gcc-plugins: disable GCC_PLUGIN_STRUCTLEAK_BYREF_ALL for COMPILE_TEST

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 <sfr@canb.auug.org.au>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/arch/Kconfig b/arch/Kconfig
index c2695293ca5b0c9388c5f89e00f988f32dc80c34..f62542e6dc55c6a6e727fd5836fa703b458a0102 100644 (file)
--- 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.