Return-path: Received: from na3sys009aog121.obsmtp.com ([74.125.149.145]:39336 "HELO na3sys009aog121.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756153Ab2ARIN6 (ORCPT ); Wed, 18 Jan 2012 03:13:58 -0500 From: Luciano Coelho To: mcgrof@frijolero.org Cc: linux-wireless@vger.kernel.org, linux-bluetooth@vger.kernel.org, wlist@ti.com, idor@ti.com, assaf@ti.com, gil.barak@ti.com Subject: [PATCH] compat-wireless: check if modprobe exists before using it Date: Wed, 18 Jan 2012 10:13:41 +0200 Message-Id: <1326874421-4654-1-git-send-email-coelho@ti.com> (sfid-20120118_091405_342790_30D346D7) Sender: linux-wireless-owner@vger.kernel.org List-ID: If you're cross-compiling compat-wireless on a different host, you can't reliably use modprobe. The host system may not even have modprobe, so it doesn't make sense to run modprobe, unless you're installing the modules on the target machine. The modprobe command was being used unconditionally to set the MADWIFI and OLD_IWL variables. This commit adds a check to see whether modprobe exists before trying to use. It also adds a dependency on the modprobe commands to all recipes that rely on it, so we fail more gracefully if modprobe doesn't exist in the system. Reported by: William List Signed-off-by: Luciano Coelho --- Makefile | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index c81d680..e3d9128 100644 --- a/Makefile +++ b/Makefile @@ -8,8 +8,11 @@ endif export KLIB_BUILD ?= $(KLIB)/build # Sometimes not available in the path MODPROBE := /sbin/modprobe + +ifneq ($(wildcard $(MODPROBE)),) MADWIFI=$(shell $(MODPROBE) -l ath_pci) OLD_IWL=$(shell $(MODPROBE) -l iwl4965) +endif DESTDIR?= @@ -95,7 +98,7 @@ $(CREL_CHECK): btinstall: btuninstall bt-install-modules -bt-install-modules: bt +bt-install-modules: bt $(MODPROBE) $(MAKE) -C $(KLIB_BUILD) M=$(PWD) $(KMODDIR_ARG) $(KMODPATH_ARG) BT=TRUE \ modules_install @/sbin/depmod -ae @@ -130,7 +133,7 @@ bt-install-modules: bt @echo And then load the needed bluetooth modules. If unsure reboot. @echo -btuninstall: +btuninstall: $(MODPROBE) @# New location, matches upstream @rm -rf $(KLIB)/$(KMODDIR)/net/bluetooth/ @rm -rf $(KLIB)/$(KMODDIR)/drivers/bluetooth/ @@ -173,7 +176,7 @@ install-modules: modules modules_install @./scripts/update-initramfs -install-scripts: +install-scripts: $(MODPROBE) @# All the scripts we can use @mkdir -p $(DESTDIR)/usr/lib/compat-wireless/ @install scripts/modlib.sh $(DESTDIR)/usr/lib/compat-wireless/ @@ -330,7 +333,7 @@ install-scripts: @echo If unsure reboot. @echo -uninstall: +uninstall: $(MODPROBE) @# New location, matches upstream @rm -rf $(KLIB)/$(KMODDIR)/compat/ @rm -rf $(KLIB)/$(KMODDIR)/net/mac80211/ -- 1.7.4.1