From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
kernel test robot <lkp@intel.com>,
Russell King <rmk+kernel@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org, patches@armlinux.org.uk,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH 4.19 18/30] ARM: Spectre-BHB: provide empty stub for non-config
Date: Mon, 14 Mar 2022 12:34:36 +0100 [thread overview]
Message-ID: <20220314112732.302323192@linuxfoundation.org> (raw)
In-Reply-To: <20220314112731.785042288@linuxfoundation.org>
From: Randy Dunlap <rdunlap@infradead.org>
commit 68453767131a5deec1e8f9ac92a9042f929e585d upstream.
When CONFIG_GENERIC_CPU_VULNERABILITIES is not set, references
to spectre_v2_update_state() cause a build error, so provide an
empty stub for that function when the Kconfig option is not set.
Fixes this build error:
arm-linux-gnueabi-ld: arch/arm/mm/proc-v7-bugs.o: in function `cpu_v7_bugs_init':
proc-v7-bugs.c:(.text+0x52): undefined reference to `spectre_v2_update_state'
arm-linux-gnueabi-ld: proc-v7-bugs.c:(.text+0x82): undefined reference to `spectre_v2_update_state'
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/include/asm/spectre.h | 6 ++++++
1 file changed, 6 insertions(+)
--- a/arch/arm/include/asm/spectre.h
+++ b/arch/arm/include/asm/spectre.h
@@ -25,7 +25,13 @@ enum {
SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
};
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
void spectre_v2_update_state(unsigned int state, unsigned int methods);
+#else
+static inline void spectre_v2_update_state(unsigned int state,
+ unsigned int methods)
+{}
+#endif
int spectre_bhb_update_vectors(unsigned int method);
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WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
kernel test robot <lkp@intel.com>,
Russell King <rmk+kernel@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org, patches@armlinux.org.uk,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH 4.19 18/30] ARM: Spectre-BHB: provide empty stub for non-config
Date: Mon, 14 Mar 2022 12:34:36 +0100 [thread overview]
Message-ID: <20220314112732.302323192@linuxfoundation.org> (raw)
In-Reply-To: <20220314112731.785042288@linuxfoundation.org>
From: Randy Dunlap <rdunlap@infradead.org>
commit 68453767131a5deec1e8f9ac92a9042f929e585d upstream.
When CONFIG_GENERIC_CPU_VULNERABILITIES is not set, references
to spectre_v2_update_state() cause a build error, so provide an
empty stub for that function when the Kconfig option is not set.
Fixes this build error:
arm-linux-gnueabi-ld: arch/arm/mm/proc-v7-bugs.o: in function `cpu_v7_bugs_init':
proc-v7-bugs.c:(.text+0x52): undefined reference to `spectre_v2_update_state'
arm-linux-gnueabi-ld: proc-v7-bugs.c:(.text+0x82): undefined reference to `spectre_v2_update_state'
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/include/asm/spectre.h | 6 ++++++
1 file changed, 6 insertions(+)
--- a/arch/arm/include/asm/spectre.h
+++ b/arch/arm/include/asm/spectre.h
@@ -25,7 +25,13 @@ enum {
SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
};
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
void spectre_v2_update_state(unsigned int state, unsigned int methods);
+#else
+static inline void spectre_v2_update_state(unsigned int state,
+ unsigned int methods)
+{}
+#endif
int spectre_bhb_update_vectors(unsigned int method);
next prev parent reply other threads:[~2022-03-14 11:39 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-14 11:34 [PATCH 4.19 00/30] 4.19.235-rc1 review Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 01/30] net: qlogic: check the return value of dma_alloc_coherent() in qed_vf_hw_prepare() Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 02/30] qed: return status of qed_iov_get_link Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 03/30] ethernet: Fix error handling in xemaclite_of_probe Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 04/30] net: ethernet: ti: cpts: Handle error for clk_enable Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 05/30] net: ethernet: lpc_eth: " Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 06/30] ax25: Fix NULL pointer dereference in ax25_kill_by_device Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 07/30] net/mlx5: Fix size field in bufferx_reg struct Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 08/30] NFC: port100: fix use-after-free in port100_send_complete Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 09/30] gpio: ts4900: Do not set DAT and OE together Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 10/30] gianfar: ethtool: Fix refcount leak in gfar_get_ts_info Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 11/30] net: phy: DP83822: clear MISR2 register to disable interrupts Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 12/30] sctp: fix kernel-infoleak for SCTP sockets Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 13/30] net-sysfs: add check for netdevice being present to speed_show Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 14/30] Revert "xen-netback: remove hotplug-status once it has served its purpose" Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 15/30] Revert "xen-netback: Check for hotplug-status existence before watching" Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 16/30] tracing: Ensure trace buffer is at least 4096 bytes large Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 17/30] selftests/memfd: clean up mapping in mfd_fail_write Greg Kroah-Hartman
2022-03-14 11:34 ` Greg Kroah-Hartman [this message]
2022-03-14 11:34 ` [PATCH 4.19 18/30] ARM: Spectre-BHB: provide empty stub for non-config Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 19/30] staging: gdm724x: fix use after free in gdm_lte_rx() Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 20/30] net: macb: Fix lost RX packet wakeup race in NAPI receive Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 21/30] riscv: Fix auipc+jalr relocation range checks Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 22/30] KVM: arm64: Reset PMC_EL0 to avoid a panic() on systems with no PMU Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 23/30] virtio: unexport virtio_finalize_features Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 24/30] virtio: acknowledge all features before access Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 25/30] ARM: fix Thumb2 regression with Spectre BHB Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 26/30] ext4: add check to prevent attempting to resize an fs with sparse_super2 Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 27/30] btrfs: unlock newly allocated extent buffer after error Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 28/30] sched/topology: Make sched_init_numa() use a set for the deduplicating sort Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 29/30] sched/topology: Fix sched_domain_topology_level alloc in sched_init_numa() Greg Kroah-Hartman
2022-03-14 11:34 ` [PATCH 4.19 30/30] ia64: ensure proper NUMA distance and possible map initialization Greg Kroah-Hartman
2022-03-14 13:58 ` [PATCH 4.19 00/30] 4.19.235-rc1 review Jon Hunter
2022-03-14 14:05 ` Greg Kroah-Hartman
2022-03-14 14:14 ` Jon Hunter
2022-03-14 14:57 ` Greg Kroah-Hartman
2022-03-15 12:14 ` James Morse
2022-03-15 12:28 ` Greg Kroah-Hartman
2022-03-14 14:32 ` Naresh Kamboju
2022-03-14 14:32 ` Naresh Kamboju
2022-03-14 15:00 ` Greg Kroah-Hartman
2022-03-14 15:00 ` Greg Kroah-Hartman
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