objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
stable inclusion from stable-v5.10.133 commit df93717a32f57e1b033dbfa2a78809d7d4000648 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5PTAS CVE: CVE-2022-29900,CVE-2022-23816,CVE-2022-29901 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=df93717a32f57e1b033dbfa2a78809d7d4000648 -------------------------------- commit 8faea26e upstream. Commit c536ed2f ("objtool: Remove SAVE/RESTORE hints") removed the save/restore unwind hints because they were no longer needed. Now they're going to be needed again so re-add them. Signed-off-by: NJosh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: NBorislav Petkov <bp@suse.de> Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by: NBen Hutchings <ben@decadent.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NLin Yujun <linyujun809@huawei.com> Reviewed-by: NZhang Jianhua <chris.zjh@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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