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crypto: tcrpyt - Remove unnecessary kmap/kunmap calls 

Noticed by Neil Horman: we are doing unnecessary kmap/kunmap calls
on kmalloced memory.  This patch removes them.  For the purposes of
testing SG construction, the underlying crypto code already does plenty
of kmap/kunmap calls anyway.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2008-07-03 14:57:30 +08:00
parent 81bef01500
commit 4b22f0ddb6
1 changed files with 5 additions and 10 deletions
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15
crypto/tcrypt.c
View File

@ -23,7 +23,6 @@
#include <linux/scatterlist.h> #include <linux/scatterlist.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/crypto.h> #include <linux/crypto.h>
#include <linux/highmem.h>
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/jiffies.h> #include <linux/jiffies.h>
#include <linux/timex.h> #include <linux/timex.h>
@ -31,7 +30,7 @@
#include "tcrypt.h" #include "tcrypt.h"
/* /*
* Need to kmalloc() memory for testing kmap(). * Need to kmalloc() memory for testing.
*/ */
#define TVMEMSIZE 16384 #define TVMEMSIZE 16384
#define XBUFSIZE 32768 #define XBUFSIZE 32768
@ -376,13 +375,12 @@ static void test_aead(char *algo, int enc, struct aead_testvec *template,
goto next_one; goto next_one;
} }
q = kmap(sg_page(&sg[0])) + sg[0].offset; q = input;
hexdump(q, template[i].rlen); hexdump(q, template[i].rlen);
printk(KERN_INFO "enc/dec: %s\n", printk(KERN_INFO "enc/dec: %s\n",
memcmp(q, template[i].result, memcmp(q, template[i].result,
template[i].rlen) ? "fail" : "pass"); template[i].rlen) ? "fail" : "pass");
kunmap(sg_page(&sg[0]));
next_one: next_one:
if (!template[i].key) if (!template[i].key)
kfree(key); kfree(key);
@ -482,7 +480,7 @@ next_one:
for (k = 0, temp = 0; k < template[i].np; k++) { for (k = 0, temp = 0; k < template[i].np; k++) {
printk(KERN_INFO "page %u\n", k); printk(KERN_INFO "page %u\n", k);
q = kmap(sg_page(&sg[k])) + sg[k].offset; q = &axbuf[IDX[k]];
hexdump(q, template[i].tap[k]); hexdump(q, template[i].tap[k]);
printk(KERN_INFO "%s\n", printk(KERN_INFO "%s\n",
memcmp(q, template[i].result + temp, memcmp(q, template[i].result + temp,
@ -500,7 +498,6 @@ next_one:
} }
temp += template[i].tap[k]; temp += template[i].tap[k];
kunmap(sg_page(&sg[k]));
} }
} }
} }
@ -609,13 +606,12 @@ static void test_cipher(char *algo, int enc,
goto out; goto out;
} }
q = kmap(sg_page(&sg[0])) + sg[0].offset; q = data;
hexdump(q, template[i].rlen); hexdump(q, template[i].rlen);
printk("%s\n", printk("%s\n",
memcmp(q, template[i].result, memcmp(q, template[i].result,
template[i].rlen) ? "fail" : "pass"); template[i].rlen) ? "fail" : "pass");
kunmap(sg_page(&sg[0]));
} }
kfree(data); kfree(data);
} }
@ -689,7 +685,7 @@ static void test_cipher(char *algo, int enc,
temp = 0; temp = 0;
for (k = 0; k < template[i].np; k++) { for (k = 0; k < template[i].np; k++) {
printk("page %u\n", k); printk("page %u\n", k);
q = kmap(sg_page(&sg[k])) + sg[k].offset; q = &xbuf[IDX[k]];
hexdump(q, template[i].tap[k]); hexdump(q, template[i].tap[k]);
printk("%s\n", printk("%s\n",
memcmp(q, template[i].result + temp, memcmp(q, template[i].result + temp,
@ -704,7 +700,6 @@ static void test_cipher(char *algo, int enc,
hexdump(&q[template[i].tap[k]], n); hexdump(&q[template[i].tap[k]], n);
} }
temp += template[i].tap[k]; temp += template[i].tap[k];
kunmap(sg_page(&sg[k]));
} }
} }
} }