crypto: omap-aes - add IV output handling (891dcbbb) · Commits · 戴 / test

Currently omap-aes driver does not copy end result IV out at all. This is evident with the additional checks done at the crypto test manager. Fix by copying out the IV values from HW. Signed-off-by:

Tero Kristo <t-kristo@ti.com> Signed-off-by:

Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/omap-aes.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -479,6 +479,14 @@ static int omap_aes_crypt_req(struct crypto_engine *engine,
		return omap_aes_crypt_dma_start(dd);
		}

		static void omap_aes_copy_ivout(struct omap_aes_dev dd, u8 ivbuf)
		{
		int i;

		for (i = 0; i < 4; i++)
		((u32 *)ivbuf)[i] = omap_aes_read(dd, AES_REG_IV(dd, i));
		}

		static void omap_aes_done_task(unsigned long data)
		{
		struct omap_aes_dev dd = (struct omap_aes_dev )data;
		@@ -500,6 +508,10 @@ static void omap_aes_done_task(unsigned long data)
		omap_crypto_cleanup(&dd->out_sgl, dd->orig_out, 0, dd->total_save,
		FLAGS_OUT_DATA_ST_SHIFT, dd->flags);

		/* Update IV output */
		if (dd->flags & (FLAGS_CBC \| FLAGS_CTR))
		omap_aes_copy_ivout(dd, dd->req->iv);

		omap_aes_finish_req(dd, 0);

		pr_debug("exit\n");

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