/* * 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"); } r> summaryrefslogtreecommitdiff
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authorJack Morgenstein <jackm@dev.mellanox.co.il>2017-01-15 20:15:00 +0200
committerDoug Ledford <dledford@redhat.com>2017-01-27 14:29:04 -0500
commitb4cfe3971f6eab542dd7ecc398bfa1aeec889934 (patch)
treec7ad49d05da0535170c8e7710cd44ae1cecc271f /tools/objtool/arch
parent2d4b21e0a2913612274a69a3ba1bfee4cffc6e77 (diff)
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
If IPV6 has not been enabled in the underlying kernel, we must avoid calling IPV6 procedures in rdma_cm.ko. This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements surrounding any code which calls external IPV6 procedures. In the instance fixed here, procedure cma_bind_addr() called ipv6_addr_type() -- which resulted in calling external procedure __ipv6_addr_type(). Fixes: 6c26a77124ff ("RDMA/cma: fix IPv6 address resolution") Cc: <stable@vger.kernel.org> # v4.2+ Cc: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'tools/objtool/arch')