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kconfig: display recursive dependency resolution hint just once

Commit 1c199f2878f6 ("kbuild: document recursive dependency limitation
/ resolution") probably intended to show a hint along with "recursive
dependency detected!" error, but it missed to add {...} guard, and the
hint is displayed in every loop of the dep_stack traverse, annoyingly.

This error was detected by GCC's -Wmisleading-indentation when switching
to build-time generation of lexer/parser.

scripts/kconfig/symbol.c: In function ‘sym_check_print_recursive’:
scripts/kconfig/symbol.c:1150:3: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
   if (stack->sym == last_sym)
   ^~
scripts/kconfig/symbol.c:1153:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
    fprintf(stderr, "For a resolution refer to Documentation/kbuild/kconfig-language.txt\n");
    ^~~~~~~

I could simply add {...} to surround the three fprintf(), but I rather
chose to move the hint after the loop to make the whole message readable.

Fixes: 1c199f2878f6 ("kbuild: document recursive dependency limitation / resolution"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>

[upstream commit e3b03bf29d6b99fab7001fb20c33fe54928c157a]
Fixes #1000
Signed-off-by: Chris Packham <judge.packham@gmail.com>
dev-linux
Masahiro Yamada 5 years ago committed by Chris Packham
parent
commit
eef8eb4033
  1. 8
      kconfig/symbol.c

8
kconfig/symbol.c

@ -1150,8 +1150,7 @@ static void sym_check_print_recursive(struct symbol *last_sym)
if (stack->sym == last_sym)
fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
prop->file->name, prop->lineno);
fprintf(stderr, "For a resolution refer to Documentation/kbuild/kconfig-language.txt\n");
fprintf(stderr, "subsection \"Kconfig recursive dependency limitations\"\n");
if (stack->expr) {
fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
prop->file->name, prop->lineno,
@ -1181,6 +1180,11 @@ static void sym_check_print_recursive(struct symbol *last_sym)
}
}
fprintf(stderr,
"For a resolution refer to Documentation/kbuild/kconfig-language.txt\n"
"subsection \"Kconfig recursive dependency limitations\"\n"
"\n");
if (check_top == &cv_stack)
dep_stack_remove();
}

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