From: Jim Cromie <jim.cromie@gmail.com>
To: jbaron@akamai.com, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
amd-gfx@lists.freedesktop.org,
intel-gvt-dev@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org
Cc: ukaszb@chromium.org, linux-doc@vger.kernel.org,
daniel.vetter@ffwll.ch, tvrtko.ursulin@linux.intel.com,
jani.nikula@intel.com, ville.syrjala@linux.intel.com,
seanpaul@chromium.org, robdclark@gmail.com, groeck@google.com,
yanivt@google.com, bleung@google.com,
Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH v8 08/35] dyndbg: split param_set_dyndbg_classes to _module & wrapper fns
Date: Mon, 29 Apr 2024 13:31:18 -0600 [thread overview]
Message-ID: <20240429193145.66543-9-jim.cromie@gmail.com> (raw)
In-Reply-To: <20240429193145.66543-1-jim.cromie@gmail.com>
Split api-fn: param_set_dyndbg_classes(), adding modname param and
passing NULL in from api-fn.
The new arg allows caller to specify that only one module is affected
by a prdbgs update. This selectivity will be used later to narrow the
scope of changes made.
no functional change.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
lib/dynamic_debug.c | 37 ++++++++++++++++++++++---------------
1 file changed, 22 insertions(+), 15 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index a1fd2e9dbafb..4a48f830507f 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -711,18 +711,9 @@ static int param_set_dyndbg_classnames(const char *instr, const struct kernel_pa
return 0;
}
-/**
- * param_set_dyndbg_classes - class FOO >control
- * @instr: string echo>d to sysfs, input depends on map_type
- * @kp: kp->arg has state: bits/lvl, map, map_type
- *
- * Enable/disable prdbgs by their class, as given in the arguments to
- * DECLARE_DYNDBG_CLASSMAP. For LEVEL map-types, enforce relative
- * levels by bitpos.
- *
- * Returns: 0 or <0 if error.
- */
-int param_set_dyndbg_classes(const char *instr, const struct kernel_param *kp)
+static int param_set_dyndbg_module_classes(const char *instr,
+ const struct kernel_param *kp,
+ const char *modnm)
{
const struct ddebug_class_param *dcp = kp->arg;
const struct ddebug_class_map *map = dcp->map;
@@ -759,8 +750,8 @@ int param_set_dyndbg_classes(const char *instr, const struct kernel_param *kp)
KP_NAME(kp), inrep, CLASSMAP_BITMASK(map->length));
inrep &= CLASSMAP_BITMASK(map->length);
}
- v2pr_info("bits:%lx > %s\n", inrep, KP_NAME(kp));
- totct += ddebug_apply_class_bitmap(dcp, &inrep, dcp->bits, NULL);
+ v2pr_info("bits:0x%lx > %s.%s\n", inrep, modnm ?: "*", KP_NAME(kp));
+ totct += ddebug_apply_class_bitmap(dcp, &inrep, dcp->bits, modnm);
*dcp->bits = inrep;
break;
case DD_CLASS_TYPE_LEVEL_NUM:
@@ -773,7 +764,7 @@ int param_set_dyndbg_classes(const char *instr, const struct kernel_param *kp)
old_bits = CLASSMAP_BITMASK(*dcp->lvl);
new_bits = CLASSMAP_BITMASK(inrep);
v2pr_info("lvl:%ld bits:0x%lx > %s\n", inrep, new_bits, KP_NAME(kp));
- totct += ddebug_apply_class_bitmap(dcp, &new_bits, &old_bits, NULL);
+ totct += ddebug_apply_class_bitmap(dcp, &new_bits, &old_bits, modnm);
*dcp->lvl = inrep;
break;
default:
@@ -782,6 +773,22 @@ int param_set_dyndbg_classes(const char *instr, const struct kernel_param *kp)
vpr_info("%s: total matches: %d\n", KP_NAME(kp), totct);
return 0;
}
+
+/**
+ * param_set_dyndbg_classes - class FOO >control
+ * @instr: string echo>d to sysfs, input depends on map_type
+ * @kp: kp->arg has state: bits/lvl, map, map_type
+ *
+ * Enable/disable prdbgs by their class, as given in the arguments to
+ * DECLARE_DYNDBG_CLASSMAP. For LEVEL map-types, enforce relative
+ * levels by bitpos.
+ *
+ * Returns: 0 or <0 if error.
+ */
+int param_set_dyndbg_classes(const char *instr, const struct kernel_param *kp)
+{
+ return param_set_dyndbg_module_classes(instr, kp, NULL);
+}
EXPORT_SYMBOL(param_set_dyndbg_classes);
/**
--
2.44.0
next prev parent reply other threads:[~2024-04-29 19:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 19:31 [PATCH v8 00/35] fix CONFIG_DRM_USE_DYNAMIC_DEBUG=y regression Jim Cromie
2024-04-29 19:31 ` [PATCH v8 01/35] dyndbg: fix old BUG_ON in >control parser Jim Cromie
2024-04-29 19:31 ` [PATCH v8 02/35] docs/dyndbg: update examples \012 to \n Jim Cromie
2024-04-29 19:31 ` [PATCH v8 03/35] test-dyndbg: fixup CLASSMAP usage error Jim Cromie
2024-04-29 19:31 ` [PATCH v8 04/35] dyndbg: reword "class unknown," to "class:_UNKNOWN_" Jim Cromie
2024-04-29 19:31 ` [PATCH v8 05/35] dyndbg: make ddebug_class_param union members same size Jim Cromie
2024-04-29 19:31 ` [PATCH v8 06/35] dyndbg: replace classmap list with a vector Jim Cromie
2024-04-29 19:31 ` [PATCH v8 07/35] dyndbg: ddebug_apply_class_bitmap - add module arg, select on it Jim Cromie
2024-04-29 19:31 ` Jim Cromie [this message]
2024-04-29 19:31 ` [PATCH v8 09/35] dyndbg: drop NUM_TYPE_ARRAY Jim Cromie
2024-04-29 19:31 ` [PATCH v8 10/35] dyndbg: reduce verbose/debug clutter Jim Cromie
2024-04-29 19:31 ` [PATCH v8 11/35] dyndbg: silence debugs with no-change updates Jim Cromie
2024-04-29 19:31 ` [PATCH v8 12/35] dyndbg: tighten ddebug_class_name() 1st arg type Jim Cromie
2024-04-29 19:31 ` [PATCH v8 13/35] dyndbg: tighten fn-sig of ddebug_apply_class_bitmap Jim Cromie
2024-04-29 19:31 ` [PATCH v8 14/35] dyndbg: reduce verbose=3 messages in ddebug_add_module Jim Cromie
2024-04-29 19:31 ` [PATCH v8 15/35] dyndbg-API: remove DD_CLASS_TYPE_(DISJOINT|LEVEL)_NAMES and code Jim Cromie
2024-04-29 19:31 ` [PATCH v8 16/35] dyndbg-API: fix DECLARE_DYNDBG_CLASSMAP Jim Cromie
2024-04-29 19:31 ` [PATCH v8 17/35] selftests-dyndbg: add tools/testing/selftests/dynamic_debug/* Jim Cromie
2024-04-29 19:31 ` [PATCH v8 18/35] selftests-dyndbg: exit 127 if no facility Jim Cromie
2024-04-29 19:31 ` [PATCH v8 19/35] dyndbg-API: promote DYNDBG_CLASSMAP_PARAM to API Jim Cromie
2024-04-29 19:31 ` [PATCH v8 20/35] dyndbg-doc: add classmap info to howto Jim Cromie
2024-04-29 19:31 ` [PATCH v8 21/35] dyndbg: treat comma as a token separator Jim Cromie
2024-04-29 19:31 ` [PATCH v8 22/35] selftests-dyndbg: add comma_terminator_tests Jim Cromie
2024-05-08 19:32 ` [PATCH v8 00/35] fix CONFIG_DRM_USE_DYNAMIC_DEBUG=y regression jim.cromie
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