mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-18 18:46:53 +07:00
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>
94 lines
1.3 KiB
Plaintext
94 lines
1.3 KiB
Plaintext
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%name-prefix "perf_pmu_"
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%parse-param {struct list_head *format}
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%parse-param {char *name}
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%{
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#include <linux/compiler.h>
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#include <linux/list.h>
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#include <linux/bitmap.h>
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#include <string.h>
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#include "pmu.h"
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extern int perf_pmu_lex (void);
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#define ABORT_ON(val) \
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do { \
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if (val) \
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YYABORT; \
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} while (0)
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%}
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%token PP_CONFIG PP_CONFIG1 PP_CONFIG2
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%token PP_VALUE PP_ERROR
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%type <num> PP_VALUE
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%type <bits> bit_term
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%type <bits> bits
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%union
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{
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unsigned long num;
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DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
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}
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%%
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format:
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format format_term
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format_term
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format_term:
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PP_CONFIG ':' bits
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{
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ABORT_ON(perf_pmu__new_format(format, name,
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PERF_PMU_FORMAT_VALUE_CONFIG,
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$3));
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}
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PP_CONFIG1 ':' bits
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{
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ABORT_ON(perf_pmu__new_format(format, name,
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PERF_PMU_FORMAT_VALUE_CONFIG1,
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$3));
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}
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PP_CONFIG2 ':' bits
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{
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ABORT_ON(perf_pmu__new_format(format, name,
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PERF_PMU_FORMAT_VALUE_CONFIG2,
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$3));
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}
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bits:
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bits ',' bit_term
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{
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bitmap_or($$, $1, $3, 64);
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}
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bit_term
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{
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memcpy($$, $1, sizeof($1));
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}
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bit_term:
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PP_VALUE '-' PP_VALUE
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{
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perf_pmu__set_format($$, $1, $3);
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}
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PP_VALUE
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{
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perf_pmu__set_format($$, $1, 0);
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}
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%%
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void perf_pmu_error(struct list_head *list __maybe_unused,
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char *name __maybe_unused,
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char const *msg __maybe_unused)
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{
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}
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