From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
To: linux-arm-kernel@lists.infradead.org
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>,
Russell King <linux@armlinux.org.uk>,
Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 11/11] ARM: BUG: Add WARN support via __WARN_FLAGS()
Date: Sat, 10 Oct 2026 00:21:18 +0200 [thread overview]
Message-ID: <20261010-arm_warning-v1-11-ddf4be42ae0d@breakpoint.cc> (raw)
In-Reply-To: <20261010-arm_warning-v1-0-ddf4be42ae0d@breakpoint.cc>
the recent rework makes it possible to add support for WARN_ON() and
friends by defining __WARN_FLAGS(). The __BUG_FLAGS() macro needs to
pass BUGFLAG_WARNING as option to distinguish it from BUG() entries.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
---
arch/arm/include/asm/bug.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 963365b3158b9..f9c093bac432f 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -65,6 +65,9 @@ do { \
unreachable(); \
} while (0)
+#define __WARN_FLAGS(cond_str, flags) \
+ asm volatile(__stringify(__BUG_FLAGS(__FILE__, __LINE__, BUGFLAG_WARNING|(flags))))
+
#define HAVE_ARCH_BUG
#include <asm-generic/bug.h>
--
2.55.0
prev parent reply other threads:[~2026-10-09 22:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-09 22:21 [PATCH 00/11] ARM: Use invalid opcode also for warnings Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 01/11] ARM: BUG: Move the assembly out of __BUG() macro Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 02/11] ARM: BUG: Spent each entry in __BUG__LINE() its own line Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 03/11] ARM: BUG: Move the section right after the opcode Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 04/11] ARM: BUG: Move file/ line encoding into a custom macro Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 05/11] ARM: BUG: Move __bug_table creation to __BUG_ENTRY_GENERIC() macro Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 06/11] ARM: BUG: Move the __BUG() out of CONFIG_DEBUG_BUGVERBOSE Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 07/11] ARM: BUG: Pass a flags argument to __BUG__LINE() Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 08/11] ARM: BUG: Move BUG() into the do-while loop Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 09/11] ARM: traps: Move the BUG handling from die() to do_undefinstr() Sebastian Andrzej Siewior
2026-10-09 22:21 ` [PATCH 10/11] ARM: traps: Add handling for warnings to handle_bug_opcode() Sebastian Andrzej Siewior
2026-10-09 22:21 ` Sebastian Andrzej Siewior [this message]
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