linux-kernel - [PATCH] kconfig: recalc symbol value before showing search results

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Date:	Fri, 19 Mar 2010 14:57:47 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-kbuild@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Michal Marek <mmarek@...e.cz>
Subject: [PATCH] kconfig: recalc symbol value before showing search results

A symbol's value won't be recalc-ed until we save config file or
enter the menu where the symbol sits.

So If I enable OPTIMIZE_FOR_SIZE, and search FUNCTION_GRAPH_TRACER:

  Symbol: FUNCTION_GRAPH_TRACER [=y]
  Prompt: Kernel Function Graph Tracer
    Defined at kernel/trace/Kconfig:140
    Depends on: ... [=y] && (!X86_32 [=y] || !CC_OPTIMIZE_FOR_SIZE [=y])
    ...

>From the dependency it should result in FUNCTION_GRAPH_TRACER=n,
but it still shows FUNCTION_GRAPH_TRACER=y.

Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 scripts/kconfig/symbol.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 6c8fbbb..dfef8d1 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -750,6 +750,7 @@ struct symbol **sym_re_search(const char *pattern)
 				return NULL;
 			}
 		}
+		sym_calc_value(sym);
 		sym_arr[cnt++] = sym;
 	}
 	if (sym_arr)
-- 1.6.3 
--
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