linux-kernel - [PATCH V0] x86/hyperv: Fix compiler warnings in hv

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20260121024045.3834787-1-mrathor@linux.microsoft.com>
Date: Tue, 20 Jan 2026 18:40:45 -0800
From: Mukesh R <mrathor@...ux.microsoft.com>
To: linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: wei.liu@...nel.org
Subject: [PATCH V0] x86/hyperv: Fix compiler warnings in hv_crash.c

Fix two compiler warnings:
  o smp_ops is only defined if CONFIG_SMP
  o status is set but not explicitly used.

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202512301641.FC6OAbGM-lkp@intel.com/
Signed-off-by: Mukesh R <mrathor@...ux.microsoft.com>
---
 arch/x86/hyperv/hv_crash.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/hyperv/hv_crash.c b/arch/x86/hyperv/hv_crash.c
index c0e22921ace1..82915b22ceae 100644
--- a/arch/x86/hyperv/hv_crash.c
+++ b/arch/x86/hyperv/hv_crash.c
@@ -279,7 +279,6 @@ static void hv_notify_prepare_hyp(void)
 static noinline __noclone void crash_nmi_callback(struct pt_regs *regs)
 {
 	struct hv_input_disable_hyp_ex *input;
-	u64 status;
 	int msecs = 1000, ccpu = smp_processor_id();
 
 	if (ccpu == 0) {
@@ -313,7 +312,7 @@ static noinline __noclone void crash_nmi_callback(struct pt_regs *regs)
 	input->rip = trampoline_pa;
 	input->arg = devirt_arg;
 
-	status = hv_do_hypercall(HVCALL_DISABLE_HYP_EX, input, NULL);
+	hv_do_hypercall(HVCALL_DISABLE_HYP_EX, input, NULL);
 
 	hv_panic_timeout_reboot();
 }
@@ -628,8 +627,9 @@ void hv_root_crash_init(void)
 	if (rc)
 		goto err_out;
 
+#ifdef CONFIG_SMP
 	smp_ops.crash_stop_other_cpus = hv_crash_stop_other_cpus;
-
+#endif
 	crash_kexec_post_notifiers = true;
 	hv_crash_enabled = true;
 	pr_info("Hyper-V: both linux and hypervisor kdump support enabled\n");
-- 
2.51.2.vfs.0.1