linux-kernel - [RFC PATCH 1/7] efi: Add missing static initializer for efi_mm::cpus_allowed

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Message-ID: <20250514174339.1834871-10-ardb+git@google.com>
Date: Wed, 14 May 2025 19:43:41 +0200
From: Ard Biesheuvel <ardb+git@...gle.com>
To: linux-efi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	Ard Biesheuvel <ardb@...nel.org>, Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>, 
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Peter Zijlstra <peterz@...radead.org>, stable@...r.kernel.org
Subject: [RFC PATCH 1/7] efi: Add missing static initializer for efi_mm::cpus_allowed_lock

From: Ard Biesheuvel <ardb@...nel.org>

Initialize the cpus_allowed_lock struct member of efi_mm.

Cc: <stable@...r.kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
---
 drivers/firmware/efi/efi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 7309394b8fc9..59a56661937c 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -73,6 +73,9 @@ struct mm_struct efi_mm = {
 	.page_table_lock	= __SPIN_LOCK_UNLOCKED(efi_mm.page_table_lock),
 	.mmlist			= LIST_HEAD_INIT(efi_mm.mmlist),
 	.cpu_bitmap		= { [BITS_TO_LONGS(NR_CPUS)] = 0},
+#ifdef CONFIG_SCHED_MM_CID
+	.cpus_allowed_lock	= __RAW_SPIN_LOCK_UNLOCKED(efi_mm.cpus_allowed_lock),
+#endif
 };
 
 struct workqueue_struct *efi_rts_wq;
-- 
2.49.0.1101.gccaa498523-goog