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dyndbg: drop EXPORTed dynamic_debug_exec_queries 

[ Upstream commit e26ef3af96 ]

This exported fn is unused, and will not be needed. Lets dump it.

The export was added to let drm control pr_debugs, as part of using
them to avoid drm_debug_enabled overheads.  But its better to just
implement the drm.debug bitmap interface, then its available for
everyone.

Fixes: a2d375eda7 ("dyndbg: refine export, rename to dynamic_debug_exec_queries()")
Fixes: 4c0d77828d ("dyndbg: export ddebug_exec_queries")
Acked-by: Jason Baron <jbaron@akamai.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Link: https://lore.kernel.org/r/20220904214134.408619-10-jim.cromie@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jim Cromie 2022-09-04 15:40:46 -06:00 committed by Greg Kroah-Hartman
parent 0d4421f2cb
commit aecb632674
2 changed files with 0 additions and 38 deletions
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9
include/linux/dynamic_debug.h
View File

@ -55,9 +55,6 @@ struct _ddebug {
#if defined(CONFIG_DYNAMIC_DEBUG_CORE)
/* exported for module authors to exercise >control */
int dynamic_debug_exec_queries(const char *query, const char *modname);
int ddebug_add_module(struct _ddebug *tab, unsigned int n,
const char *modname);
extern int ddebug_remove_module(const char *mod_name);
@ -221,12 +218,6 @@ static inline int ddebug_dyndbg_module_param_cb(char *param, char *val,
rowsize, groupsize, buf, len, ascii); \
} while (0)
static inline int dynamic_debug_exec_queries(const char *query, const char *modname)
{
pr_warn("kernel not built with CONFIG_DYNAMIC_DEBUG_CORE\n");
return 0;
}
#endif /* !CONFIG_DYNAMIC_DEBUG_CORE */
#endif

29
lib/dynamic_debug.c
View File

@ -552,35 +552,6 @@ static int ddebug_exec_queries(char *query, const char *modname)
return nfound;
}
/**
* dynamic_debug_exec_queries - select and change dynamic-debug prints
* @query: query-string described in admin-guide/dynamic-debug-howto
* @modname: string containing module name, usually &module.mod_name
*
* This uses the >/proc/dynamic_debug/control reader, allowing module
* authors to modify their dynamic-debug callsites. The modname is
* canonically struct module.mod_name, but can also be null or a
* module-wildcard, for example: "drm*".
*/
int dynamic_debug_exec_queries(const char *query, const char *modname)
{
int rc;
char *qry; /* writable copy of query */
if (!query) {
pr_err("non-null query/command string expected\n");
return -EINVAL;
}
qry = kstrndup(query, PAGE_SIZE, GFP_KERNEL);
if (!qry)
return -ENOMEM;
rc = ddebug_exec_queries(qry, modname);
kfree(qry);
return rc;
}
EXPORT_SYMBOL_GPL(dynamic_debug_exec_queries);
#define PREFIX_SIZE 64
static int remaining(int wrote)