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 7D34431B83D; Mon, 27 Oct 2025 19:07:24 +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=1761592044; cv=none; b=axBC8dD/pjNzUx4UhxU2Jmfs80/3QFMFMn7O2VMyyBXDLmLTsBkHTlSwDicp/Fm+kqHgQBViLHc7dFb0+WthAXJnEHClOuWgqDtGGRe/A8xu6GY6/Vk6UkbGIxnyrYhNxgYOgOpnKmqqsG8F6Jq+hDPA5cUdIEHHMTDW35eCAMU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761592044; c=relaxed/simple; bh=hQScORWQNz4mGTpEnS5/mlCCQXr7KMWh4hSdxRGAFZo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Nxw3SHVRK49sKBZ7FpjvIHMgGcMyG6OdhcPzFpdX8DLxnHWtM9DaI2cIopnDfwdOn+4tiV7JB8rZ4i0b5/XGsU1QS0M2L5xcwhAQ7kuE75sTHIA+CFxGu2zxp3ebcGZ1bbtjXJDqOdZqwH0dy7BSeD1Q8CvwdW8Tla/5NBexaps= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=CZcBp9kx; 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="CZcBp9kx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11E45C4CEF1; Mon, 27 Oct 2025 19:07:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761592044; bh=hQScORWQNz4mGTpEnS5/mlCCQXr7KMWh4hSdxRGAFZo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CZcBp9kxno/Y/dwxeXOn4acX0tiRVgT9WHOVYPQxtWxsGmpR8fV4FswYQWwIQDlWX XmLd+KDlc87cM/r9JwLmNUSNEsECAj7k/QgbGTwQtVeQQ3ddnIWmDPZ7my79bUHGqV B4bQo7SbfeJFJKcCajfgIV1nVo7rPyGFqZXHgpsg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Lechner , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , Jonathan Cameron , Sasha Levin Subject: [PATCH 5.15 095/123] iio: imu: inv_icm42600: use = { } instead of memset() Date: Mon, 27 Oct 2025 19:36:15 +0100 Message-ID: <20251027183448.930300746@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183446.381986645@linuxfoundation.org> References: <20251027183446.381986645@linuxfoundation.org> User-Agent: quilt/0.69 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Lechner [ Upstream commit 352112e2d9aab6a156c2803ae14eb89a9fd93b7d ] Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner Reviewed-by: Nuno Sá Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-16-ebb2d0a24302@baylibre.com Signed-off-by: Jonathan Cameron Stable-dep-of: 466f7a2fef2a ("iio: imu: inv_icm42600: Avoid configuring if already pm_runtime suspended") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 5 ++--- drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 5 ++--- 2 files changed, 4 insertions(+), 6 deletions(-) --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c @@ -749,7 +749,8 @@ int inv_icm42600_accel_parse_fifo(struct const int8_t *temp; unsigned int odr; int64_t ts_val; - struct inv_icm42600_accel_buffer buffer; + /* buffer is copied to userspace, zeroing it to avoid any data leak */ + struct inv_icm42600_accel_buffer buffer = { }; /* parse all fifo packets */ for (i = 0, no = 0; i < st->fifo.count; i += size, ++no) { @@ -768,8 +769,6 @@ int inv_icm42600_accel_parse_fifo(struct inv_icm42600_timestamp_apply_odr(ts, st->fifo.period, st->fifo.nb.total, no); - /* buffer is copied to userspace, zeroing it to avoid any data leak */ - memset(&buffer, 0, sizeof(buffer)); memcpy(&buffer.accel, accel, sizeof(buffer.accel)); /* convert 8 bits FIFO temperature in high resolution format */ buffer.temp = temp ? (*temp * 64) : 0; --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c @@ -761,7 +761,8 @@ int inv_icm42600_gyro_parse_fifo(struct const int8_t *temp; unsigned int odr; int64_t ts_val; - struct inv_icm42600_gyro_buffer buffer; + /* buffer is copied to userspace, zeroing it to avoid any data leak */ + struct inv_icm42600_gyro_buffer buffer = { }; /* parse all fifo packets */ for (i = 0, no = 0; i < st->fifo.count; i += size, ++no) { @@ -780,8 +781,6 @@ int inv_icm42600_gyro_parse_fifo(struct inv_icm42600_timestamp_apply_odr(ts, st->fifo.period, st->fifo.nb.total, no); - /* buffer is copied to userspace, zeroing it to avoid any data leak */ - memset(&buffer, 0, sizeof(buffer)); memcpy(&buffer.gyro, gyro, sizeof(buffer.gyro)); /* convert 8 bits FIFO temperature in high resolution format */ buffer.temp = temp ? (*temp * 64) : 0;