On Fri, Feb 08, 2008 at 06:20:52PM +0530, Kamalesh Babulal wrote:

Adrian Bunk wrote:

quoted

On Fri, Feb 08, 2008 at 04:02:59PM +0530, Kamalesh Babulal wrote:

quoted

Hi,

The 2.6.24-git18 kernel build fails on the power machine with following message

drivers/input/mouse/psmouse-base.c:44: error: __param_proto causes a section type conflict
drivers/input/mouse/psmouse-base.c:44: error: __param_proto causes a section type conflict
make[3]: *** [drivers/input/mouse/psmouse-base.o] Error 1
make[2]: *** [drivers/input/mouse] Error 2
make[1]: *** [drivers/input] Error 2
make: *** [drivers] Error 2

this failure was reported earlier http://lkml.org/lkml/2007/9/22/64

You need the patch from [1] manually applied (due to changed context) 
and with " || defined(__powerpc__)" added for getting it compiling.

@Rusty:
Can you look at this issue? It's a modules problem on 3 architectures.

cu
Adrian

[1] http://lkml.org/lkml/2007/12/27/29

I tried manually applying the patch and added ||defined(__powerpc__), the above
build failure was resolved but it started failing at another place, 

  CC      kernel/printk.o
kernel/printk.c:568: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘static’
make[1]: *** [kernel/printk.o] Error 1
make: *** [kernel] Error 2

Below is what worked for me (based on Ivan's patch).

The comment is wrong now, the #if's should refer to kconfig variables, 
and I don't know whether this patch is really the best solution.

cu
Adrian


1fffe660ace75bd875fc23f7b2121d7341f08464 diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 8126e55..d17ce12 100644

--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h

@@ -62,6 +62,15 @@ struct kparam_array
 	void *elem;
 };
 
+/* On alpha and ia64 relocations to global data cannot go into read-only
+   sections, so 'const' makes no sense and even causes compile failures
+   with some compilers. */
+#if defined(__alpha__) || defined(__ia64__) || defined(__powerpc__)
+#define __moduleparam_const
+#else
+#define __moduleparam_const const
+#endif
+
 /* This is the fundamental function for registering boot/module
    parameters.  perm sets the visibility in sysfs: 000 means it's
    not there, read bits mean it's readable, write bits mean it's

@@ -71,7 +80,7 @@ struct kparam_array
 	static int __param_perm_check_##name __attribute__((unused)) =	\
 	BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2));	\
 	static const char __param_str_##name[] = prefix #name;		\
-	static struct kernel_param const __param_##name			\
+	static struct kernel_param __moduleparam_const __param_##name			\
 	__used								\
     __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \
 	= { __param_str_##name, perm, set, get, { arg } }
-

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