From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 23 Aug 2005 17:09:53 +0000 (-0700)
Subject: [RPC]: Kill bogus kmap in krb5
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c3a20692ca5c8eb8cf5d0f489d4fc839ce7593d1;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[RPC]: Kill bogus kmap in krb5

While I was going through the crypto users recently, I noticed this
bogus kmap in sunrpc.  It's totally unnecessary since the crypto
layer will do its own kmap before touching the data.  Besides, the
kmap is throwing the return value away.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index 24c21f2a33a7..5a7265aeaf83 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -185,9 +185,7 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
 			sg->page = body->pages[i];
 			sg->offset = offset;
 			sg->length = thislen;
-			kmap(sg->page); /* XXX kmap_atomic? */
 			crypto_digest_update(tfm, sg, 1);
-			kunmap(sg->page);
 			len -= thislen;
 			i++;
 			offset = 0;