Remove redundant kernel module build commands.

They were rebuilding every time.

Fix run find for no patches

kernel_module/Makefile

@@ -1,13 +1,10 @@
 obj-m += $(addsuffix .o, $(notdir $(basename $(wildcard $(BR2_EXTERNAL_KERNEL_MODULE_PATH)/*.c))))
 ccflags-y := -DDEBUG -g -std=gnu99 -Wno-declaration-after-statement
 
-.PHONY: all clean test
+.PHONY: all clean
 
-all: test
+all:
 	$(MAKE) -C '$(LINUX_DIR)' M='$(PWD)' modules
 
 clean:
 	$(MAKE) -C '$(LINUX_DIR)' M='$(PWD)' clean
-
-test:
-	$(MAKE) -C '$(PWD)/test'

kernel_module/external.mk

@@ -9,18 +9,10 @@ KERNEL_MODULE_SITE = $(BR2_EXTERNAL_KERNEL_MODULE_PATH)
 KERNEL_MODULE_SITE_METHOD = local
 
 define KERNEL_MODULE_BUILD_CMDS
-	$(MAKE) \
-	  -C '$(@D)' \
-	  ARCH='$(KERNEL_ARCH)' \
-	  CC='$(TARGET_CC)' \
-	  CROSS_COMPILE='$(TARGET_CROSS)' \
-	  LD='$(TARGET_LD)' \
-	  LINUX_DIR='$(LINUX_DIR)' \
-	  PWD='$(@D)'
+	$(MAKE) -C '$(@D)/test' CC="$(TARGET_CC)" LD="$(TARGET_LD)"
 endef
 
 define KERNEL_MODULE_INSTALL_TARGET_CMDS
-	$(INSTALL) -D -m 0655 $(@D)/*.ko '$(TARGET_DIR)'
 	$(INSTALL) -D -m 0755 $(@D)/test/*.out '$(TARGET_DIR)'
 endef
 

run

@@ -19,7 +19,7 @@ case "$arch" in
     defconfig=qemu_arm_versatile_defconfig
     ;;
 esac
-for p in "$(find '../buildroot_patches/' -maxdepth 1 -name '*.patch' -print)"; do
+for p in $(find '../buildroot_patches/' -maxdepth 1 -name '*.patch' -print); do
     patch -N -r - -p 1 <"$p" || :
 done
 make BR2_EXTERNAL="$(pwd)/../kernel_module" "$defconfig"