From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6144A394798 for ; Thu, 13 Aug 2026 05:05:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786597594; cv=none; b=iodleSpfHE8jmydvb7JXVEH+A7Law1+NPyByxNNQFy5gxUfkdX5IKifD3xqWpWMvSjjqB9u0d3ioILMmQLjmF5ifNQ/HD2GFRrniLpZV/A3VVDjt4TIxjckuwYJjSAwPi8jzqT4mS7vFj8Cyq42ZVTCW7v93Q6//GbRJMsgFV7A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786597594; c=relaxed/simple; bh=Si0UnlqveNjpwIskkrY3Zbqnk7B2MTEJ3QP53QMNcG4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ZZox0kf21+TVZR0AV5Jw4PNc0JeA1aXPO7T3QAdex0VK8HpRejTj3T+11CBdFlg0+jKBrbquOE64YYefn4n5GQHmsUBVgGCPH70QQQCkkA3AAl6mvFqD3PjvZBio1modfofe2L3y7dLkttAShKrqDVsRWSOYYS2+Slz67WdZu7M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=J23JxRXZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="J23JxRXZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E630D1F000E9; Thu, 13 Aug 2026 05:05:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786597542; bh=Ps6/ci+cq+PKzEV2brTSXS6AyskmWKbrUcBP3yQT10A=; h=From:To:Cc:Subject:Date; b=J23JxRXZGEu5w9jfG4HHv4EFB+whQ2ZqrSMZKHdMP5VfJ7dj+UlUqaCMOCq8rSARq NYsV2l9RkVcNVudHpJwlWwRhOuF9717rBbfVxXNKyK1E2wyNzeHKTvKjMzxzLqt6sK sgKacrly9vMsbO9/9yoEEEcNUrk43CyvaYAIi5IAz99Z9gcw/guXZnRYt0bhYtvXdO I1zNgPlFc5fezW12vOnMoQlkZbU4XzPcTKn7Fo3GAQpPlkILfo48C+Pi7hcBZACwVB 9pZgc1MnaTIAV48/FDG6u3BkZ0R1lc9BxwKmmXQP1eNdssFrh9f7ZOaCgqniHjTjcp IhRSPLmtHSx7g== From: Jisheng Zhang To: Alexandre Belloni , Frank Li Cc: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] i3c: dw: make struct dw_i3c_cmd smaller Date: Thu, 13 Aug 2026 12:46:03 +0800 Message-ID: <20260813044603.22425-1-jszhang@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The dw_i3c_cmd is dynamically allocated, make it smaller. For example on 64bit platforms, we reduce the size from 48 bytes to 32 bytes. Signed-off-by: Jisheng Zhang --- drivers/i3c/master/dw-i3c-master.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c index 6ba84a97765f..d6f84f0f4c2d 100644 --- a/drivers/i3c/master/dw-i3c-master.c +++ b/drivers/i3c/master/dw-i3c-master.c @@ -247,10 +247,10 @@ struct dw_i3c_cmd { u32 cmd_lo; u32 cmd_hi; u16 tx_len; - const void *tx_buf; u16 rx_len; - void *rx_buf; u8 error; + const void *tx_buf; + void *rx_buf; }; struct dw_i3c_xfer { -- 2.51.0