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Date: Mon, 19 May 2014 09:51:33 -0700 From: Tadeusz Struk <tadeusz.struk@...el.com> To: herbert@...dor.apana.org.au Cc: tadeusz.struk@...el.com, davem@...emloft.net, linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] crypto: Fix DMA-API warning With DMA-API debug enabled testmgr triggers a "DMA-API: device driver maps memory from stack" warning, when tested on a crypto HW accelerator. Signed-off-by: Tadeusz Struk <tadeusz.struk@...el.com> --- crypto/testmgr.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/crypto/testmgr.c b/crypto/testmgr.c index dc3cf35..75c78e6 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -414,16 +414,18 @@ static int __test_aead(struct crypto_aead *tfm, int enc, void *input; void *output; void *assoc; - char iv[MAX_IVLEN]; + char *iv; char *xbuf[XBUFSIZE]; char *xoutbuf[XBUFSIZE]; char *axbuf[XBUFSIZE]; + iv = kzalloc(MAX_IVLEN, GFP_KERNEL); + if (!iv) + return ret; if (testmgr_alloc_buf(xbuf)) goto out_noxbuf; if (testmgr_alloc_buf(axbuf)) goto out_noaxbuf; - if (diff_dst && testmgr_alloc_buf(xoutbuf)) goto out_nooutbuf; @@ -767,6 +769,7 @@ out_nooutbuf: out_noaxbuf: testmgr_free_buf(xbuf); out_noxbuf: + kfree(iv); return ret; } -- 1.8.5.rc2.6.gc6f1b92.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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