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iov_iter: Mark copy_iovec_from_user() noclone 

[ Upstream commit 719a937b70 ]

Extend commit 50f9a76ef1 ("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: 50f9a76ef1 ("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
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Peter Zijlstra 2023-06-16 14:43:55 +02:00 committed by Greg Kroah-Hartman
parent ea5f73dc7e
commit 04db1d8aa6
1 changed files with 1 additions and 1 deletions
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2
lib/iov_iter.c
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@ -1795,7 +1795,7 @@ uaccess_end:
return ret;
}
static int copy_iovec_from_user(struct iovec *iov,
static __noclone int copy_iovec_from_user(struct iovec *iov,
const struct iovec __user *uiov, unsigned long nr_segs)
{
int ret = -EFAULT;