From patchwork Fri Dec 1 06:03:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baoquan He X-Patchwork-Id: 13475426 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="LZ1HVA6B" Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE946193 for ; Thu, 30 Nov 2023 22:03:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1701410619; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=/TeMDmB7LckIZA4USFVQUlo1F06QQ0tuHG6egKrLc10=; b=LZ1HVA6BdaA6ue3vqphNJHwdfO7nvYEJQ1n9ybdwo+IuVbQJJ8cAo28cKTwZ9OkzWHF/MS l+zs9gkZnDUXCZ8z3nWTUVCKrUQsokO5A1dL9MMhQ/Bsxgbu4tpjqOivEDUpcJSjzsJRZ+ KUH29A2TBflSICXMRXOMbniCjghzywM= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-586-d749Q2UvPqiCzf1p7FVvXQ-1; Fri, 01 Dec 2023 01:03:34 -0500 X-MC-Unique: d749Q2UvPqiCzf1p7FVvXQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7DA7D85A58A; Fri, 1 Dec 2023 06:03:33 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (unknown [10.72.113.121]) by smtp.corp.redhat.com (Postfix) with ESMTP id ED9E31121307; Fri, 1 Dec 2023 06:03:29 +0000 (UTC) From: Baoquan He To: linux-kernel@vger.kernel.org Cc: loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-sh@vger.kernel.org, akpm@linux-foundation.org, eric_devolder@yahoo.com, lkp@intel.com, Baoquan He Subject: [PATCH v2] kexec_core: change dependency of object files Date: Fri, 1 Dec 2023 14:03:25 +0800 Message-ID: <20231201060325.26940-1-bhe@redhat.com> Precedence: bulk X-Mailing-List: linux-sh@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.3 When dropping the select of KEXEC for CRASH_DUMP, compiling error will be triggered if below config items are set on some architectures. === CONFIG_CRASH_CORE=y CONFIG_KEXEC_CORE=y CONFIG_CRASH_DUMP=y === E.g the building error on loongarch: --------------------------------------------------------------- loongarch64-linux-ld: kernel/kexec_core.o: in function `.L209': >> kexec_core.c:(.text+0x1660): undefined reference to `machine_kexec_cleanup' loongarch64-linux-ld: kernel/kexec_core.o: in function `.L287': >> kexec_core.c:(.text+0x1c5c): undefined reference to `machine_crash_shutdown' >> loongarch64-linux-ld: kexec_core.c:(.text+0x1c64): undefined reference to `machine_kexec' loongarch64-linux-ld: kernel/kexec_core.o: in function `.L2^B5': >> kexec_core.c:(.text+0x2090): undefined reference to `machine_shutdown' loongarch64-linux-ld: kexec_core.c:(.text+0x20a0): undefined reference to `machine_kexec' --------------------------------------------------------------- The reason is that currently in arch/loongarch/kernel/Makefile, building machine_kexec.o relocate_kernel.o depends on CONFIG_KEXEC. So the building of the two object files is skipped because CONFIG_KEXEC=n in that case. And this situation exists in m68k, mips and sh ARCH too. Here, changing the dependency of machine_kexec.o relocate_kernel.o to CONFIG_KEXEC_CORE for all relevant architectures. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202311300946.kHE9Iu71-lkp@intel.com/ Signed-off-by: Baoquan He --- v1->v2: - V1 only includes fix on loongarch. Add m68k, mips, sh fix in v2 too. arch/loongarch/kernel/Makefile | 2 +- arch/m68k/kernel/Makefile | 2 +- arch/mips/kernel/Makefile | 2 +- arch/sh/kernel/Makefile | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/loongarch/kernel/Makefile b/arch/loongarch/kernel/Makefile index 4fcc168f0732..3c808c680370 100644 --- a/arch/loongarch/kernel/Makefile +++ b/arch/loongarch/kernel/Makefile @@ -57,7 +57,7 @@ obj-$(CONFIG_MAGIC_SYSRQ) += sysrq.o obj-$(CONFIG_RELOCATABLE) += relocate.o -obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index 01fb69a5095f..f335bf3268a1 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -25,7 +25,7 @@ obj-$(CONFIG_PCI) += pcibios.o obj-$(CONFIG_M68K_NONCOHERENT_DMA) += dma.o -obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_BOOTINFO_PROC) += bootinfo_proc.o obj-$(CONFIG_UBOOT) += uboot.o diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index 853a43ee4b44..ecf3278a32f7 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -90,7 +90,7 @@ obj-$(CONFIG_GPIO_TXX9) += gpio_txx9.o obj-$(CONFIG_RELOCATABLE) += relocate.o -obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o +obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o crash.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_EARLY_PRINTK_8250) += early_printk_8250.o diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index 69cd9ac4b2ab..2d7e70537de0 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -33,7 +33,7 @@ obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o obj-$(CONFIG_KGDB) += kgdb.o obj-$(CONFIG_MODULES) += sh_ksyms_32.o module.o -obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_IO_TRAPPED) += io_trapped.o