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path: root/drivers/crypto/cavium/cpt/cptpf_main.c
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2024-11-15crypto: cavium - Fix an error handling path in cpt_ucode_load_fw()Christophe JAILLET
If do_cpt_init() fails, a previous dma_alloc_coherent() call needs to be undone. Add the needed dma_free_coherent() before returning. Fixes: 9e2c7d99941d ("crypto: cavium - Add Support for Octeon-tx CPT Engine") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2024-10-28crypto: cavium - Fix the if condition to exit loop after timeoutEverest K.C
The while loop breaks in the first run because of incorrect if condition. It also causes the statements after the if to appear dead. Fix this by changing the condition from if(timeout--) to if(!timeout--). This bug was reported by Coverity Scan. Report: CID 1600859: (#1 of 1): Logically dead code (DEADCODE) dead_error_line: Execution cannot reach this statement: udelay(30UL); Fixes: 9e2c7d99941d ("crypto: cavium - Add Support for Octeon-tx CPT Engine") Signed-off-by: Everest K.C. <everestkc@everestkc.com.np> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-09-30crypto: cavium - prevent integer overflow loading firmwareDan Carpenter
The "code_length" value comes from the firmware file. If your firmware is untrusted realistically there is probably very little you can do to protect yourself. Still we try to limit the damage as much as possible. Also Smatch marks any data read from the filesystem as untrusted and prints warnings if it not capped correctly. The "ntohl(ucode->code_length) * 2" multiplication can have an integer overflow. Fixes: 9e2c7d99941d ("crypto: cavium - Add Support for Octeon-tx CPT Engine") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-05-28crypto: cavium: Fix a bunch of kernel-doc related issuesLee Jones
Fixes the following W=1 kernel build warning(s): drivers/crypto/cavium/nitrox/nitrox_main.c:41: warning: cannot understand function prototype: 'const struct pci_device_id nitrox_pci_tbl[] = ' drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'ndev' not described in 'write_to_ucd_unit' drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'ucode_size' not described in 'write_to_ucd_unit' drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'ucode_data' not described in 'write_to_ucd_unit' drivers/crypto/cavium/nitrox/nitrox_main.c:73: warning: Function parameter or member 'block_num' not described in 'write_to_ucd_unit' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: Function parameter or member 'index' not described in 'incr_index' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: Function parameter or member 'count' not described in 'incr_index' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: Function parameter or member 'max' not described in 'incr_index' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:46: warning: expecting prototype for Response codes from SE microcode(). Prototype was for incr_index() instead drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:287: warning: Function parameter or member 'cmdq' not described in 'post_se_instr' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:381: warning: Function parameter or member 'callback' not described in 'nitrox_process_se_request' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:381: warning: Function parameter or member 'cb_arg' not described in 'nitrox_process_se_request' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:381: warning: expecting prototype for nitrox_se_request(). Prototype was for nitrox_process_se_request() instead drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:535: warning: Function parameter or member 'cmdq' not described in 'process_response_list' drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:535: warning: expecting prototype for process_request_list(). Prototype was for process_response_list() instead drivers/crypto/cavium/nitrox/nitrox_reqmgr.c:584: warning: Function parameter or member 'data' not described in 'pkt_slc_resp_tasklet' drivers/crypto/cavium/nitrox/nitrox_mbx.c:14: warning: cannot understand function prototype: 'enum mbx_msg_type ' drivers/crypto/cavium/nitrox/nitrox_mbx.c:24: warning: cannot understand function prototype: 'enum mbx_msg_opcode ' drivers/crypto/cavium/nitrox/nitrox_skcipher.c:26: warning: cannot understand function prototype: 'const struct nitrox_cipher flexi_cipher_table[] = ' drivers/crypto/cavium/cpt/cptpf_main.c:411: warning: Function parameter or member 'cpt' not described in 'cpt_unload_microcode' drivers/crypto/cavium/cpt/cptpf_main.c:411: warning: expecting prototype for Ensure all cores are disengaged from all groups by(). Prototype was for cpt_unload_microcode() instead drivers/crypto/cavium/cpt/cptvf_reqmanager.c:17: warning: Function parameter or member 'q' not described in 'get_free_pending_entry' drivers/crypto/cavium/cpt/cptvf_reqmanager.c:17: warning: Function parameter or member 'qlen' not described in 'get_free_pending_entry' Cc: George Cherian <gcherian@marvell.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-crypto@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-13crypto: cavium - remove unused including <linux/version.h>Tian Tao
Remove including <linux/version.h> that don't need it. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-12-04crypto: cpt - Fix sparse warnings in cptpfHerbert Xu
This patch fixes a few sparse warnings that were missed in the last round. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-27crypto: cavium - Use dma_set_mask_and_coherent to simplify codeChristophe JAILLET
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 107 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.615055994@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-08cross-tree: phase out dma_zalloc_coherent()Luis Chamberlain
We already need to zero out memory for dma_alloc_coherent(), as such using dma_zalloc_coherent() is superflous. Phase it out. This change was generated with the following Coccinelle SmPL patch: @ replace_dma_zalloc_coherent @ expression dev, size, data, handle, flags; @@ -dma_zalloc_coherent(dev, size, handle, flags) +dma_alloc_coherent(dev, size, handle, flags) Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> [hch: re-ran the script on the latest tree] Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-03-23crypto: cavium - Replace mdelay with msleep in cpt_device_initJia-Ju Bai
cpt_device_init() is never called in atomic context. The call chain ending up at cpt_device_init() is: [1] cpt_device_init() <- cpt_probe() cpt_probe() is only set as ".probe" in pci_driver structure "cpt_pci_driver". Despite never getting called from atomic context, cpt_device_init() calls mdelay(100), i.e. busy wait for 100ms. That is not necessary and can be replaced with msleep to avoid busy waiting. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-22crypto: cavium - add release_firmware to all return caseCorentin LABBE
Two return case misses to call release_firmware() and so leak some memory. This patch create a fw_release label (and so a common error path) and use it on all return case. Detected by CoverityScan, CID#1416422 ("Resource Leak") Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-23crypto: cavium - switch to pci_alloc_irq_vectorsChristoph Hellwig
pci_enable_msix has been long deprecated, but this driver adds a new instance. Convert it to pci_alloc_irq_vectors and greatly simplify the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-11crypto: cavium - Add Support for Octeon-tx CPT EngineGeorge Cherian
Enable the Physical Function driver for the Cavium Crypto Engine (CPT) found in Octeon-tx series of SoC's. CPT is the Cryptographic Accelaration Unit. CPT includes microcoded GigaCypher symmetric engines (SEs) and asymmetric engines (AEs). Signed-off-by: George Cherian <george.cherian@cavium.com> Reviewed-by: David Daney <david.daney@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>