[RFC] taint/module: Fix problems when out-of-kernel driver defines true or false

[Larry Finger]

Commit 7fd8329ba502 ("taint/module: Clean up global and module taint
flags handling") used the key words true and false as character members
of a new struct. These names cause problems when out-of-kernel modules
such as VirtualBox include their own definitions of true and false.

Fixes: 7fd8329ba502 ("taint/module: Clean up global and module taint flags 
handling")
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
Cc: Petr Mladek <pmla...@suse.com>
Cc: Jessica Yu <j...@redhat.com>
Cc: Rusty Russell <ru...@rustcorp.com.au>
---
 include/linux/kernel.h | 4 ++--
 kernel/module.c        | 2 +-
 kernel/panic.c         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 56aec84..cb09238 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 c_true;    /* character printed when tainted */
+       char c_false;   /* 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 f7482db..5f7d482 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].c_true;
        }
 
        return l;
diff --git a/kernel/panic.c b/kernel/panic.c
index c51edaa..901c4fb 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->c_true : t->c_false;
                }
                *s = 0;
        } else
-- 
2.10.2