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authorJim Cromie <jim.cromie@gmail.com>2012-04-28 00:30:34 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-30 22:05:27 +0400
commit9fb48c744ba6a4bf58b666f4e6fdac3008ea1bd4 (patch)
treef145e07824a3a9bae9f8da3e5c39ea5073bd872e /include/linux/moduleparam.h
parent3faa286055c02291dc9b6d838601dcb105a64a14 (diff)
downloadlinux-9fb48c744ba6a4bf58b666f4e6fdac3008ea1bd4.tar.xz
params: add 3rd arg to option handler callback signature
Add a 3rd arg, named "doing", to unknown-options callbacks invoked from parse_args(). The arg is passed as: "Booting kernel" from start_kernel(), initcall_level_names[i] from do_initcall_level(), mod->name from load_module(), via parse_args(), parse_one() parse_args() already has the "name" parameter, which is renamed to "doing" to better reflect current uses 1,2 above. parse_args() passes it to an altered parse_one(), which now passes it down into the unknown option handler callbacks. The mod->name will be needed to handle dyndbg for loadable modules, since params passed by modprobe are not qualified (they do not have a "$modname." prefix), and by the time the unknown-param callback is called, the module name is not otherwise available. Minor tweaks: Add param-name to parse_one's pr_debug(), current message doesnt identify the param being handled, add it. Add a pr_info to print current level and level_name of the initcall, and number of registered initcalls at that level. This adds 7 lines to dmesg output, like: initlevel:6=device, 172 registered initcalls Drop "parameters" from initcall_level_names[], its unhelpful in the pr_info() added above. This array is passed into parse_args() by do_initcall_level(). CC: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Acked-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/moduleparam.h')
-rw-r--r--include/linux/moduleparam.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index ea36486378d8..1b14d25162cb 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -320,7 +320,8 @@ extern int parse_args(const char *name,
unsigned num,
s16 level_min,
s16 level_max,
- int (*unknown)(char *param, char *val));
+ int (*unknown)(char *param, char *val,
+ const char *doing));
/* Called by module remove. */
#ifdef CONFIG_SYSFS