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Message-ID: <1433376236-7347-1-git-send-email-paul.gortmaker@windriver.com>
Date: Wed, 3 Jun 2015 20:03:56 -0400
From: Paul Gortmaker <paul.gortmaker@...driver.com>
To: <linux-kernel@...r.kernel.org>
CC: Paul Gortmaker <paul.gortmaker@...driver.com>,
Pratik Patel <pratikp@...eaurora.org>,
Kaixu Xia <xiakaixu@...wei.com>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH staging] drivers/hwtracing: fix coresight-etm4x implicit <module.h> usage
In commit 2e1cdfe184b5202d51e0611d7a051e2bea303946 ("coresight-etm4x:
Adding CoreSight ETM4x driver") this driver was added.
It uses module_amba_driver() to register itself with the system,
which is just an alias for module_driver. This currently works by
relying on getting that via init.h but we are planning to move that
code[1] to module.h -- at which time this will fail to compile since
it does not include module.h currently, resulting in:
drivers/hwtracing/coresight/coresight-etm4x.c:2701:1: note: in expansion of macro ‘module_amba_driver’
module_amba_driver(etm4x_driver);
^
include/linux/device.h:1296:1: error: type defaults to ‘int’ in declaration of ‘module_init’ [-Werror=implicit-int]
module_init(__driver##_init); \
^
In the future, the amba support may want to create another alias that
uses builtin_driver[2] for cases like this which are using bool Kconfig
triggers, but for now we just fix the implicit include.
[1] https://lkml.kernel.org/r/1433276168-21550-1-git-send-email-paul.gortmaker@windriver.com
[2] https://lkml.kernel.org/r/1431287385-1526-1-git-send-email-paul.gortmaker@windriver.com
Cc: Pratik Patel <pratikp@...eaurora.org>
Cc: Kaixu Xia <xiakaixu@...wei.com>
Cc: Mathieu Poirier <mathieu.poirier@...aro.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
[Note: Commit 2e1cdfe184b520 is only in linux-next trees via staging-next;
this fixes a next build fail when staging-next is merged with [1] above.]
drivers/hwtracing/coresight/coresight-etm4x.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index f0b50af4fc30..1312e993c501 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
+#include <linux/module.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/fs.h>
--
2.2.1
--
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