/* * 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"); } class='tabs'> summaryrefslogtreecommitdiff
path: root/net/nfc/nci
diff options
context:
space:
mode:
authorWillem de Bruijn <willemb@google.com>2017-01-02 17:19:44 -0500
committerPablo Neira Ayuso <pablo@netfilter.org>2017-01-09 17:24:54 +0100
commitb5040f6c33a51e6e1fddab75baf0f45d4943cde4 (patch)
treeefe41007d93a0e2a98b36dee97918628d7a8c434 /net/nfc/nci
parent244b531bee2bdcfcd35ca2fff9cc7d073b3aa060 (diff)
ebtables: use match, target and data copy_to_user helpers
Convert ebtables to copying entries, matches and targets one by one. The solution is analogous to that of generic xt_(match|target)_to_user helpers, but is applied to different structs. Convert existing helpers ebt_make_XXXname helpers that overwrite fields of an already copy_to_user'd struct with ebt_XXX_to_user helpers that copy all relevant fields of the struct from scratch. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/nfc/nci')