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Message-ID: <201811270913.GKbNgjbp%fengguang.wu@intel.com>
Date: Tue, 27 Nov 2018 09:46:16 +0800
From: kbuild test robot <lkp@...el.com>
To: "Paul E. McKenney" <paulmck@...ux.ibm.com>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: [rcu:dev.2018.11.15a 28/34] htmldocs: include/linux/rcupdate.h:892:
warning: Function parameter or member 'f' not described in
'rcu_head_after_call_rcu'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2018.11.15a
head: 4bf88a0cb428c6118bd92984bc3dddda2db93917
commit: 89501eaefe1cbf2a0789cb0e9588ec47aa3b0a79 [28/34] rcu: Docbook for rcu_head_init() and rcu_head_after_call_rcu()
reproduce: make htmldocs
All warnings (new ones prefixed by >>):
WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
kernel/resource.c:337: warning: Function parameter or member 'start' not described in 'find_next_iomem_res'
kernel/resource.c:337: warning: Function parameter or member 'end' not described in 'find_next_iomem_res'
kernel/resource.c:337: warning: Function parameter or member 'flags' not described in 'find_next_iomem_res'
kernel/resource.c:337: warning: Function parameter or member 'desc' not described in 'find_next_iomem_res'
kernel/resource.c:337: warning: Function parameter or member 'first_lvl' not described in 'find_next_iomem_res'
kernel/resource.c:337: warning: Function parameter or member 'res' not described in 'find_next_iomem_res'
kernel/resource.c:409: warning: Function parameter or member 'arg' not described in 'walk_iomem_res_desc'
kernel/resource.c:409: warning: Function parameter or member 'func' not described in 'walk_iomem_res_desc'
kernel/resource.c:409: warning: Function parameter or member 'arg' not described in 'walk_iomem_res_desc'
kernel/resource.c:409: warning: Function parameter or member 'func' not described in 'walk_iomem_res_desc'
>> include/linux/rcupdate.h:892: warning: Function parameter or member 'f' not described in 'rcu_head_after_call_rcu'
include/linux/rcupdate.h:892: warning: Excess function parameter 'func' description in 'rcu_head_after_call_rcu'
include/linux/rcupdate_wait.h:1: warning: no structured comments found
include/linux/rcutree.h:1: warning: no structured comments found
kernel/rcu/tree.c:710: warning: Excess function parameter 'irq' description in 'rcu_nmi_exit'
include/linux/gfp.h:1: warning: no structured comments found
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.ibss' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.connect' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.keys' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.ie' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.ie_len' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.bssid' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.ssid' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.default_key' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.default_mgmt_key' not described in 'wireless_dev'
include/net/cfg80211.h:4439: warning: Function parameter or member 'wext.prev_bssid_valid' not described in 'wireless_dev'
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
include/net/cfg80211.h:2838: warning: cannot understand function prototype: 'struct cfg80211_ftm_responder_stats '
vim +892 include/linux/rcupdate.h
74de6960 Paul E. McKenney 2018-07-24 876
89501eae Paul E. McKenney 2018-11-20 877 /**
74de6960 Paul E. McKenney 2018-07-24 878 * rcu_head_after_call_rcu - Has this rcu_head been passed to call_rcu()?
74de6960 Paul E. McKenney 2018-07-24 879 * @rhp: The rcu_head structure to test.
74de6960 Paul E. McKenney 2018-07-24 880 * @func: The function passed to call_rcu() along with @rhp.
74de6960 Paul E. McKenney 2018-07-24 881 *
74de6960 Paul E. McKenney 2018-07-24 882 * Returns @true if the @rhp has been passed to call_rcu() with @func,
74de6960 Paul E. McKenney 2018-07-24 883 * and @false otherwise. Emits a warning in any other case, including
74de6960 Paul E. McKenney 2018-07-24 884 * the case where @rhp has already been invoked after a grace period.
74de6960 Paul E. McKenney 2018-07-24 885 * Calls to this function must not race with callback invocation. One way
74de6960 Paul E. McKenney 2018-07-24 886 * to avoid such races is to enclose the call to rcu_head_after_call_rcu()
74de6960 Paul E. McKenney 2018-07-24 887 * in an RCU read-side critical section that includes a read-side fetch
74de6960 Paul E. McKenney 2018-07-24 888 * of the pointer to the structure containing @rhp.
74de6960 Paul E. McKenney 2018-07-24 889 */
74de6960 Paul E. McKenney 2018-07-24 890 static inline bool
74de6960 Paul E. McKenney 2018-07-24 891 rcu_head_after_call_rcu(struct rcu_head *rhp, rcu_callback_t f)
74de6960 Paul E. McKenney 2018-07-24 @892 {
74de6960 Paul E. McKenney 2018-07-24 893 if (READ_ONCE(rhp->func) == f)
74de6960 Paul E. McKenney 2018-07-24 894 return true;
74de6960 Paul E. McKenney 2018-07-24 895 WARN_ON_ONCE(READ_ONCE(rhp->func) != (rcu_callback_t)~0L);
74de6960 Paul E. McKenney 2018-07-24 896 return false;
74de6960 Paul E. McKenney 2018-07-24 897 }
74de6960 Paul E. McKenney 2018-07-24 898
:::::: The code at line 892 was first introduced by commit
:::::: 74de6960c99d8df0d09fb29a7b014cb9c5571e2b rcu: Provide functions for determining if call_rcu() has been invoked
:::::: TO: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
:::::: CC: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
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