linux-kernel - [PATCH 5/8] staging: fsl-mc: Remove unnecessary dependency

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Message-ID: <1516108750-24938-6-git-send-email-bogdan.purcareata@nxp.com>
Date:   Tue, 16 Jan 2018 15:19:07 +0200
From:   Bogdan Purcareata <bogdan.purcareata@....com>
To:     <gregkh@...uxfoundation.org>, <laurentiu.tudor@....com>,
        <ruxandra.radulescu@....com>
CC:     <stuyoder@...il.com>, <arnd@...db.de>, <robh@...nel.org>,
        <ioana.ciornei@....com>, <nipun.gupta@....com>,
        <roy.pledge@....com>, <horia.geanta@....com>,
        <marc.zyngier@....com>, <tglx@...utronix.de>,
        <jason@...edaemon.net>, <bogdan.purcareata@....com>,
        <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 5/8] staging: fsl-mc: Remove unnecessary dependency

From: Ioana Radulescu <ruxandra.radulescu@....com>

The function that enables fsl-mc msi interrupts doesn't need
to be explicitly called from the fsl-mc bus driver initialization
routine.

Mark it to be independently called at system init; this is in line
with how things are handled by other GICv3 irqchip users.

Due to this change we now have an unused cleanup function, so
remove it.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@....com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@....com>
---
 drivers/staging/fsl-mc/bus/fsl-mc-allocator.c          | 5 -----
 drivers/staging/fsl-mc/bus/fsl-mc-bus.c                | 7 -------
 drivers/staging/fsl-mc/bus/fsl-mc-private.h            | 4 ----
 drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c | 2 ++
 4 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
index 041d341..b9f5a56 100644
--- a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
@@ -647,8 +647,3 @@ int __init fsl_mc_allocator_driver_init(void)
 {
 	return fsl_mc_driver_register(&fsl_mc_allocator_driver);
 }
-
-void fsl_mc_allocator_driver_exit(void)
-{
-	fsl_mc_driver_unregister(&fsl_mc_allocator_driver);
-}
diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
index 0d010aa..9cb08c2 100644
--- a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
@@ -932,15 +932,8 @@ static int __init fsl_mc_bus_driver_init(void)
 	if (error < 0)
 		goto error_cleanup_dprc_driver;
 
-	error = its_fsl_mc_msi_init();
-	if (error < 0)
-		goto error_cleanup_mc_allocator;
-
 	return 0;
 
-error_cleanup_mc_allocator:
-	fsl_mc_allocator_driver_exit();
-
 error_cleanup_dprc_driver:
 	dprc_driver_exit();
 
diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-private.h b/drivers/staging/fsl-mc/bus/fsl-mc-private.h
index a74186e..7e50cd4 100644
--- a/drivers/staging/fsl-mc/bus/fsl-mc-private.h
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-private.h
@@ -439,8 +439,6 @@ void dprc_driver_exit(void);
 
 int __init fsl_mc_allocator_driver_init(void);
 
-void fsl_mc_allocator_driver_exit(void);
-
 void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
 
 void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
@@ -457,8 +455,6 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev,
 
 void fsl_mc_msi_domain_free_irqs(struct device *dev);
 
-int __init its_fsl_mc_msi_init(void);
-
 int fsl_mc_find_msi_domain(struct device *mc_platform_dev,
 			   struct irq_domain **mc_msi_domain);
 
diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
index 097c401f..506fce1 100644
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
@@ -97,3 +97,5 @@ int __init its_fsl_mc_msi_init(void)
 
 	return 0;
 }
+
+early_initcall(its_fsl_mc_msi_init);
-- 
2.7.4