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 --- 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