From: Breno Leitao <leitao@debian.org>
To: Ard Biesheuvel <ardb@kernel.org>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org,
Breno Leitao <leitao@debian.org>,
kernel-team@meta.com, kernel test robot <lkp@intel.com>
Subject: [PATCH 0/2] efi/runtime-wrappers: fix linker warnings
Date: Mon, 13 Jul 2026 06:06:46 -0700 [thread overview]
Message-ID: <20260713-efi_fixes-v1-0-cdde378d9df9@debian.org> (raw)
When I've submitted my last patchset titled "efi/runtime-wrappers: bound
the wait for EFI runtime service calls", I've got two reports
1) efi_rts_park_worker() loops forever and never returns, but wasn't
marked __noreturn, so objtool warns about the unreachable code after
the call.
https://lore.kernel.org/all/202607100848.iWPxdkhX-lkp@intel.com/
2) efi_runtime_lock_owner is optimised away under CONFIG_BUG=n, leaving a
dangling debug-info reference that breaks the link.
https://lore.kernel.org/all/202607100518.uMJJPDfP-lkp@intel.com/
Patch 1 fixes the objtool warning; patch 2 fixes the link error.
Signed-off-by: Breno Leitao <leitao@debian.org>
---
Breno Leitao (2):
efi/runtime-wrappers: mark efi_rts_park_worker() as __noreturn
efi/runtime-wrappers: mark efi_runtime_lock_owner as __used
drivers/firmware/efi/runtime-wrappers.c | 4 ++--
include/linux/efi.h | 2 +-
tools/objtool/noreturns.h | 1 +
3 files changed, 4 insertions(+), 3 deletions(-)
---
base-commit: cf790fdb851867532b9a0f88588dcce648dbffe9
change-id: 20260713-efi_fixes-b7193dd37bcf
Best regards,
--
Breno Leitao <leitao@debian.org>
next reply other threads:[~2026-07-13 13:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-13 13:06 Breno Leitao [this message]
2026-07-13 13:06 ` [PATCH 1/2] efi/runtime-wrappers: mark efi_rts_park_worker() as __noreturn Breno Leitao
2026-07-13 13:06 ` [PATCH 2/2] efi/runtime-wrappers: mark efi_runtime_lock_owner as __used Breno Leitao
2026-07-14 6:50 ` [PATCH 0/2] efi/runtime-wrappers: fix linker warnings Ard Biesheuvel
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