macsec: allocate sg and iv on the heap

For the crypto callbacks to work properly, we cannot have sg and iv on
the stack.  Use kmalloc instead, with a single allocation for
aead_request + scatterlist + iv.

Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

path: root/privs.h

#ifndef PRIVS_H
#define PRIVS_H

#include <stdbool.h>

extern void drop_privileges(bool enforce, uid_t uid, gid_t gid);

#endif /* PRIVS_H */