/* * Copyright (C) 2015-2016 Mentor Graphics * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * */ #include #include #include #include "watchdog_pretimeout.h" /** * pretimeout_noop - No operation on watchdog pretimeout event * @wdd - watchdog_device * * This function prints a message about pretimeout to kernel log. */ static void pretimeout_noop(struct watchdog_device *wdd) { pr_alert("watchdog%d: pretimeout event\n", wdd->id); } static struct watchdog_governor watchdog_gov_noop = { .name = "noop", .pretimeout = pretimeout_noop, }; static int __init watchdog_gov_noop_register(void) { return watchdog_register_governor(&watchdog_gov_noop); } static void __exit watchdog_gov_noop_unregister(void) { watchdog_unregister_governor(&watchdog_gov_noop); } module_init(watchdog_gov_noop_register); module_exit(watchdog_gov_noop_unregister); MODULE_AUTHOR("Vladimir Zapolskiy "); MODULE_DESCRIPTION("Panic watchdog pretimeout governor"); MODULE_LICENSE("GPL"); back net-next plumbingsTobias Klauser
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authorzhong jiang <zhongjiang@huawei.com>2017-01-24 15:18:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:26:14 -0800
commit3277953de2f31dd03c6375e9a9f680ac37fc9d27 (patch)
tree6ba22924faa1b82ef2f0277db10a3f5abdc44157 /include/net/ila.h
parent3705ccfdd1e8b539225ce20e3925a945cc788d67 (diff)
mm: do not export ioremap_page_range symbol for external module
Recently, I've found cases in which ioremap_page_range was used incorrectly, in external modules, leading to crashes. This can be partly attributed to the fact that ioremap_page_range is lower-level, with fewer protections, as compared to the other functions that an external module would typically call. Those include: ioremap_cache ioremap_nocache ioremap_prot ioremap_uc ioremap_wc ioremap_wt ...each of which wraps __ioremap_caller, which in turn provides a safer way to achieve the mapping. Therefore, stop EXPORT-ing ioremap_page_range. Link: http://lkml.kernel.org/r/1485173220-29010-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Suggested-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/net/ila.h')