From 20427e5db3f96fc054c6a6ad95606906b834deb1 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Mon, 3 Dec 2018 20:56:47 +0100
Subject: [PATCH] mmc: document 'Reliable Write' bit in uapi header
If we use it this way, people should know about it. Also, replace
true/false with nonzero/zero because the flag is not strictly a bool
anymore.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
include/uapi/linux/mmc/ioctl.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h
index 45f369dc0a426..00c08120f3ba6 100644
--- a/include/uapi/linux/mmc/ioctl.h
+++ b/include/uapi/linux/mmc/ioctl.h
@@ -5,7 +5,10 @@
#include <linux/types.h>
struct mmc_ioc_cmd {
- /* Implies direction of data. true = write, false = read */
+ /*
+ * Direction of data: nonzero = write, zero = read.
+ * Bit 31 selects 'Reliable Write' for RPMB.
+ */
int write_flag;
/* Application-specific command. true = precede with CMD55 */
--
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