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Subject[PATCH 5.10 220/390] dyndbg: drop EXPORTed dynamic_debug_exec_queries
Date
From: Jim Cromie <jim.cromie@gmail.com>

[ Upstream commit e26ef3af964acfea311403126acee8c56c89e26b ]

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: a2d375eda771 ("dyndbg: refine export, rename to dynamic_debug_exec_queries()")
Fixes: 4c0d77828d4f ("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>
---
include/linux/dynamic_debug.h | 9 ---------
lib/dynamic_debug.c | 29 -----------------------------
2 files changed, 38 deletions(-)

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index b0b23679b2c2..c0c6ea9ea7e3 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -50,9 +50,6 @@ 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);
@@ -216,12 +213,6 @@ 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
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 02a1a6496375..10a50c03074e 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -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)
--
2.35.1


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