linux-kernel - [PATCH v3 09/19] dyndbg: constify ddebug_apply_class

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Date:   Wed, 25 Jan 2023 13:37:33 -0700
From:   Jim Cromie <jim.cromie@...il.com>
To:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        amd-gfx@...ts.freedesktop.org, intel-gvt-dev@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org
Cc:     jani.nikula@...el.com, ville.syrjala@...ux.intel.com,
        daniel.vetter@...ll.ch, seanpaul@...omium.org, robdclark@...il.com,
        Jim Cromie <jim.cromie@...il.com>
Subject: [PATCH v3 09/19] dyndbg: constify ddebug_apply_class_bitmap args

ddebug_apply_class_bitmap() does not alter its 2 bitmap args, make
this guarantee in the interface.

NOTE: the bitmap is also available in the dcp arg, but the 2 vars
serve a 2nd purpose; the CLASS_TYPE callers use them to translate
levels into their underlying disjoint representation.

no functional change

Signed-off-by: Jim Cromie <jim.cromie@...il.com>
---
 lib/dynamic_debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 10c29bc19901..b51f4bde6198 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -592,7 +592,7 @@ static int ddebug_exec_queries(char *query, const char *modname)
 
 /* apply a new bitmap to the sys-knob's current bit-state */
 static int ddebug_apply_class_bitmap(const struct ddebug_class_param *dcp,
-				     unsigned long *new_bits, unsigned long *old_bits,
+				     const unsigned long *new_bits, const unsigned long *old_bits,
 				     const char *query_modname)
 {
 #define QUERY_SIZE 128
-- 
2.39.1