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Adi Nata
a0275efa65
Add a KUnit test suite for the polynomial_calc() function, which had no in-kernel test coverage. The tests verify correct evaluation of constant, linear, quadratic, and cubic polynomials, including negative coefficients, negative input data, zero-coefficient terms. The Kconfig entry uses 'select POLYNOMIAL' rather than 'depends on POLYNOMIAL' because POLYNOMIAL is a promptless tristate that cannot be manually enabled on UML without an explicit selector. Link: https://lore.kernel.org/[email protected] Signed-off-by: Adi Nata <[email protected]> Cc: Maxim Kaurkin <[email protected]> Cc: Serge Semin <[email protected]> Cc: Guenter Roeck <[email protected]> Cc: Brendan Higgins <[email protected]> Cc: David Gow <[email protected]> Cc: Rae Moar <[email protected]> Signed-off-by: Andrew Morton <[email protected]>