linux-kernel - [tip:efi/core] efi/libstub/arm: Omit unneeded stripping of ksymtab/kcrctab sections

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Date:   Thu, 28 Mar 2019 23:46:24 -0700
From:   tip-bot for Ard Biesheuvel <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     mingo@...nel.org, ard.biesheuvel@...aro.org,
        matt@...eblueprint.co.uk, torvalds@...ux-foundation.org,
        peterz@...radead.org, tglx@...utronix.de,
        linux-kernel@...r.kernel.org, hpa@...or.com,
        ndesaulniers@...gle.com
Subject: [tip:efi/core] efi/libstub/arm: Omit unneeded stripping of
 ksymtab/kcrctab sections

Commit-ID:  02562d0ca1084a688ac5c92e0e92947f62f13093
Gitweb:     https://git.kernel.org/tip/02562d0ca1084a688ac5c92e0e92947f62f13093
Author:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
AuthorDate: Thu, 28 Mar 2019 20:34:29 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 29 Mar 2019 07:35:00 +0100

efi/libstub/arm: Omit unneeded stripping of ksymtab/kcrctab sections

Commit f922c4abdf764 ("module: allow symbol exports to be disabled")
introduced a way to inhibit generation of kcrctab/ksymtab sections
when building ordinary kernel code to be used in a different execution
context (decompressor, EFI stub, etc)

That means we no longer have to strip those sections explicitly when
building the EFI libstub objects, so drop this from the Makefile.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Matt Fleming <matt@...eblueprint.co.uk>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-efi@...r.kernel.org
Link: http://lkml.kernel.org/r/20190328193429.21373-6-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 drivers/firmware/efi/libstub/Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index ae9081988c88..b1f7b64652db 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -71,7 +71,6 @@ CFLAGS_arm64-stub.o		:= -DTEXT_OFFSET=$(TEXT_OFFSET)
 extra-$(CONFIG_EFI_ARMSTUB)	:= $(lib-y)
 lib-$(CONFIG_EFI_ARMSTUB)	:= $(patsubst %.o,%.stub.o,$(lib-y))
 
-STUBCOPY_RM-y			:= -R *ksymtab* -R *kcrctab*
 STUBCOPY_FLAGS-$(CONFIG_ARM64)	+= --prefix-alloc-sections=.init \
 				   --prefix-symbols=__efistub_
 STUBCOPY_RELOC-$(CONFIG_ARM64)	:= R_AARCH64_ABS
@@ -87,7 +86,7 @@ $(obj)/%.stub.o: $(obj)/%.o FORCE
 #
 quiet_cmd_stubcopy = STUBCPY $@
       cmd_stubcopy =							\
-	$(STRIP) --strip-debug $(STUBCOPY_RM-y) -o $@ $<;		\
+	$(STRIP) --strip-debug -o $@ $<;				\
 	if $(OBJDUMP) -r $@ | grep $(STUBCOPY_RELOC-y); then		\
 		echo "$@: absolute symbol references not allowed in the EFI stub" >&2; \
 		/bin/false;						\