From: Ard Biesheuvel <ardb+git@google•com>
To: linux-efi@vger•kernel.org
Cc: linux-kernel@vger•kernel.org,
linux-arm-kernel@lists•infradead.org,
Ard Biesheuvel <ardb@kernel•org>, Will Deacon <will@kernel•org>,
Mark Rutland <mark.rutland@arm•com>,
Sebastian Andrzej Siewior <bigeasy@linutronix•de>,
Peter Zijlstra <peterz@infradead•org>,
Catalin Marinas <catalin.marinas@arm•com>,
Mark Brown <broonie@kernel•org>,
Pierre Gondois <Pierre.Gondois@arm•com>,
Sami Mujawar <Sami.Mujawar@arm•com>,
stable@vger•kernel.org
Subject: [PATCH v4 resend 1/7] efi: Add missing static initializer for efi_mm::cpus_allowed_lock
Date: Wed, 15 Oct 2025 22:56:36 +0200 [thread overview]
Message-ID: <20251015205634.3820870-10-ardb+git@google.com> (raw)
In-Reply-To: <20251015205634.3820870-9-ardb+git@google.com>
From: Ard Biesheuvel <ardb@kernel•org>
Initialize the cpus_allowed_lock struct member of efi_mm.
Cc: <stable@vger•kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel•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 1ce428e2ac8a..fc407d891348 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -74,6 +74,9 @@ 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;
--
2.51.0.869.ge66316f041-goog
next prev parent reply other threads:[~2025-10-15 21:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-15 20:56 [PATCH v4 resend 0/7] arm64: Make EFI calls preemptible Ard Biesheuvel
2025-10-15 20:56 ` Ard Biesheuvel [this message]
2025-10-15 20:56 ` [PATCH v4 resend 2/7] efi/runtime-wrappers: Keep track of the efi_runtime_lock owner Ard Biesheuvel
2025-10-15 20:56 ` [PATCH v4 resend 3/7] arm64/fpsimd: Don't warn when EFI execution context is preemptible Ard Biesheuvel
2025-11-04 15:52 ` Will Deacon
2025-11-04 16:00 ` Ard Biesheuvel
2025-11-04 16:16 ` Will Deacon
2025-10-15 20:56 ` [PATCH v4 resend 4/7] arm64/fpsimd: Permit kernel mode NEON with IRQs off Ard Biesheuvel
2025-10-15 20:56 ` [PATCH v4 resend 5/7] arm64/efi: Drop efi_rt_lock spinlock from EFI arch wrapper Ard Biesheuvel
2025-10-15 20:56 ` [PATCH v4 resend 6/7] arm64/efi: Move uaccess en/disable out of efi_set_pgd() Ard Biesheuvel
2025-10-15 20:56 ` [PATCH v4 resend 7/7] arm64/efi: Call EFI runtime services without disabling preemption Ard Biesheuvel
2025-11-11 18:45 ` [PATCH v4 resend 0/7] arm64: Make EFI calls preemptible Catalin Marinas
2025-11-11 18:50 ` Ard Biesheuvel
2025-11-11 18:59 ` Catalin Marinas
2025-11-11 20:16 ` Catalin Marinas
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