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Message-ID: <20150521224937.GA35078@dtor-ws>
Date: Thu, 21 May 2015 15:49:37 -0700
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Rusty Russell <rusty@...tcorp.com.au>,
"Luis R. Rodriguez" <mcgrof@...e.com>,
Stephen Rothwell <sfr@...b.auug.org.au>,
kbuild test robot <fengguang.wu@...el.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH] driver-core: fix build for !CONFIG_MODULES
Commit f2411da74698 ("driver-core: add driver module asynchronous probe
support") broke build in case modules are disabled, because in this case
"struct module" is not defined and we can't dereference it. Let's define
module_requested_async_probing() helper and stub it out if modules are
disabled.
Reported-by: kbuild test robot <fengguang.wu@...el.com>
Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
drivers/base/dd.c | 2 +-
include/linux/module.h | 12 ++++++++++++
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 42e97d9..8da8e07 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -427,7 +427,7 @@ bool driver_allows_async_probing(struct device_driver *drv)
return false;
default:
- if (drv->owner && drv->owner->async_probe_requested)
+ if (module_requested_async_probing(drv->owner))
return true;
return false;
diff --git a/include/linux/module.h b/include/linux/module.h
index 2e747e0..e6857d9 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -510,6 +511,11 @@ int unregister_module_notifier(struct notifier_block *nb);
extern void print_modules(void);
+static inline bool module_requested_async_probing(struct module *module)
+{
+ return module && module->async_probe_requested;
+}
+
#else /* !CONFIG_MODULES... */
/* Given an address, look for it in the exception tables. */
@@ -620,6 +626,12 @@ static inline int unregister_module_notifier(struct notifier_block *nb)
static inline void print_modules(void)
{
}
+
+static inline bool module_requested_async_probing(struct module *module)
+{
+ return false;
+}
+
#endif /* CONFIG_MODULES */
#ifdef CONFIG_SYSFS
--
2.2.0.rc0.207.ga3a616c
--
Dmitry
--
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