[xen staging] x86/mwait-idle: Remove unused driver version constant

[patchbot@xxxxxxx]

commit 6c9344ee3d48b8bb7758c72d9e4eeb8841b8f7ec
Author:     Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
AuthorDate: Tue May 5 08:25:56 2026 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue May 5 08:25:56 2026 +0200

    x86/mwait-idle: Remove unused driver version constant
    
    The MWAIT_IDLE_VERSION constant has not been updated since 2016 and serves
    no useful purpose. The driver version is implicitly defined by the
    hypervisor version, making this constant redundant.
    
    Remove the constant to eliminate potential confusion about version
    tracking.
    
    Signed-off-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
    Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>
    Link: https://patch.msgid.link/20251215111229.132705-1-dedekind1@xxxxxxxxx
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
    Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
25ff69011ddf
    
    Adjust description to fit our code base.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/arch/x86/cpu/mwait-idle.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/xen/arch/x86/cpu/mwait-idle.c b/xen/arch/x86/cpu/mwait-idle.c
index 6776eeb9ac..48b7a1e721 100644
--- a/xen/arch/x86/cpu/mwait-idle.c
+++ b/xen/arch/x86/cpu/mwait-idle.c
@@ -58,7 +58,6 @@
 
 #include <acpi/cpufreq/cpufreq.h>
 
-#define MWAIT_IDLE_VERSION "0.4.1"
 #undef PREFIX
 #define PREFIX "mwait-idle: "
 
@@ -1636,9 +1635,6 @@ static int __init mwait_idle_probe(void)
        if (boot_cpu_has(X86_FEATURE_XEN_ARAT))
                lapic_timer_reliable_states = LAPIC_TIMER_ALWAYS_RELIABLE;
 
-       pr_debug(PREFIX "v" MWAIT_IDLE_VERSION " model %#x\n",
-                boot_cpu_data.model);
-
        pr_debug(PREFIX "lapic_timer_reliable_states %#x\n",
                 lapic_timer_reliable_states);
 
--
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