Thread (63 messages) 63 messages, 11 authors, 2017-11-09

[PATCH 14/15] arm64: crypto: disable LTO for aes-ce-cipher.c

From: Ard Biesheuvel <hidden>
Date: 2017-11-03 20:10:53
Also in: lkml

On 3 November 2017 at 17:12, Sami Tolvanen [off-list ref] wrote:
CONFIG_CLANG_LTO requires the use of clang's integrated assembler, which
doesn't understand the inline assembly in aes-ce-cipher.c. Disable LTO for
the file to work around the issue.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Ard Biesheuvel <redacted>
quoted hunk ↗ jump to hunk
---
 arch/arm64/crypto/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/crypto/Makefile b/arch/arm64/crypto/Makefile
index b5edc5918c28..0edaef43a1d4 100644
--- a/arch/arm64/crypto/Makefile
+++ b/arch/arm64/crypto/Makefile
@@ -24,7 +24,7 @@ obj-$(CONFIG_CRYPTO_CRC32_ARM64_CE) += crc32-ce.o
 crc32-ce-y:= crc32-ce-core.o crc32-ce-glue.o

 obj-$(CONFIG_CRYPTO_AES_ARM64_CE) += aes-ce-cipher.o
-CFLAGS_aes-ce-cipher.o += -march=armv8-a+crypto
+CFLAGS_aes-ce-cipher.o += -march=armv8-a+crypto $(DISABLE_LTO)

 obj-$(CONFIG_CRYPTO_AES_ARM64_CE_CCM) += aes-ce-ccm.o
 aes-ce-ccm-y := aes-ce-ccm-glue.o aes-ce-ccm-core.o
--
2.15.0.403.gc27cc4dac6-goog


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