Merge tag 'timers-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource

  - Added the DT bindings for the compatible string 'fsl,imx25-epit'
    (Frank Li)

  - Made the rttm_cs variable static for the rtl otto timer driver
    (Krzysztof Kozlowski)

  - Fixed error return code handling in the sun5i timer driver (Chen Ni)

  - Made the timer-of and the mmio code compatible with modules (Daniel
    Lezcano)

Link: https://lore.kernel.org/151feae1-39ba-4abd-a9f9-9bff377a2cd8@oss.qualcomm.com

2 files changed, 18 insertions, 16 deletions

diff --git a/scripts/livepatch/init.c b/scripts/livepatch/init.c
index 2274d8f5a482..f14d8c8fb35f 100644
--- a/scripts/livepatch/init.c
+++ b/scripts/livepatch/init.c
@@ -9,26 +9,26 @@
 #include <linux/slab.h>
 #include <linux/livepatch.h>
 
-extern struct klp_object_ext __start_klp_objects[];
-extern struct klp_object_ext __stop_klp_objects[];
-
 static struct klp_patch *patch;
 
 static int __init livepatch_mod_init(void)
 {
+	struct klp_object_ext *obj_exts;
+	size_t obj_exts_sec_size;
 	struct klp_object *objs;
 	unsigned int nr_objs;
 	int ret;
 
-	nr_objs = __stop_klp_objects - __start_klp_objects;
-
+	obj_exts = klp_find_section_by_name(THIS_MODULE, ".init.klp_objects",
+					    &obj_exts_sec_size);
+	nr_objs = obj_exts_sec_size / sizeof(*obj_exts);
 	if (!nr_objs) {
 		pr_err("nothing to patch!\n");
 		ret = -EINVAL;
 		goto err;
 	}
 
-	patch = kzalloc(sizeof(*patch), GFP_KERNEL);
+	patch = kzalloc_obj(*patch);
 	if (!patch) {
 		ret = -ENOMEM;
 		goto err;
@@ -41,7 +41,7 @@ static int __init livepatch_mod_init(void)
 	}
 
 	for (int i = 0; i < nr_objs; i++) {
-		struct klp_object_ext *obj_ext = __start_klp_objects + i;
+		struct klp_object_ext *obj_ext = obj_exts + i;
 		struct klp_func_ext *funcs_ext = obj_ext->funcs;
 		unsigned int nr_funcs = obj_ext->nr_funcs;
 		struct klp_func *funcs = objs[i].funcs;
@@ -90,12 +90,10 @@ err:
 
 static void __exit livepatch_mod_exit(void)
 {
-	unsigned int nr_objs;
-
-	nr_objs = __stop_klp_objects - __start_klp_objects;
+	struct klp_object *obj;
 
-	for (int i = 0; i < nr_objs; i++)
-		kfree(patch->objs[i].funcs);
+	klp_for_each_object_static(patch, obj)
+		kfree(obj->funcs);
 
 	kfree(patch->objs);
 	kfree(patch);
diff --git a/scripts/livepatch/klp-build b/scripts/livepatch/klp-build
index 882272120c9e..809e198a561d 100755
--- a/scripts/livepatch/klp-build
+++ b/scripts/livepatch/klp-build
@@ -249,6 +249,10 @@ validate_config() {
 	[[ -v CONFIG_GCC_PLUGIN_RANDSTRUCT ]] &&	\
 		die "kernel option 'CONFIG_GCC_PLUGIN_RANDSTRUCT' not supported"
 
+	[[ -v CONFIG_AS_IS_LLVM ]] &&				\
+		[[ "$CONFIG_AS_VERSION" -lt 200000 ]] &&	\
+		die "Clang assembler version < 20 not supported"
+
 	return 0
 }
 
@@ -555,13 +559,11 @@ copy_orig_objects() {
 		local file_dir="$(dirname "$file")"
 		local orig_file="$ORIG_DIR/$rel_file"
 		local orig_dir="$(dirname "$orig_file")"
-		local cmd_file="$file_dir/.$(basename "$file").cmd"
 
 		[[ ! -f "$file" ]] && die "missing $(basename "$file") for $_file"
 
 		mkdir -p "$orig_dir"
 		cp -f "$file" "$orig_dir"
-		[[ -e "$cmd_file" ]] && cp -f "$cmd_file" "$orig_dir"
 	done
 	xtrace_restore
 
@@ -740,15 +742,17 @@ build_patch_module() {
 		local orig_dir="$(dirname "$orig_file")"
 		local kmod_file="$KMOD_DIR/$rel_file"
 		local kmod_dir="$(dirname "$kmod_file")"
-		local cmd_file="$orig_dir/.$(basename "$file").cmd"
+		local cmd_file="$kmod_dir/.$(basename "$file").cmd"
 
 		mkdir -p "$kmod_dir"
 		cp -f "$file" "$kmod_dir"
-		[[ -e "$cmd_file" ]] && cp -f "$cmd_file" "$kmod_dir"
 
 		# Tell kbuild this is a prebuilt object
 		cp -f "$file" "${kmod_file}_shipped"
 
+		# Make modpost happy
+		touch "$cmd_file"
+
 		echo -n " $rel_file" >> "$makefile"
 	done