net/ipv5/tcp: use vma_lookup() in tcp_zerocopy_receive()
authorLiam Howlett <liam.howlett@oracle.com>
Tue, 29 Jun 2021 02:39:23 +0000 (19:39 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 29 Jun 2021 17:53:51 +0000 (10:53 -0700)
commit47bdd1db16e67ebfde6f77eaf7625b2292ae6d58
treecc3f84a4f075a0075918d445868ef147945f6f25
parent85715d6809014870a8a4d498b292fc5711a969e7
net/ipv5/tcp: use vma_lookup() in tcp_zerocopy_receive()

Use vma_lookup() to find the VMA at a specific address.  As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.

Link: https://lkml.kernel.org/r/20210521174745.2219620-13-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: David Miller <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
net/ipv4/tcp.c