Commit 74b2fc88 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

dmaengine: idxd: Use cpu_feature_enabled() 



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

Fixes: 8e50d392 ("dmaengine: idxd: Add shared workqueue support")
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-By: default avatarVinod Koul <vkoul@kernel.org>
Cc: <stable@vger.kernel.org>
parent 9a90ed06

drivers/dma/idxd/init.c

+2 −2
Original line number Diff line number Diff line
@@ -745,12 +745,12 @@ 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;