On Sat, 16 Apr 2011 15:26:10 +0200, Alessio Igor Bogani <abog...@kernel.org>
wrote:
> Restructure code to better integrate future improvements.
I like all the rest, but I find the function names here a bit confusing.
How about using this (untested!) patch instead?
Thanks!
Rusty.
---
Subject: module: each_symbol_section instead of each_symbol
Instead of having a callback function for each symbol in the kernel,
have a callback for each array of symbols.
This eases the logic when we move to sorted symbols and binary search.
Signed-off-by: Rusty Russell <ru...@rustcorp.com.au>
diff --git a/include/linux/module.h b/include/linux/module.h
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -477,8 +477,9 @@ const struct kernel_symbol *find_symbol(
bool warn);
/* Walk the exported symbol table */
-bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner,
- unsigned int symnum, void *data), void *data);
+bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
+ struct module *owner,
+ void *data), void *data);
/* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
symnum out of range. */
diff --git a/kernel/module.c b/kernel/module.c
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -240,23 +240,24 @@ static bool each_symbol_in_section(const
struct module *owner,
bool (*fn)(const struct symsearch *syms,
struct module *owner,
- unsigned int symnum, void *data),
+ void *data),
void *data)
{
- unsigned int i, j;
+ unsigned int j;
for (j = 0; j < arrsize; j++) {
- for (i = 0; i < arr[j].stop - arr[j].start; i++)
- if (fn(&arr[j], owner, i, data))
- return true;
+ if (fn(&arr[j], owner, data))
+ return true;
}
return false;
}
/* Returns true as soon as fn returns true, otherwise false. */
-bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner,
- unsigned int symnum, void *data), void *data)
+bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
+ struct module *owner,
+ void *data),
+ void *data)
{
struct module *mod;
static const struct symsearch arr[] = {
@@ -309,7 +310,7 @@ bool each_symbol(bool (*fn)(const struct
}
return false;
}
-EXPORT_SYMBOL_GPL(each_symbol);
+EXPORT_SYMBOL_GPL(each_symbol_section);
struct find_symbol_arg {
/* Input */
@@ -323,9 +324,9 @@ struct find_symbol_arg {
const struct kernel_symbol *sym;
};
-static bool find_symbol_in_section(const struct symsearch *syms,
- struct module *owner,
- unsigned int symnum, void *data)
+static bool test_symbol_for_find(const struct symsearch *syms,
+ struct module *owner,
+ unsigned int symnum, void *data)
{
struct find_symbol_arg *fsa = data;
@@ -365,6 +366,19 @@ static bool find_symbol_in_section(const
return true;
}
+static bool find_symbol_in_section(const struct symsearch *syms,
+ struct module *owner,
+ void *data)
+{
+ unsigned int i;
+
+ for (i = 0; i < syms->stop - syms->start; i++) {
+ if (test_symbol_for_find(syms, owner, i, data))
+ return true;
+ }
+ return false;
+}
+
/* Find a symbol and return it, along with, (optional) crc and
* (optional) module which owns it. Needs preempt disabled or module_mutex. */
const struct kernel_symbol *find_symbol(const char *name,
@@ -379,7 +393,7 @@ const struct kernel_symbol *find_symbol(
fsa.gplok = gplok;
fsa.warn = warn;
- if (each_symbol(find_symbol_in_section, &fsa)) {
+ if (each_symbol_section(find_symbol_in_section, &fsa)) {
if (owner)
*owner = fsa.owner;
if (crc)
--
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