[PATCH] mseal: remove can_do_mseal

[jeffxu@chromium.org]

From: Jeff Xu <jeffxu@google.com>

Hi Andrew,

Is that possible to squash this change on top of 
"mseal: move can_do_mseal to mseal.c" on the mm-unstable ?

This is the first time I m doing this, because I saw dev did this before,
and saying this is the prefered approach.

I could also send v2 which is what I usually do.

Thanks
-Jeff

Signed-off-by: Jeff Xu <jeffxu@chromium.org>
---
 mm/mseal.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/mseal.c b/mm/mseal.c
index e167220a0bf0..08e6f328d9c7 100644
--- a/mm/mseal.c
+++ b/mm/mseal.c
@@ -225,9 +225,9 @@ int do_mseal(unsigned long start, size_t len_in, unsigned long flags)
 	unsigned long end;
 	struct mm_struct *mm = current->mm;
 
-	ret = can_do_mseal(flags);
-	if (ret)
-		return ret;
+	/* Verify flags not set. */
+	if (flags)
+		return -EINVAL;
 
 	start = untagged_addr(start);
 	if (!PAGE_ALIGNED(start))
-- 
2.47.0.338.g60cca15819-goog