iov_iter: Mark copy_iovec_from_user() noclone
authorPeter Zijlstra <peterz@infradead.org>
Fri, 16 Jun 2023 12:43:55 +0000 (14:43 +0200)
committerPeter Zijlstra <peterz@infradead.org>
Mon, 10 Jul 2023 07:52:28 +0000 (09:52 +0200)
commit719a937b7003933de1298ffa4b881dd6a234e244
treeb60da666c621cee87ae01ceb925e3b60022d56aa
parent9f71fbcde2820f2af4658313e808cf1e579190a4
iov_iter: Mark copy_iovec_from_user() noclone

Extend commit 50f9a76ef127 ("iov_iter: Mark
copy_compat_iovec_from_user() noinline") to also cover
copy_iovec_from_user(). Different compiler versions cause the same
problem on different functions.

lib/iov_iter.o: warning: objtool: .altinstr_replacement+0x1f: redundant UACCESS disable
lib/iov_iter.o: warning: objtool: iovec_from_user+0x84: call to copy_iovec_from_user.part.0() with UACCESS enabled
lib/iov_iter.o: warning: objtool: __import_iovec+0x143: call to copy_iovec_from_user.part.0() with UACCESS enabled

Fixes: 50f9a76ef127 ("iov_iter: Mark copy_compat_iovec_from_user() noinline")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lkml.kernel.org/r/20230616124354.GD4253@hirez.programming.kicks-ass.net
lib/iov_iter.c