Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 (c6dc0609) · Commits · 戴 / test

Documentation/devicetree/bindings/rng/omap_rng.txt

+2 −1

Original line number	Diff line number	Diff line
		@@ -12,7 +12,8 @@ Required properties:
		- reg : Offset and length of the register set for the module
		- interrupts : the interrupt number for the RNG module.
		Used for "ti,omap4-rng" and "inside-secure,safexcel-eip76"
		- clocks: the trng clock source
		- clocks: the trng clock source. Only mandatory for the
		"inside-secure,safexcel-eip76" compatible.

		Example:
		/* AM335x */

crypto/lrw.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -286,8 +286,11 @@ static int init_crypt(struct skcipher_request *req, crypto_completion_t done)

		subreq->cryptlen = LRW_BUFFER_SIZE;
		if (req->cryptlen > LRW_BUFFER_SIZE) {
		subreq->cryptlen = min(req->cryptlen, (unsigned)PAGE_SIZE);
		rctx->ext = kmalloc(subreq->cryptlen, gfp);
		unsigned int n = min(req->cryptlen, (unsigned int)PAGE_SIZE);

		rctx->ext = kmalloc(n, gfp);
		if (rctx->ext)
		subreq->cryptlen = n;
		}

		rctx->src = req->src;

crypto/xts.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -230,8 +230,11 @@ static int init_crypt(struct skcipher_request *req, crypto_completion_t done)

		subreq->cryptlen = XTS_BUFFER_SIZE;
		if (req->cryptlen > XTS_BUFFER_SIZE) {
		subreq->cryptlen = min(req->cryptlen, (unsigned)PAGE_SIZE);
		rctx->ext = kmalloc(subreq->cryptlen, gfp);
		unsigned int n = min(req->cryptlen, (unsigned int)PAGE_SIZE);

		rctx->ext = kmalloc(n, gfp);
		if (rctx->ext)
		subreq->cryptlen = n;
		}

		rctx->src = req->src;

drivers/char/hw_random/amd-rng.c

+34 −8

Original line number	Diff line number	Diff line
		@@ -55,6 +55,7 @@ MODULE_DEVICE_TABLE(pci, pci_tbl);
		struct amd768_priv {
		void __iomem *iobase;
		struct pci_dev *pcidev;
		u32 pmbase;
		};

		static int amd_rng_read(struct hwrng rng, void buf, size_t max, bool wait)
		@@ -148,33 +149,58 @@ found:
		if (pmbase == 0)
		return -EIO;

		priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
		priv = kzalloc(sizeof(*priv), GFP_KERNEL);
		if (!priv)
		return -ENOMEM;

		if (!devm_request_region(&pdev->dev, pmbase + PMBASE_OFFSET,
		PMBASE_SIZE, DRV_NAME)) {
		if (!request_region(pmbase + PMBASE_OFFSET, PMBASE_SIZE, DRV_NAME)) {
		dev_err(&pdev->dev, DRV_NAME " region 0x%x already in use!\n",
		pmbase + 0xF0);
		return -EBUSY;
		err = -EBUSY;
		goto out;
		}

		priv->iobase = devm_ioport_map(&pdev->dev, pmbase + PMBASE_OFFSET,
		PMBASE_SIZE);
		priv->iobase = ioport_map(pmbase + PMBASE_OFFSET, PMBASE_SIZE);
		if (!priv->iobase) {
		pr_err(DRV_NAME "Cannot map ioport\n");
		return -ENOMEM;
		err = -EINVAL;
		goto err_iomap;
		}

		amd_rng.priv = (unsigned long)priv;
		priv->pmbase = pmbase;
		priv->pcidev = pdev;

		pr_info(DRV_NAME " detected\n");
		return devm_hwrng_register(&pdev->dev, &amd_rng);
		err = hwrng_register(&amd_rng);
		if (err) {
		pr_err(DRV_NAME " registering failed (%d)\n", err);
		goto err_hwrng;
		}
		return 0;

		err_hwrng:
		ioport_unmap(priv->iobase);
		err_iomap:
		release_region(pmbase + PMBASE_OFFSET, PMBASE_SIZE);
		out:
		kfree(priv);
		return err;
		}

		static void __exit mod_exit(void)
		{
		struct amd768_priv *priv;

		priv = (struct amd768_priv *)amd_rng.priv;

		hwrng_unregister(&amd_rng);

		ioport_unmap(priv->iobase);

		release_region(priv->pmbase + PMBASE_OFFSET, PMBASE_SIZE);

		kfree(priv);
		}

		module_init(mod_init);

drivers/char/hw_random/geode-rng.c

+35 −15

Original line number	Diff line number	Diff line
		@@ -31,6 +31,9 @@
		#include <linux/module.h>
		#include <linux/pci.h>


		#define PFX KBUILD_MODNAME ": "

		#define GEODE_RNG_DATA_REG 0x50
		#define GEODE_RNG_STATUS_REG 0x54

		@@ -82,6 +85,7 @@ static struct hwrng geode_rng = {

		static int __init mod_init(void)
		{
		int err = -ENODEV;
		struct pci_dev *pdev = NULL;
		const struct pci_device_id *ent;
		void __iomem *mem;
		@@ -89,27 +93,43 @@ static int __init mod_init(void)

		for_each_pci_dev(pdev) {
		ent = pci_match_id(pci_tbl, pdev);
		if (ent) {
		if (ent)
		goto found;
		}
		/* Device not found. */
		goto out;

		found:
		rng_base = pci_resource_start(pdev, 0);
		if (rng_base == 0)
		return -ENODEV;

		mem = devm_ioremap(&pdev->dev, rng_base, 0x58);
		goto out;
		err = -ENOMEM;
		mem = ioremap(rng_base, 0x58);
		if (!mem)
		return -ENOMEM;
		goto out;
		geode_rng.priv = (unsigned long)mem;

		pr_info("AMD Geode RNG detected\n");
		return devm_hwrng_register(&pdev->dev, &geode_rng);
		}
		err = hwrng_register(&geode_rng);
		if (err) {
		pr_err(PFX "RNG registering failed (%d)\n",
		err);
		goto err_unmap;
		}
		out:
		return err;

		/* Device not found. */
		return -ENODEV;
		err_unmap:
		iounmap(mem);
		goto out;
		}

		static void __exit mod_exit(void)
		{
		void __iomem mem = (void __iomem )geode_rng.priv;

		hwrng_unregister(&geode_rng);
		iounmap(mem);
		}

		module_init(mod_init);

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