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 6B313254AF0; Mon, 23 Jun 2025 13:23:16 +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=1750684996; cv=none; b=mRm3aRP5MfV+lxz3RHtdUEIsr+uz3PbWPT4Wr0ph//8yy8bS0X0rLs0x3icwWyqxgxS3SmM2UqE9xAvpwWtv9PMHgC9WMh4n5rg61zT12P/jHaFnMaDyC6afMBtcaXe5oE+LsK/OQJ7G1NXeFWo0PsYPDHWiZYaWsT/FIAI9vFI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750684996; c=relaxed/simple; bh=kfY55+D22fQv2HYzrlhfk1AU6w+fN3OXhOS06xFVzT8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=o5f8oMsLmwRflJR2mZNTU/l/tNKEj3TLAQ4U/q1ksiQAUSMwBlhUfi1y4xQozWlFb2xF6rxOdwjyrpR1pBV3HV4wxaxqqgWHnEJQojAZhrcO6FyxmGA99VFK/qVbxUAfeY1F0q48DM55Yva4BnXMKvQ2Lg8oVzz6tArmJ5ICHR0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Cs6gH9Y1; 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="Cs6gH9Y1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98D3AC4CEF2; Mon, 23 Jun 2025 13:23:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750684995; bh=kfY55+D22fQv2HYzrlhfk1AU6w+fN3OXhOS06xFVzT8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Cs6gH9Y1ceQ3cSGxIJXpv+Bjc6RxPtRzN8IwuUiswbzvpuLW/iT7/pZoajRBBWdzi p39M5DzCUKW5q5E4yGFEfwh7ioYiDBee1CD1yOBmnFJJNLKjqe30aPSm5lzTF5n0pO Vua8HgIXa9wPSYSZ0pLUiCiFuvrPjqNoNBnVtrjI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alexander Shiyan , Alexandre Belloni , Sebastian Reichel , Sasha Levin Subject: [PATCH 5.10 020/355] power: reset: at91-reset: Optimize at91_reset() Date: Mon, 23 Jun 2025 15:03:41 +0200 Message-ID: <20250623130627.405807811@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130626.716971725@linuxfoundation.org> References: <20250623130626.716971725@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 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alexander Shiyan [ Upstream commit 62d48983f215bf1dd48665913318101fa3414dcf ] This patch adds a small optimization to the low-level at91_reset() function, which includes: - Removes the extra branch, since the following store operations already have proper condition checks. - Removes the definition of the clobber register r4, since it is no longer used in the code. Fixes: fcd0532fac2a ("power: reset: at91-reset: make at91sam9g45_restart() generic") Signed-off-by: Alexander Shiyan Reviewed-by: Alexandre Belloni Link: https://lore.kernel.org/r/20250307053809.20245-1-eagle.alexander923@gmail.com Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/reset/at91-reset.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index 3ff9d93a52267..6659001291f41 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -81,12 +81,11 @@ static int at91_reset(struct notifier_block *this, unsigned long mode, " str %4, [%0, %6]\n\t" /* Disable SDRAM1 accesses */ "1: tst %1, #0\n\t" - " beq 2f\n\t" " strne %3, [%1, #" __stringify(AT91_DDRSDRC_RTR) "]\n\t" /* Power down SDRAM1 */ " strne %4, [%1, %6]\n\t" /* Reset CPU */ - "2: str %5, [%2, #" __stringify(AT91_RSTC_CR) "]\n\t" + " str %5, [%2, #" __stringify(AT91_RSTC_CR) "]\n\t" " b .\n\t" : @@ -97,7 +96,7 @@ static int at91_reset(struct notifier_block *this, unsigned long mode, "r" cpu_to_le32(AT91_DDRSDRC_LPCB_POWER_DOWN), "r" (reset->args), "r" (reset->ramc_lpr) - : "r4"); + ); return NOTIFY_DONE; } -- 2.39.5