linux-hardening - [RFC 3/3] thunderbolt: build kunit tests without structleak plugin

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Date:   Mon, 25 Jan 2021 13:45:28 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Kees Cook <keescook@...omium.org>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Alan Maguire <alan.maguire@...cle.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Vitor Massaru Iha <vitor@...saru.org>,
        linux-hardening@...r.kernel.org, linux-kselftest@...r.kernel.org,
        kunit-dev@...glegroups.com,
        Andreas Noever <andreas.noever@...il.com>,
        linux-usb@...r.kernel.org
Subject: [RFC 3/3] thunderbolt: build kunit tests without structleak plugin

From: Arnd Bergmann <arnd@...db.de>

The structleak plugin causes the stack frame size to grow immensely:

drivers/thunderbolt/test.c:1529:1: error: the frame size of 1176 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

Turn it off in this file.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/thunderbolt/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/thunderbolt/Makefile b/drivers/thunderbolt/Makefile
index 7aa48f6c41d9..e571c0495a84 100644
--- a/drivers/thunderbolt/Makefile
+++ b/drivers/thunderbolt/Makefile
@@ -7,6 +7,7 @@ thunderbolt-objs += nvm.o retimer.o quirks.o
 thunderbolt-${CONFIG_ACPI} += acpi.o
 thunderbolt-$(CONFIG_DEBUG_FS) += debugfs.o
 thunderbolt-${CONFIG_USB4_KUNIT_TEST} += test.o
+CFLAGS_REMOVE_test.o += -fplugin-arg-structleak_plugin-byref -fplugin-arg-structleak_plugin-byref-all
 
 thunderbolt_dma_test-${CONFIG_USB4_DMA_TEST} += dma_test.o
 obj-$(CONFIG_USB4_DMA_TEST) += thunderbolt_dma_test.o
-- 
2.29.2