
x86/entry_64: Remove .fixup usage
x86/copy_mc_64: Remove .fixup usage
...
Diffstat (limited to 'samples/ftrace/ftrace-direct.c')
| -rw-r--r-- | samples/ftrace/ftrace-direct.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c index c918b13edb49..8b551e503a48 100644 --- a/samples/ftrace/ftrace-direct.c +++ b/samples/ftrace/ftrace-direct.c @@ -27,7 +27,7 @@ asm ( " call my_direct_func\n" " popq %rdi\n" " leave\n" -" ret\n" + ASM_RET " .size my_tramp, .-my_tramp\n" " .popsection\n" ); |