Hello,
I found the symbol_get()/symbol_put() didn't work on my 2.5.49 build.
I think the root cause is a wrong macro definition. The following patch
could
fix this bug.
diff -Naur -X dontdiff linux-2.5.49/include/linux/module.h
linux-2.5.49-bugfix/include/linux/module.h
--- linux-2.5.49/include/linux/module.h 2002-11-26 16:06:36.000000000 +0800
+++ linux-2.5.49-bugfix/include/linux/module.h 2002-11-26
16:01:52.000000000 +0800
@@ -86,7 +86,7 @@
/* Get/put a kernel symbol (calls must be symmetric) */
void *__symbol_get(const char *symbol);
void *__symbol_get_gpl(const char *symbol);
-#define symbol_get(x) ((typeof(&x))(__symbol_get(#x)))
+#define symbol_get(x) ((typeof(&x))(__symbol_get(x)))
/* For every exported symbol, place a struct in the __ksymtab section */
#define EXPORT_SYMBOL(sym) \
@@ -166,7 +166,7 @@
#ifdef CONFIG_MODULE_UNLOAD
void __symbol_put(const char *symbol);
-#define symbol_put(x) __symbol_put(#x)
+#define symbol_put(x) __symbol_put(x)
void symbol_put_addr(void *addr);
/* We only need protection against local interrupts. */
Your Sincerely,
Stanley Wang
SW Engineer, Intel Corporation.
Intel China Software Lab.
Tel: 021-52574545 ext. 1171
iNet: 8-752-1171
Opinions expressed are those of the author and do not represent Intel
Corporation
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