tree ddf4ba930c9f3a07dbe8dcdfbb54c8d635dbbfac
parent 4c22f2c589d98d2b1dadc262ab6dcee94482b5e2
author Jason A. Donenfeld <Jason@zx2c4.com> 1644625577 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1656150309 +0200

random: do not take pool spinlock at boot

commit afba0b80b977b2a8f16234f2acd982f82710ba33 upstream.

Since rand_initialize() is run while interrupts are still off and
nothing else is running, we don't need to repeatedly take and release
the pool spinlock, especially in the RDSEED loop.

Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>