forked from Minki/linux
1d037ca164
perf defines both __used and __unused variables to use for marking
unused variables. The variable __used is defined to
__attribute__((__unused__)), which contradicts the kernel definition to
__attribute__((__used__)) for new gcc versions. On Android, __used is
also defined in system headers and this leads to warnings like: warning:
'__used__' attribute ignored
__unused is not defined in the kernel and is not a standard definition.
If __unused is included everywhere instead of __used, this leads to
conflicts with glibc headers, since glibc has a variables with this name
in its headers.
The best approach is to use __maybe_unused, the definition used in the
kernel for __attribute__((unused)). In this way there is only one
definition in perf sources (instead of 2 definitions that point to the
same thing: __used and __unused) and it works on both Linux and Android.
This patch simply replaces all instances of __used and __unused with
__maybe_unused.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347315303-29906-7-git-send-email-irina.tirdea@intel.com
[ committer note: fixed up conflict with a116e05 in builtin-sched.c ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
102 lines
2.1 KiB
C
102 lines
2.1 KiB
C
/*
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* Based on intlist.c by:
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* (c) 2009 Arnaldo Carvalho de Melo <acme@redhat.com>
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*
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* Licensed under the GPLv2.
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*/
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#include <errno.h>
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#include <stdlib.h>
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#include <linux/compiler.h>
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#include "intlist.h"
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static struct rb_node *intlist__node_new(struct rblist *rblist __maybe_unused,
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const void *entry)
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{
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int i = (int)((long)entry);
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struct rb_node *rc = NULL;
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struct int_node *node = malloc(sizeof(*node));
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if (node != NULL) {
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node->i = i;
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rc = &node->rb_node;
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}
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return rc;
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}
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static void int_node__delete(struct int_node *ilist)
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{
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free(ilist);
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}
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static void intlist__node_delete(struct rblist *rblist __maybe_unused,
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struct rb_node *rb_node)
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{
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struct int_node *node = container_of(rb_node, struct int_node, rb_node);
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int_node__delete(node);
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}
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static int intlist__node_cmp(struct rb_node *rb_node, const void *entry)
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{
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int i = (int)((long)entry);
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struct int_node *node = container_of(rb_node, struct int_node, rb_node);
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return node->i - i;
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}
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int intlist__add(struct intlist *ilist, int i)
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{
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return rblist__add_node(&ilist->rblist, (void *)((long)i));
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}
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void intlist__remove(struct intlist *ilist, struct int_node *node)
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{
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rblist__remove_node(&ilist->rblist, &node->rb_node);
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}
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struct int_node *intlist__find(struct intlist *ilist, int i)
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{
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struct int_node *node = NULL;
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struct rb_node *rb_node = rblist__find(&ilist->rblist, (void *)((long)i));
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if (rb_node)
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node = container_of(rb_node, struct int_node, rb_node);
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return node;
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}
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struct intlist *intlist__new(void)
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{
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struct intlist *ilist = malloc(sizeof(*ilist));
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if (ilist != NULL) {
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rblist__init(&ilist->rblist);
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ilist->rblist.node_cmp = intlist__node_cmp;
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ilist->rblist.node_new = intlist__node_new;
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ilist->rblist.node_delete = intlist__node_delete;
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}
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return ilist;
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}
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void intlist__delete(struct intlist *ilist)
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{
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if (ilist != NULL)
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rblist__delete(&ilist->rblist);
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}
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struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx)
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{
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struct int_node *node = NULL;
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struct rb_node *rb_node;
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rb_node = rblist__entry(&ilist->rblist, idx);
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if (rb_node)
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node = container_of(rb_node, struct int_node, rb_node);
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return node;
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}
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