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Message-ID: <Ys/aDKZNhhsENH9S@debian> Date: Thu, 14 Jul 2022 09:55:40 +0100 From: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com> To: Michael Ellerman <mpe@...erman.id.au>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org>, Kees Cook <keescook@...omium.org> Cc: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org> Subject: mainline build failure of powerpc allmodconfig for prom_init_check Hi All, Not sure if it has been reported before but the latest mainline kernel branch fails to build for powerpc allmodconfig with gcc-12 and the error is: Error: External symbol 'memset' referenced from prom_init.c make[2]: *** [arch/powerpc/kernel/Makefile:204: arch/powerpc/kernel/prom_init_check] Error 1 The commit ca5dabcff1df ("powerpc/prom_init: Fix build failure with GCC_PLUGIN_STRUCTLEAK_BYREF_ALL and KASAN") looks similar but the error is still there with gcc-12. Note: I don't see this error with gcc-11. I will be happy to test any patch or provide any extra log if needed. -- Regards Sudip
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