crypto: tcrypt - fix buflen reminder calculation
- This fixes the intent of the code to limit the last scatterlist to either a full PAGE or a fraction of it, depending on the number of pages needed by buflen and the available space advertised by XBUFLEN. The original code always sets the last scatterlist to a fraction of a PAGE because the first 'if' is never executed. - Rearrange the second part of the code to remove the conditional from the loop Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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db71f29a1c
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c47689931f
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@ -250,19 +250,19 @@ static void sg_init_aead(struct scatterlist *sg, char *xbuf[XBUFSIZE],
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int np = (buflen + PAGE_SIZE - 1)/PAGE_SIZE;
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int k, rem;
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np = (np > XBUFSIZE) ? XBUFSIZE : np;
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rem = buflen % PAGE_SIZE;
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if (np > XBUFSIZE) {
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rem = PAGE_SIZE;
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np = XBUFSIZE;
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} else {
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rem = buflen % PAGE_SIZE;
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}
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sg_init_table(sg, np);
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for (k = 0; k < np; ++k) {
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if (k == (np-1))
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sg_set_buf(&sg[k], xbuf[k], rem);
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else
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sg_set_buf(&sg[k], xbuf[k], PAGE_SIZE);
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}
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np--;
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for (k = 0; k < np; k++)
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sg_set_buf(&sg[k], xbuf[k], PAGE_SIZE);
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sg_set_buf(&sg[k], xbuf[k], rem);
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}
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static void test_aead_speed(const char *algo, int enc, unsigned int secs,
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