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From:   ira.weiny@intel.com
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Ira Weiny <ira.weiny@intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
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Subject: [PATCH 15/17] drivers/staging: Use memcpy_to/from_page()
Date:   Mon, 23 Nov 2020 22:07:53 -0800
Message-Id: <20201124060755.1405602-16-ira.weiny@intel.com>
In-Reply-To: <20201124060755.1405602-1-ira.weiny@intel.com>
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From: Ira Weiny <ira.weiny@intel.com>

Remove kmap/mem*()/kunmap pattern and use memcpy_to/from_page()

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
 drivers/staging/rts5208/rtsx_transport.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
index 909a3e663ef6..e0e52bae953e 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c
@@ -92,13 +92,13 @@ unsigned int rtsx_stor_access_xfer_buf(unsigned char *buffer,
 			while (sglen > 0) {
 				unsigned int plen = min(sglen, (unsigned int)
 						PAGE_SIZE - poff);
-				unsigned char *ptr = kmap(page);
 
 				if (dir == TO_XFER_BUF)
-					memcpy(ptr + poff, buffer + cnt, plen);
+					memcpy_to_page(page, poff,
+						       buffer + cnt, plen);
 				else
-					memcpy(buffer + cnt, ptr + poff, plen);
-				kunmap(page);
+					memcpy_from_page(buffer + cnt, page,
+							 poff, plen);
 
 				/* Start at the beginning of the next page */
 				poff = 0;
-- 
2.28.0.rc0.12.gb6a658bd00c9