From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.mainlining.org (mail.mainlining.org [5.75.144.95]) (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 C52304BCADC for ; Wed, 7 Oct 2026 17:59:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=5.75.144.95 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791396002; cv=none; b=fnIgecaMb7QyuQMmDTex9qzrbsUGQiUlQMtpJUiQZ6bFXyyFy+vTw6bvfdXy0NVr6Z/epy72+DIrNo36f38AakLvb55dmalpwUeHEN62EjyViWXEbPHQPDAd+luZeud/vBTfFr648+I9dAci8Mb5etczPHiixresw7CZQ4B1Enc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791396002; c=relaxed/simple; bh=JgyVm6yEpNf/2dQ/k32vsyW3ebTaboiZjy+TYXe0G50=; h=From:To:Cc:Message-ID:Date:Subject; b=rgMRbhddCiE0Bito7TpVZ33E3sSGibBIDLxvWDZSz/kEnWXagw8mKrAY1k99dn6N+rCf2GotbKiGS4iOnsJjT8djEiZkPIShCBLbnWYFf5bFB7HbzTVri9x6mzDK2qQGurgc/mDdVd6/6Bc/XJTEhTW2qFSBKSGab9WQEYQIkbg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mainlining.org; spf=pass smtp.mailfrom=mainlining.org; dkim=pass (2048-bit key) header.d=mainlining.org header.i=@mainlining.org header.b=T3Fcw7NJ; dkim=permerror (0-bit key) header.d=mainlining.org header.i=@mainlining.org header.b=L0xrpi/0; arc=none smtp.client-ip=5.75.144.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mainlining.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mainlining.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mainlining.org header.i=@mainlining.org header.b="T3Fcw7NJ"; dkim=permerror (0-bit key) header.d=mainlining.org header.i=@mainlining.org header.b="L0xrpi/0" DKIM-Signature: v=1; a=rsa-sha256; s=202507r; d=mainlining.org; c=relaxed/relaxed; h=Subject:Date:Message-ID:To:From; t=1791395994; bh=3jAENaBzyuwOwECaqvThTmn S/3VZ/IJOgHT6IsIY+E8=; b=T3Fcw7NJwKaAZr787tBc9HeDvTzo1v0pMd5h+UousMWy14qCfy VZo6ujBjwmur+lziGekbHEHcbjWPh23Z2KaPggEpAVHDLvfkrEJnKm0KsSuGubGTxwhKPDFeI/g /IP+sr5j3rJVeU6JNHWJZ3r6Bcl945szgNxUZeJ2K/GabiVakmlCahoc0BrwJQfoyBflU9yJMHN +bus2qPDioAFEmuHRTzRLPxE02KGmZwltg5k7h5bGRrLM48ugy3C9JebfMyofH3CYw/1+Nzv1Y6 U0QOyYXtXkFqqWQBbHEXZz4cwVWHhzpwSE5UcYzmf70Hof1BuUTPCT/GwmSLS894Xbg==; DKIM-Signature: v=1; a=ed25519-sha256; s=202507e; d=mainlining.org; c=relaxed/relaxed; h=Subject:Date:Message-ID:To:From; t=1791395994; bh=3jAENaBzyuwOwECaqvThTmn S/3VZ/IJOgHT6IsIY+E8=; b=L0xrpi/0DxjUzLAoyfzqiuuqpBNzka2EZ/JYBGyxu9bD+jFvH8 YnTMPianKzaRk1fY6q2MlrnNHkYjRT4LzFCQ==; From: Bradley Morgan To: catalin.marinas@arm.com, will@kernel.org Cc: mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, brads@mainlining.org Message-ID: <20261007185512.2.mte-tmp2@mainlining.org> Date: Wed, 7 Oct 2026 17:45:01 +0000 Subject: [PATCH RESEND] arm64: entry: drop the unused tmp2 argument of mte_set_kernel_gcr() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: mte_set_kernel_gcr() takes a tmp2 argument the macro never uses. It used to, the body passed \tmp and \tmp2 to mte_set_gcr, then commit 82868247897b ("arm64: kasan: mte: use a constant kernel GCR_EL1 value") swapped that for mov \tmp, KERNEL_GCR_EL1 and tmp2 stayed in the declaration and in the one caller, which passes x23 for it. Drop it, both places. Signed-off-by: Bradley Morgan --- Resending, the first send's body got mangled. arch/arm64/kernel/entry.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index f63049ac32dc..c3106dee61e1 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -171,7 +171,7 @@ alternative_else_nop_endif #endif .endm - .macro mte_set_kernel_gcr, tmp, tmp2 + .macro mte_set_kernel_gcr, tmp #ifdef CONFIG_KASAN_HW_TAGS alternative_cb ARM64_ALWAYS_SYSTEM, kasan_hw_tags_enable b 1f @@ -258,7 +258,7 @@ alternative_else_nop_endif apply_ssbd 1, x22, x23 - mte_set_kernel_gcr x22, x23 + mte_set_kernel_gcr x22 /* * Any non-self-synchronizing system register updates required for -- 2.53.0