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[tpmdd-devel,2/3] tpm, tpm_crb: remove wmb()'s

Message ID 1465340522-1112-3-git-send-email-jarkko.sakkinen@linux.intel.com
State New
Headers show

Commit Message

Jarkko Sakkinen June 7, 2016, 11:02 p.m. UTC 
wmb()'s are not needed as iowrite32() is used.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
 drivers/char/tpm/tpm_crb.c | 3 ---
 1 file changed, 3 deletions(-)
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Patch

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");
 }