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 028BF35979 for ; Sat, 17 May 2025 13:08:24 +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=1747487305; cv=none; b=QpChvqVZweSKD74PIVX3rtGUE1lfGzRMUEW8cCbaMXMHjqQuA3tSGLsWmrvU2QrzcRWc5O4MaZnRpp8TNleBGgSxFVCzG0eJnpr6OaOwrOpKC4tnEbjG44WRPc6mk9nP0Pwn2UHt8RhNSGTLinW+ZRAzBGvJQM1zgFRtl9MBBcw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747487305; c=relaxed/simple; bh=MAqILwmzxGtp4hBkJnJBdJJ3RN2+kGwXOnJIdp0zhz4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=H4lQOz7MVkKBBfgJMTdDAngRd+TkuWk21bZ83NjnV1t4cbBhkxsmasQmORhT9y/zsVc8FELN0RVZDN9M1oD3wcR3+7A3lrAIIZUJMOg9d+MxeGQ7rq7zmEuXoswqK1FNZYwVt1eC/ue+jN9PbqZRWGcL/TrHVur3bWvV/c7aMmQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PUvI/8kw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="PUvI/8kw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0ABC4C4CEE3; Sat, 17 May 2025 13:08:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747487304; bh=MAqILwmzxGtp4hBkJnJBdJJ3RN2+kGwXOnJIdp0zhz4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PUvI/8kwdKVMZFvZsQJm9U5se64nEO4KvPVBIiUbsCEFROyLPFPym8fJ/IVj+pNq+ w9E7e2pAKQVUqSPf74pIJFGHjYsxyenQHJq0disXkcZ8HW4CKyZT8FeeeJchJfb38I tz3Mf+5vHsUcsiKVgzKY5Ay0RAi5C3zKQX3B6OAXwbJ+0ET+5Ag5zKKQHQAZ1TwyYc NkHxKB+cXkH4LLHmp8CXxv8TLFVT75a4Il8EeMbpSlk30r0JEh51x+MQ0LFQ2wMo9C CRqvxCQC7CwUW5WJJbjJHZGRNRIJKjELxD27l3rPAmY4ysTe6bkzm3+IdnlRItfJm5 PikDVJuuk416g== From: Sasha Levin To: stable@vger.kernel.org Cc: Pawan Gupta , Sasha Levin Subject: Re: [PATCH 5.15 v3 01/16] x86,nospec: Simplify {JMP,CALL}_NOSPEC Date: Sat, 17 May 2025 09:08:22 -0400 Message-Id: <20250516212024-7cb18dbd2ddae55f@stable.kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250516-its-5-15-v3-1-16fcdaaea544@linux.intel.com> References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Sasha's backport helper bot ] Hi, ✅ All tests passed successfully. No issues detected. No action required from the submitter. The upstream commit SHA1 provided is correct: 09d09531a51a24635bc3331f56d92ee7092f5516 WARNING: Author mismatch between patch and upstream commit: Backport author: Pawan Gupta Commit author: Peter Zijlstra Status in newer kernel trees: 6.14.y | Present (exact SHA1) 6.12.y | Present (exact SHA1) 6.6.y | Present (exact SHA1) 6.1.y | Present (exact SHA1) Note: The patch differs from the upstream commit: --- 1: 09d09531a51a2 ! 1: c6ae69642e75d x86,nospec: Simplify {JMP,CALL}_NOSPEC @@ Metadata ## Commit message ## x86,nospec: Simplify {JMP,CALL}_NOSPEC + commit 09d09531a51a24635bc3331f56d92ee7092f5516 upstream. + Have {JMP,CALL}_NOSPEC generate the same code GCC does for indirect calls and rely on the objtool retpoline patching infrastructure. @@ Commit message compiler generated retpolines are not. Signed-off-by: Peter Zijlstra (Intel) + Signed-off-by: Pawan Gupta ## arch/x86/include/asm/nospec-branch.h ## @@ --- Results of testing on various branches: | Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-5.15.y | Success | Success |