The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: db099bafbf5e9c421a3a11cf33965c7b0afb3f89 Gitweb: https://git.kernel.org/tip/db099bafbf5e9c421a3a11cf33965c7b0afb3f89 Author: Borislav Petkov bp@suse.de AuthorDate: Wed, 02 Jun 2021 12:07:52 +02:00 Committer: Borislav Petkov bp@suse.de CommitterDate: Wed, 02 Jun 2021 12:29:00 +02:00
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: 8e50d392652f ("dmaengine: idxd: Add shared workqueue support") Signed-off-by: Borislav Petkov bp@suse.de Reviewed-by: Thomas Gleixner tglx@linutronix.de Cc: stable@vger.kernel.org --- drivers/dma/idxd/init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 2a926be..776fd44 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -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;