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From Yang Shi <>
Subject [PATCH] crypto: rsa - fix a potential race condition in build
Date Fri, 2 Dec 2016 15:41:04 -0800
When building kernel with RSA enabled with multithreaded, the below
compile failure might be caught:
| /buildarea/kernel-source/crypto/rsa_helper.c:18:28: fatal error: rsapubkey-asn1.h: No such file or directory
| #include "rsapubkey-asn1.h"
| ^
| compilation terminated.
| CC crypto/rsa-pkcs1pad.o
| CC crypto/algboss.o
| CC crypto/testmgr.o
| make[3]: *** [/buildarea/kernel-source/scripts/Makefile.build:289: crypto/rsa_helper.o] Error 1
| make[3]: *** Waiting for unfinished jobs....
| make[2]: *** [/buildarea/kernel-source/Makefile:969: crypto] Error 2
| make[1]: *** [Makefile:150: sub-make] Error 2
| make: *** [Makefile:24: __sub-make] Error 2
The header file is not generated before rsa_helper is compiled, so
adding dependency to avoid such issue.
Signed-off-by: Yang Shi <yang.shi@windriver.com>
---
crypto/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/crypto/Makefile b/crypto/Makefile
index 99cc64a..8db39f9 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_CRYPTO_ECDH) += ecdh_generic.o
$(obj)/rsapubkey-asn1.o: $(obj)/rsapubkey-asn1.c $(obj)/rsapubkey-asn1.h
$(obj)/rsaprivkey-asn1.o: $(obj)/rsaprivkey-asn1.c $(obj)/rsaprivkey-asn1.h
+$(obj)/rsa_helper.o: $(obj)/rsa_helper.c $(obj)/rsaprivkey-asn1.h
clean-files += rsapubkey-asn1.c rsapubkey-asn1.h
clean-files += rsaprivkey-asn1.c rsaprivkey-asn1.h
--
2.0.2
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