perf expr: Add expr_ prefix for parse_ctx and parse_id

Adding expr_ prefix for parse_ctx and parse_id, to straighten out the
expr* namespace.

There's no functional change.

Signed-off-by: Jiri Olsa <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Cc: Anju T Sudhakar <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Cc: Greg Kroah-Hartman <[e-mail]>
Cc: Jin Yao <[e-mail]>
Cc: Joe Mario <[e-mail]>
Cc: Kajol Jain <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: Madhavan Srinivasan <[e-mail]>
Cc: Mamatha Inamdar <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Michael Ellerman <[e-mail]>
Cc: Michael Petlan <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Paul Mackerras <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Ravi Bangoria <[e-mail]>
Cc: Sukadev Bhattiprolu <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: [e-mail]
Link: http://lore.kernel.org/lkml/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/tests/expr.c

···
 #include <string.h>
 #include <linux/zalloc.h>
 
-static int test(struct parse_ctx *ctx, const char *e, double val2)
+static int test(struct expr_parse_ctx *ctx, const char *e, double val2)
 {
 	double val;
 
···
 	const char **other;
 	double val;
 	int i, ret;
-	struct parse_ctx ctx;
+	struct expr_parse_ctx ctx;
 	int num_other;
 
 	expr__ctx_init(&ctx);

tools/perf/util/expr.c

···
 #endif
 
 /* Caller must make sure id is allocated */
-void expr__add_id(struct parse_ctx *ctx, const char *name, double val)
+void expr__add_id(struct expr_parse_ctx *ctx, const char *name, double val)
 {
 	int idx;
 
···
 	ctx->ids[idx].val = val;
 }
 
-void expr__ctx_init(struct parse_ctx *ctx)
+void expr__ctx_init(struct expr_parse_ctx *ctx)
 {
 	ctx->num_ids = 0;
 }
 
 static int
-__expr__parse(double *val, struct parse_ctx *ctx, const char *expr,
+__expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr,
 	      int start)
 {
 	YY_BUFFER_STATE buffer;
···
 	return ret;
 }
 
-int expr__parse(double *final_val, struct parse_ctx *ctx, const char *expr)
+int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr)
 {
 	return __expr__parse(final_val, ctx, expr, EXPR_PARSE) ? -1 : 0;
 }
···
 		     int *num_other)
 {
 	int err, i = 0, j = 0;
-	struct parse_ctx ctx;
+	struct expr_parse_ctx ctx;
 
 	expr__ctx_init(&ctx);
 	err = __expr__parse(NULL, &ctx, expr, EXPR_OTHER);

tools/perf/util/expr.h

···
 #define EXPR_MAX_OTHER 20
 #define MAX_PARSE_ID EXPR_MAX_OTHER
 
-struct parse_id {
+struct expr_parse_id {
 	const char *name;
 	double val;
 };
 
-struct parse_ctx {
+struct expr_parse_ctx {
 	int num_ids;
-	struct parse_id ids[MAX_PARSE_ID];
+	struct expr_parse_id ids[MAX_PARSE_ID];
 };
 
-void expr__ctx_init(struct parse_ctx *ctx);
-void expr__add_id(struct parse_ctx *ctx, const char *id, double val);
-int expr__parse(double *final_val, struct parse_ctx *ctx, const char *expr);
+void expr__ctx_init(struct expr_parse_ctx *ctx);
+void expr__add_id(struct expr_parse_ctx *ctx, const char *id, double val);
+int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr);
 int expr__find_other(const char *expr, const char *one, const char ***other,
 		int *num_other);
 

tools/perf/util/expr.y

···
 %define api.pure full
 
 %parse-param { double *final_val }
-%parse-param { struct parse_ctx *ctx }
+%parse-param { struct expr_parse_ctx *ctx }
 %parse-param {void *scanner}
 %lex-param {void* scanner}
 
···
 
 %{
 static void expr_error(double *final_val __maybe_unused,
-		       struct parse_ctx *ctx __maybe_unused,
+		       struct expr_parse_ctx *ctx __maybe_unused,
 		       void *scanner,
 		       const char *s)
 {
 	pr_debug("%s\n", s);
 }
 
-static int lookup_id(struct parse_ctx *ctx, char *id, double *val)
+static int lookup_id(struct expr_parse_ctx *ctx, char *id, double *val)
 {
 	int i;
 

tools/perf/util/stat-shadow.c

···
 			   struct runtime_stat *st)
 {
 	print_metric_t print_metric = out->print_metric;
-	struct parse_ctx pctx;
+	struct expr_parse_ctx pctx;
 	double ratio, scale;
 	int i;
 	void *ctxp = out->ctx;