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# ea191d0f 09-Aug-2023 GONG, Ruiqi <gongruiqi1@huawei.com>

iio: irsd200: fix -Warray-bounds bug in irsd200_trigger_handler

When compiling with gcc 13 with -Warray-bounds enabled:

In file included from drivers/iio/proximity/irsd200.c:15:
In function ‘iio_pu

iio: irsd200: fix -Warray-bounds bug in irsd200_trigger_handler

When compiling with gcc 13 with -Warray-bounds enabled:

In file included from drivers/iio/proximity/irsd200.c:15:
In function ‘iio_push_to_buffers_with_timestamp’,
inlined from ‘irsd200_trigger_handler’ at drivers/iio/proximity/irsd200.c:770:2:
./include/linux/iio/buffer.h:42:46: error: array subscript ‘int64_t {aka long long int}[0]’
is partly outside array bounds of ‘s16[1]’ {aka ‘short int[1]’} [-Werror=array-bounds=]
42 | ((int64_t *)data)[ts_offset] = timestamp;
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
drivers/iio/proximity/irsd200.c: In function ‘irsd200_trigger_handler’:
drivers/iio/proximity/irsd200.c:763:13: note: object ‘buf’ of size 2
763 | s16 buf = 0;
| ^~~

The problem seems to be that irsd200_trigger_handler() is taking a s16
variable as an int64_t buffer. As Jonathan suggested [1], fix it by
extending the buffer to a two-element array of s64.

Link: https://github.com/KSPP/linux/issues/331
Link: https://lore.kernel.org/lkml/20230809181329.46c00a5d@jic23-huawei/ [1]
Fixes: 3db3562bc66e ("iio: Add driver for Murata IRS-D200")
Signed-off-by: GONG, Ruiqi <gongruiqi1@huawei.com>
Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Waqar Hameed <waqar.hameed@axis.com>
Tested-by: Waqar Hameed <waqar.hameed@axis.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230810035910.1334706-1-gongruiqi@huaweicloud.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Revision tags: v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39
# 3db3562b 19-Jul-2023 Waqar Hameed <waqar.hameed@axis.com>

iio: Add driver for Murata IRS-D200

Murata IRS-D200 is a PIR sensor for human detection. It has support for
raw data measurements and detection event notification.

Add a driver with support for tri

iio: Add driver for Murata IRS-D200

Murata IRS-D200 is a PIR sensor for human detection. It has support for
raw data measurements and detection event notification.

Add a driver with support for triggered buffer and events. Map the
various settings to the `iio` framework, e.g. threshold values, sampling
frequency, filter frequencies etc.

Signed-off-by: Waqar Hameed <waqar.hameed@axis.com>
Link: https://lore.kernel.org/r/d218a1bc75402b5ebd6e12a563f7315f83fe966c.1689753076.git.waqar.hameed@axis.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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