[RFC 3/4] kernel/panic: initialize taint_flags[] using a macro

From: Jani Nikula
Date: Mon Mar 25 2024 - 13:07:02 EST


Make it easier to extend struct taint_flags in follow-up.

Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
kernel/panic.c | 46 +++++++++++++++++++++++++++-------------------
1 file changed, 27 insertions(+), 19 deletions(-)

diff --git a/kernel/panic.c b/kernel/panic.c
index d2d5f0a4b514..e1f87ba51ba1 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -473,32 +473,40 @@ void panic(const char *fmt, ...)

EXPORT_SYMBOL(panic);

+#define TAINT_FLAG(taint, _c_true, _c_false, _module) \
+ [ TAINT_##taint ] = { \
+ .c_true = _c_true, .c_false = _c_false, \
+ .module = _module, \
+ }
+
/*
* TAINT_FORCED_RMMOD could be a per-module flag but the module
* is being removed anyway.
*/
const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
- [ TAINT_PROPRIETARY_MODULE ] = { 'P', 'G', true },
- [ TAINT_FORCED_MODULE ] = { 'F', ' ', true },
- [ TAINT_CPU_OUT_OF_SPEC ] = { 'S', ' ', false },
- [ TAINT_FORCED_RMMOD ] = { 'R', ' ', false },
- [ TAINT_MACHINE_CHECK ] = { 'M', ' ', false },
- [ TAINT_BAD_PAGE ] = { 'B', ' ', false },
- [ TAINT_USER ] = { 'U', ' ', false },
- [ TAINT_DIE ] = { 'D', ' ', false },
- [ TAINT_OVERRIDDEN_ACPI_TABLE ] = { 'A', ' ', false },
- [ TAINT_WARN ] = { 'W', ' ', false },
- [ TAINT_CRAP ] = { 'C', ' ', true },
- [ TAINT_FIRMWARE_WORKAROUND ] = { 'I', ' ', false },
- [ TAINT_OOT_MODULE ] = { 'O', ' ', true },
- [ TAINT_UNSIGNED_MODULE ] = { 'E', ' ', true },
- [ TAINT_SOFTLOCKUP ] = { 'L', ' ', false },
- [ TAINT_LIVEPATCH ] = { 'K', ' ', true },
- [ TAINT_AUX ] = { 'X', ' ', true },
- [ TAINT_RANDSTRUCT ] = { 'T', ' ', true },
- [ TAINT_TEST ] = { 'N', ' ', true },
+ TAINT_FLAG(PROPRIETARY_MODULE, 'P', 'G', true),
+ TAINT_FLAG(FORCED_MODULE, 'F', ' ', true),
+ TAINT_FLAG(CPU_OUT_OF_SPEC, 'S', ' ', false),
+ TAINT_FLAG(FORCED_RMMOD, 'R', ' ', false),
+ TAINT_FLAG(MACHINE_CHECK, 'M', ' ', false),
+ TAINT_FLAG(BAD_PAGE, 'B', ' ', false),
+ TAINT_FLAG(USER, 'U', ' ', false),
+ TAINT_FLAG(DIE, 'D', ' ', false),
+ TAINT_FLAG(OVERRIDDEN_ACPI_TABLE, 'A', ' ', false),
+ TAINT_FLAG(WARN, 'W', ' ', false),
+ TAINT_FLAG(CRAP, 'C', ' ', true),
+ TAINT_FLAG(FIRMWARE_WORKAROUND, 'I', ' ', false),
+ TAINT_FLAG(OOT_MODULE, 'O', ' ', true),
+ TAINT_FLAG(UNSIGNED_MODULE, 'E', ' ', true),
+ TAINT_FLAG(SOFTLOCKUP, 'L', ' ', false),
+ TAINT_FLAG(LIVEPATCH, 'K', ' ', true),
+ TAINT_FLAG(AUX, 'X', ' ', true),
+ TAINT_FLAG(RANDSTRUCT, 'T', ' ', true),
+ TAINT_FLAG(TEST, 'N', ' ', true),
};

+#undef TAINT_FLAG
+
static void print_tainted_seq(struct seq_buf *s)
{
int i;
--
2.39.2