[PATCH 20/73] arm: use subsys_initcall in non-modular pl320 IPC code

Paul Gortmaker
2014-01-21T21:22:23Z

The drivers/mailbox/pl320-ipc.o is dependent on config PL320_MBOX
which is declared as a bool. Hence the code is never going to be
modular. So using module_init as an alias for __initcall can be
somewhat misleading.

Fix this up now, so that we can relocate module_init from
init.h into module.h in the future. If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing. Also add an inclusion of init.h, as
that was previously implicit.

Note that direct use of __initcall is discouraged, vs. one
of the priority categorized subgroups. As __initcall gets
mapped onto device_initcall, our use of subsys_initcall (which
seems to make sense for netfilter code) will thus change this
registration from level 6-device to level 4-subsys (i.e. slightly
earlier). However no impact of that small difference is expected.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
drivers/mailbox/pl320-ipc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/pl320-ipc.c b/drivers/mailbox/pl320-ipc.c
index d873cba..b2737a2 100644
--- a/drivers/mailbox/pl320-ipc.c
+++ b/drivers/mailbox/pl320-ipc.c
@@ -195,4 +195,4 @@ static int __init ipc_init(void)
{
return amba_driver_register(&pl320_driver);
}
-module_init(ipc_init);
+subsys_initcall(ipc_init);
--
1.8.4.1