From patchwork Sun Nov 26 17:04:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Helge Deller X-Patchwork-Id: 13468895 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 01A8DD26E for ; Sun, 26 Nov 2023 17:04:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23DD0C433C8; Sun, 26 Nov 2023 17:04:43 +0000 (UTC) Date: Sun, 26 Nov 2023 18:04:41 +0100 From: Helge Deller To: Linus Torvalds , linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, James Bottomley , John David Anglin Subject: [GIT PULL] parisc architecture fixes for v6.7-rc3 Message-ID: Precedence: bulk X-Mailing-List: linux-parisc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Hi Linus, this patchset fixes and enforces correct section alignments for the ex_table, altinstructions, parisc_unwind, jump_table and bug_table which are created by inline assembly. Due to not being correctly aligned at link & load time they can trigger unnecessarily the kernel unaligned exception handler at runtime. While at it, I switched the bug table to use relative addresses which reduces the size of the table by half on 64-bit. We still had the ENOSYM and EREMOTERELEASE errno symbols as left-overs from HP-UX, which now trigger build-issues with glibc. We can simply remove them. Most of the patches are tagged for stable kernel series. Please pull. Thanks! Helge ---------------------------------------------------------------- The following changes since commit 98b1cc82c4affc16f5598d4fa14b1858671b2263: Linux 6.7-rc2 (2023-11-19 15:02:14 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git tags/parisc-for-6.7-rc3 for you to fetch changes up to 43266838515d30dc0c45d5c7e6e7edacee6cce92: parisc: Reduce size of the bug_table on 64-bit kernel by half (2023-11-25 09:43:18 +0100) ---------------------------------------------------------------- parisc architecture fixes for kernel v6.7-rc3: - Drop HP-UX ENOSYM and EREMOTERELEASE return codes to avoid glibc build issues - Fix section alignments for ex_table, altinstructions, parisc unwind table, jump_table and bug_table - Reduce size of bug_table on 64-bit kernel by using relative pointers ---------------------------------------------------------------- Helge Deller (9): parisc: Mark ex_table entries 32-bit aligned in assembly.h parisc: Mark ex_table entries 32-bit aligned in uaccess.h parisc: Mark altinstructions read-only and 32-bit aligned parisc: Mark jump_table naturally aligned parisc: Mark lock_aligned variables 16-byte aligned on SMP parisc: Ensure 32-bit alignment on parisc unwind section parisc: Use natural CPU alignment for bug_table parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes parisc: Reduce size of the bug_table on 64-bit kernel by half arch/parisc/Kconfig | 7 ++++-- arch/parisc/include/asm/alternative.h | 9 ++++--- arch/parisc/include/asm/assembly.h | 1 + arch/parisc/include/asm/bug.h | 38 +++++++++++++++++------------- arch/parisc/include/asm/jump_label.h | 8 +++++-- arch/parisc/include/asm/ldcw.h | 2 +- arch/parisc/include/asm/uaccess.h | 1 + arch/parisc/include/uapi/asm/errno.h | 2 -- arch/parisc/kernel/vmlinux.lds.S | 1 + lib/errname.c | 6 ----- tools/arch/parisc/include/uapi/asm/errno.h | 2 -- 11 files changed, 43 insertions(+), 34 deletions(-)