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The patch33ec3e5fc1: "iio: adc: adding support for MCP3564 ADC" leads to the following Smatch static checker warning: smatch warnings: drivers/iio/adc/mcp3564.c:1105 mcp3564_fill_scale_tbls() warn: unsigned '__x' is never less than zero. vim +/__x +1105 drivers/iio/adc/mcp3564.c 1094 1095 static void mcp3564_fill_scale_tbls(struct mcp3564_state *adc) 1096 { ..... 1103 for (i = 0; i < MCP3564_MAX_PGA; i++) { 1104 ref = adc->vref_mv; > 1105 tmp1 = shift_right((u64)ref * NANO, pow); 1106 div_u64_rem(tmp1, NANO, &tmp0); 1107 ..... 1113 } Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202309280738.NWjVfVt4-lkp@intel.com/ Fixes:33ec3e5fc1(iio: adc: adding support for MCP3564 ADC) Signed-off-by: Marius Cristea <marius.cristea@microchip.com> Link: https://lore.kernel.org/r/20231013132333.10582-1-marius.cristea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.