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-rw-r--r--include/linux/moduleparam.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 8126e55c5bd..ec624381c84 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -62,6 +62,16 @@ struct kparam_array
void *elem;
};
+/* On alpha, ia64 and ppc64 relocations to global data cannot go into
+ read-only sections (which is part of respective UNIX ABI on these
+ platforms). So 'const' makes no sense and even causes compile failures
+ with some compilers. */
+#if defined(CONFIG_ALPHA) || defined(CONFIG_IA64) || defined(CONFIG_PPC64)
+#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 +81,7 @@ 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 } }