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 2/4] tpm_crb: remove wmb()'s
Date: Fri, 2 Sep 2016 22:34:18 +0300 [thread overview]
Message-ID: <1472844861-24599-3-git-send-email-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <1472844861-24599-1-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 1801f38..358c475 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
------------------------------------------------------------------------------
next prev parent reply other threads:[~2016-09-02 19:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-02 19:34 [PATCH 0/4] Small fixes and cleanups for tpm_crb Jarkko Sakkinen
[not found] ` <1472844861-24599-1-git-send-email-jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2016-09-02 19:34 ` [PATCH 1/4] tpm_crb: fix crb_req_canceled behavior Jarkko Sakkinen
2016-09-02 19:34 ` Jarkko Sakkinen [this message]
2016-09-02 19:34 ` [PATCH 3/4] tpm_crb: refine the naming of constants Jarkko Sakkinen
2016-09-02 19:34 ` [PATCH 4/4] tpm_crb: fix incorrect values of cmdReady and goIdle bits Jarkko Sakkinen
2016-09-02 19:41 ` Jarkko Sakkinen
2016-09-03 6:27 ` [PATCH 0/4] Small fixes and cleanups for tpm_crb Jarkko Sakkinen
2016-09-03 6:41 ` Jarkko Sakkinen
2016-09-08 10:27 ` Jarkko Sakkinen
[not found] ` <20160908102759.GA4712-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-09-08 11:35 ` Jarkko Sakkinen
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