diff mbox series

[5.12,131/161] dmaengine: idxd: Use cpu_feature_enabled()

Message ID 20210608175949.877758419@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH June 8, 2021, 6:27 p.m. UTC 
From: Borislav Petkov <bp@suse.de>

commit 74b2fc882d380d8fafc2a26f01d401c2a7beeadb upstream.

When testing x86 feature bits, use cpu_feature_enabled() so that
build-disabled features can remain off, regardless of what CPUID says.

Fixes: 8e50d392652f ("dmaengine: idxd: Add shared workqueue support")
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-By: Vinod Koul <vkoul@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/idxd/init.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -675,12 +675,12 @@  static int __init idxd_init_module(void)
 	 * If the CPU does not support MOVDIR64B or ENQCMDS, there's no point in
 	 * enumerating the device. We can not utilize it.
 	 */
-	if (!boot_cpu_has(X86_FEATURE_MOVDIR64B)) {
+	if (!cpu_feature_enabled(X86_FEATURE_MOVDIR64B)) {
 		pr_warn("idxd driver failed to load without MOVDIR64B.\n");
 		return -ENODEV;
 	}
 
-	if (!boot_cpu_has(X86_FEATURE_ENQCMD))
+	if (!cpu_feature_enabled(X86_FEATURE_ENQCMD))
 		pr_warn("Platform does not have ENQCMD(S) support.\n");
 	else
 		support_enqcmd = true;