From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB9352FA622; Tue, 17 Jun 2025 16:57:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750179449; cv=none; b=rbqz4eE2/5pRHkwzvHsryZN/+T2aetYerXsRSRTnpLT2f79Lj6g/j7Go9oi/EWudLjtqll24qTNhUOqAnEZKzyxx3K6oBapgNce9isXszfPXgF/aHRquyRqg/P/CWBNpyVSbXC9i+eqpVnJjlzWf6u84OaFjau2BfL7XquID72g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750179449; c=relaxed/simple; bh=FcnXAvZdekjgyLZ+EG6xP3+L+6YkeXL9mauIHzyfKBA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Y0if8Zqx2YswXw4jiPbLIBhFaIdg580421HCpdrw5hFaNSMyH6MKUWqR/hJvIDJ7kyv9aIjpLKcMrsSQEUDVDYiOQhL2vNxsl8rpZoOID5zkZHrDREMd+d3jhs1c9eMOplapUPlRjKL9F/Ri7RKfNyKNOsNTsnlOY+Q7RWM6gB4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=DDtQlUOX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="DDtQlUOX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A947C4CEE3; Tue, 17 Jun 2025 16:57:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750179448; bh=FcnXAvZdekjgyLZ+EG6xP3+L+6YkeXL9mauIHzyfKBA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DDtQlUOXAeyPJy/TpNsZkmGmJlayveYgzQ5LYQA9DXNOvPxR0+Q3t3AV34eyUpocE 43THLw2RtNwJdGlMdY2oPGtH99VkyhqE8ZzrXzGEf4PhihtzM29jHtkqtTHnOTOpyC ACKaFnRlgUUAtXwKXA7tbDb21s8HTCvpH/uWQRDA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Madhavan Srinivasan Subject: [PATCH 6.15 750/780] powerpc/kernel: Fix ppc_save_regs inclusion in build Date: Tue, 17 Jun 2025 17:27:38 +0200 Message-ID: <20250617152522.046087495@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250617152451.485330293@linuxfoundation.org> References: <20250617152451.485330293@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Madhavan Srinivasan commit 93bd4a80efeb521314485a06d8c21157240497bb upstream. Recent patch fixed an old commit 'fc2a5a6161a2 ("powerpc/64s: ppc_save_regs is now needed for all 64s builds")' which is to include building of ppc_save_reg.c only when XMON and KEXEC_CORE and PPC_BOOK3S are enabled. This was valid, since ppc_save_regs was called only in replay_system_reset() of old irq.c which was under BOOK3S. But there has been multiple refactoring of irq.c and have added call to ppc_save_regs() from __replay_soft_interrupts -> replay_soft_interrupts which is part of irq_64.c included under CONFIG_PPC64. And since ppc_save_regs is called in CRASH_DUMP path as part of crash_setup_regs in kexec.h, CONFIG_PPC32 also needs it. So with this recent patch which enabled the building of ppc_save_regs.c caused a build break when none of these (XMON, KEXEC_CORE, BOOK3S) where enabled as part of config. Patch to enable building of ppc_save_regs.c by defaults. Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20250511041111.841158-1-maddy@linux.ibm.com Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/kernel/Makefile | 2 -- 1 file changed, 2 deletions(-) --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -160,9 +160,7 @@ endif obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o -ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)$(CONFIG_PPC_BOOK3S),) obj-y += ppc_save_regs.o -endif obj-$(CONFIG_EPAPR_PARAVIRT) += epapr_paravirt.o epapr_hcalls.o obj-$(CONFIG_KVM_GUEST) += kvm.o kvm_emul.o