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 8C00232861A; Mon, 27 Oct 2025 19:14:02 +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=1761592442; cv=none; b=bY3wLgls/LmFBf9zOGbEScFU0SqQkZVe0zLNVT9emjKqjsYalcIRnlr0Juxf6ZA+WqnRUQBrGMjxWIKSh0Xlbo0qoOwQUswrqcpzCmJ8Ca2rqjZup8ucgXVXjMH7JstA253heRU8FOBWyqM0WzTyPuAZvxqLNAL/+JATt1gi5sY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761592442; c=relaxed/simple; bh=Gcm0PAQGGJVN8mMcrz7d3BPi9oG3J+losR5b+ZmjZu8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QNk463Xr/LqNvgzGWiK380mq5tDHeLV9vg2eqU/gggt1n0ExAMAEF7fYZcFyeGmbMztBzFGjWRAVaOkILDCDQJBPSRsmWbskyYmsdX50/mghyiziKiNHMC1Q3uI1fdC96aHbOEikDN+1JEN8t1an/S5ngK6XyuWItjAhli86yWY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=uyqbfYRG; 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="uyqbfYRG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCD70C4CEF1; Mon, 27 Oct 2025 19:14:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761592442; bh=Gcm0PAQGGJVN8mMcrz7d3BPi9oG3J+losR5b+ZmjZu8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uyqbfYRGACCsdd8bE5P+IwDht17Z2s+UJP11ud0/sd3UiHPh+yPAM+4EKJI9WVDmw XfmM4wRObj93hOO4Sq6NQHQftES6ik+DtPpiORN5Pm5cw4IaDB6fG2gnLroeceTaiu jTLlHeud5t1cPOZAifAWjrCe1MaVh+VWywtuQqeE= 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 6.1 123/157] iio: imu: inv_icm42600: use = { } instead of memset() Date: Mon, 27 Oct 2025 19:36:24 +0100 Message-ID: <20251027183504.549196324@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183501.227243846@linuxfoundation.org> References: <20251027183501.227243846@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 6.1-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 @@ -748,7 +748,8 @@ 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) { @@ -767,8 +768,6 @@ 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 @@ -760,7 +760,8 @@ 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) { @@ -779,8 +780,6 @@ 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;