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Date: Fri, 1 Oct 2021 14:32:45 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: Masahiro Yamada <masahiroy@...nel.org>,
linux-kernel@...r.kernel.org
Subject: [PATCH 02/10] kconfig: refactor conf_write_heading()
All the call sites of conf_write_heading() pass NULL to the third
argument, and it is not used in the function.
Also, the print_comment hooks are doing much more complex than
needed.
Rewrite the code.
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---
scripts/kconfig/confdata.c | 95 +++++++++++++-------------------------
1 file changed, 33 insertions(+), 62 deletions(-)
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 9b2271eb43d6..ed1bb8ba971b 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -161,7 +161,6 @@ static int conf_touch_dep(const char *name)
struct conf_printer {
void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
- void (*print_comment)(FILE *, const char *, void *);
};
static void conf_warning(const char *fmt, ...)
@@ -594,6 +593,36 @@ int conf_read(const char *name)
return 0;
}
+struct comment_style {
+ const char *comment_line;
+ const char *comment_block_begin;
+ const char *comment_block_end;
+};
+
+static const struct comment_style comment_style_pound = {
+ .comment_line = "#",
+ .comment_block_begin = "#",
+ .comment_block_end = "#",
+};
+
+static const struct comment_style comment_style_c = {
+ .comment_line = " *",
+ .comment_block_begin = "/*",
+ .comment_block_end = " */",
+};
+
+static void conf_write_heading(FILE *fp, const struct comment_style *cs)
+{
+ fprintf(fp, "%s\n", cs->comment_block_begin);
+
+ fprintf(fp, "%s Automatically generated file; DO NOT EDIT.\n",
+ cs->comment_line);
+
+ fprintf(fp, "%s %s\n", cs->comment_line, rootmenu.prompt->text);
+
+ fprintf(fp, "%s\n", cs->comment_block_end);
+}
+
/*
* Kconfig configuration printer
*
@@ -625,30 +654,9 @@ kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
}
-static void
-kconfig_print_comment(FILE *fp, const char *value, void *arg)
-{
- const char *p = value;
- size_t l;
-
- for (;;) {
- l = strcspn(p, "\n");
- fprintf(fp, "#");
- if (l) {
- fprintf(fp, " ");
- xfwrite(p, l, 1, fp);
- p += l;
- }
- fprintf(fp, "\n");
- if (*p++ == '\0')
- break;
- }
-}
-
static struct conf_printer kconfig_printer_cb =
{
.print_symbol = kconfig_print_symbol,
- .print_comment = kconfig_print_comment,
};
/*
@@ -697,32 +705,9 @@ header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
}
-static void
-header_print_comment(FILE *fp, const char *value, void *arg)
-{
- const char *p = value;
- size_t l;
-
- fprintf(fp, "/*\n");
- for (;;) {
- l = strcspn(p, "\n");
- fprintf(fp, " *");
- if (l) {
- fprintf(fp, " ");
- xfwrite(p, l, 1, fp);
- p += l;
- }
- fprintf(fp, "\n");
- if (*p++ == '\0')
- break;
- }
- fprintf(fp, " */\n");
-}
-
static struct conf_printer header_printer_cb =
{
.print_symbol = header_print_symbol,
- .print_comment = header_print_comment,
};
static void conf_write_symbol(FILE *fp, struct symbol *sym,
@@ -746,20 +731,6 @@ static void conf_write_symbol(FILE *fp, struct symbol *sym,
free(escaped);
}
-static void
-conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
-{
- char buf[256];
-
- snprintf(buf, sizeof(buf),
- "\n"
- "Automatically generated file; DO NOT EDIT.\n"
- "%s\n",
- rootmenu.prompt->text);
-
- printer->print_comment(fp, buf, printer_arg);
-}
-
/*
* Write out a minimal config.
* All values that has default values are skipped as this is redundant.
@@ -876,7 +847,7 @@ int conf_write(const char *name)
if (!out)
return 1;
- conf_write_heading(out, &kconfig_printer_cb, NULL);
+ conf_write_heading(out, &comment_style_pound);
if (!conf_get_changed())
sym_clear_all_valid();
@@ -1080,8 +1051,8 @@ int conf_write_autoconf(int overwrite)
return 1;
}
- conf_write_heading(out, &kconfig_printer_cb, NULL);
- conf_write_heading(out_h, &header_printer_cb, NULL);
+ conf_write_heading(out, &comment_style_pound);
+ conf_write_heading(out_h, &comment_style_c);
for_all_symbols(i, sym) {
sym_calc_value(sym);
--
2.30.2
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