[PATCH] Fix usage of true and false as field names in struct taint_flag

Valdis Kletnieks
2016-12-22T18:56:51Z

commit 7fd8329ba502ef76dd91db561c7aed696b2c7720
Author: Petr Mladek <pmladek@suse.com>
Date: Wed Sep 21 13:47:22 2016 +0200

taint/module: Clean up global and module taint flags handling

Contains this chunk:

--- a/include/linux/kernel.h

+struct taint_flag {
+ char true; /* character printed when tainted */
+ char false; /* character printed when not tainted */
+ bool module; /* also show as a per-module taint flag */
+};

and hilarity ensues when an out-of-tree module has this:

# ifndef true
# define true (1)
# endif
# ifndef false
# define false (0)
# endif

Change the field names to not shadow something likely to be used
by third-party modules.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>

---
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 56aec84237ad..420d4b87feb0 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -514,8 +514,8 @@ extern enum system_states {
#define TAINT_FLAGS_COUNT 16

struct taint_flag {
- char true; /* character printed when tainted */
- char false; /* character printed when not tainted */
+ char tainted; /* character printed when tainted */
+ char untainted; /* character printed when not tainted */
bool module; /* also show as a per-module taint flag */
};

diff --git a/kernel/module.c b/kernel/module.c
index f7482db0f843..6a0434de5dbd 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1145,7 +1145,7 @@ static size_t module_flags_taint(struct module *mod, char *buf)

for (i = 0; i < TAINT_FLAGS_COUNT; i++) {
if (taint_flags[i].module && test_bit(i, &mod->taints))
- buf[l++] = taint_flags[i].true;
+ buf[l++] = taint_flags[i].tainted;
}

return l;
diff --git a/kernel/panic.c b/kernel/panic.c
index c51edaa04fce..e02da0928910 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -355,7 +355,7 @@ const char *print_tainted(void)
for (i = 0; i < TAINT_FLAGS_COUNT; i++) {
const struct taint_flag *t = &taint_flags[i];
*s++ = test_bit(i, &tainted_mask) ?
- t->true : t->false;
+ t->tainted : t->untainted;
}
*s = 0;
} else