[PATCH v6 01/41] arm64: kernel: Disable latent_entropy GCC plugin in early C runtime

[Ard Biesheuvel]

From: Ard Biesheuvel <ardb at kernel.org>

In subsequent patches, mark portions of the early C code will be marked
as __init.  Unfortunarely, __init implies __latent_entropy, and this
would result in the early C code being instrumented in an unsafe manner.

Disable the latent entropy plugin for the early C code.

Acked-by: Mark Rutland <mark.rutland at arm.com>
Signed-off-by: Ard Biesheuvel <ardb at kernel.org>
---
 arch/arm64/kernel/pi/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/pi/Makefile b/arch/arm64/kernel/pi/Makefile
index 4c0ea3cd4ea4..c844a0546d7f 100644
--- a/arch/arm64/kernel/pi/Makefile
+++ b/arch/arm64/kernel/pi/Makefile
@@ -3,6 +3,7 @@
 
 KBUILD_CFLAGS	:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) -fpie \
 		   -Os -DDISABLE_BRANCH_PROFILING $(DISABLE_STACKLEAK_PLUGIN) \
+		   $(DISABLE_LATENT_ENTROPY_PLUGIN) \
 		   $(call cc-option,-mbranch-protection=none) \
 		   -I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \
 		   -include $(srctree)/include/linux/hidden.h \
-- 
2.43.0.rc1.413.gea7ed67945-goog