/* * POWER Data Stream Control Register (DSCR) SPR test * * This test modifies the DSCR value through both the SPR number * based mtspr instruction and then makes sure that the same is * reflected through mfspr instruction using either of the SPR * numbers. * * When using the privilege state SPR, the instructions such as * mfspr or mtspr are priviledged and the kernel emulates them * for us. Instructions using problem state SPR can be exuecuted * directly without any emulation if the HW supports them. Else * they also get emulated by the kernel. * * Copyright 2013, Anton Blanchard, IBM Corporation. * Copyright 2015, Anshuman Khandual, IBM Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. */ #include "dscr.h" static int check_dscr(char *str) { unsigned long cur_dscr, cur_dscr_usr; cur_dscr = get_dscr(); cur_dscr_usr = get_dscr_usr(); if (cur_dscr != cur_dscr_usr) { printf("%s set, kernel get %lx != user get %lx\n", str, cur_dscr, cur_dscr_usr); return 1; } return 0; } int dscr_user(void) { int i; check_dscr(""); for (i = 0; i < COUNT; i++) { set_dscr(i); if (check_dscr("kernel")) return 1; } for (i = 0; i < COUNT; i++) { set_dscr_usr(i); if (check_dscr("user")) return 1; } return 0; } int main(int argc, char *argv[]) { return test_harness(dscr_user, "dscr_user_test"); } td>
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authorColin Ian King <colin.king@canonical.com>2017-01-11 15:36:20 +0000
committerMark Brown <broonie@kernel.org>2017-01-18 16:32:44 +0000
commitb98acbff9a05b371c5f0ca6e44a3af8ce9274379 (patch)
treed6835885f859a456e62ce93621041138d6a54f9b /sound/soc/soc-cache.c
parentd00b74613fb18dfd0a5aa99270ee2e72d5c808d7 (diff)
regulator: twl6030: fix range comparison, allowing vsel = 59
The range min_uV > 1350000 && min_uV <= 150000 is never reachable because of a typo in the previous range check and hence vsel = 59 is never reached. Fix the previous range check to enable the vsel = 59 setting. Fixes CoverityScan CID#728454 ("Logially dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-cache.c')