From caa91ba53eb1c92d00abdf5b6c67a310d2b4c2d9 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 1 Jun 2018 13:32:00 +0900 Subject: gcc-plugins: disable GCC_PLUGIN_STRUCTLEAK_BYREF_ALL for COMPILE_TEST MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We have enabled GCC_PLUGINS for COMPILE_TEST, but allmodconfig now produces new warnings. CC [M] drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.o drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_workarounds_nphy_rev7’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:16563:1: warning: the frame size of 3128 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_workarounds_nphy_rev3’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:16905:1: warning: the frame size of 2800 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function ‘wlc_phy_cal_txiqlo_nphy’: drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c:26033:1: warning: the frame size of 2488 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ It looks like GCC_PLUGIN_STRUCTLEAK_BYREF_ALL is causing this. Add "depends on !COMPILE_TEST" to not dirturb the compile test. Reported-by: Stephen Rothwell Suggested-by: Kees Cook Signed-off-by: Masahiro Yamada --- arch/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/Kconfig b/arch/Kconfig index c2695293ca5b..f62542e6dc55 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -486,6 +486,7 @@ config GCC_PLUGIN_STRUCTLEAK config GCC_PLUGIN_STRUCTLEAK_BYREF_ALL bool "Force initialize all struct type variables passed by reference" depends on GCC_PLUGIN_STRUCTLEAK + depends on !COMPILE_TEST help Zero initialize any struct type local variable that may be passed by reference without having been initialized. -- cgit v1.2.3-59-g8ed1b