From: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Peter Huewe <peterhuewe-Mmb7MZpHnFY@public.gmane.org>
Cc: open list <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"moderated list:TPM DEVICE DRIVER"
<tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: [PATCH 2/3] tpm, tpm_crb: remove wmb()'s
Date: Wed, 8 Jun 2016 02:02:01 +0300 [thread overview]
Message-ID: <1465340522-1112-3-git-send-email-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <1465340522-1112-1-git-send-email-jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
wmb()'s are not needed as iowrite32() is used.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
drivers/char/tpm/tpm_crb.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index b4d46ae..ca2cad9 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -175,9 +175,6 @@ static void crb_cancel(struct tpm_chip *chip)
iowrite32(cpu_to_le32(CRB_CANCEL_INVOKE), &priv->cca->cancel);
- /* Make sure that cmd is populated before issuing cancel. */
- wmb();
-
if ((priv->flags & CRB_FL_ACPI_START) && crb_do_acpi_start(chip))
dev_err(&chip->dev, "ACPI Start failed\n");
}
--
2.7.4
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next prev parent reply other threads:[~2016-06-07 23:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-07 23:01 [PATCH 0/3] Runtime PM for TPM2 CRB chips Jarkko Sakkinen
2016-06-07 23:02 ` [PATCH 1/3] tpm_crb: fix crb_req_canceled behavior Jarkko Sakkinen
[not found] ` <1465340522-1112-1-git-send-email-jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2016-06-07 23:02 ` Jarkko Sakkinen [this message]
2016-06-07 23:02 ` [PATCH 3/3] tpm, tpm_crb: runtime power management Jarkko Sakkinen
2016-06-14 13:14 ` [tpmdd-devel] " Tomas Winkler
2016-06-16 19:57 ` Jarkko Sakkinen
2016-06-16 20:18 ` Jarkko Sakkinen
[not found] ` <20160616195735.GA30378-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-06-16 20:26 ` Tomas Winkler
[not found] ` <CA+i0qc4+xh0iehkMVp0Bat+z=ckogMH8ThniaAR_21MTZbqsWQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-06-16 20:44 ` Jason Gunthorpe
2016-06-16 21:29 ` Jarkko Sakkinen
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