kernel/linux.git/drivers/crypto/omap-crypto.c, branch v7.1

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

crypto: omap - Allocate OMAP_CRYPTO_FORCE_COPY scatterlists correctly

2026-02-10T16:43:21+00:00

The existing allocation of scatterlists in omap_crypto_copy_sg_lists() was allocating an array of scatterlist pointers, not scatterlist objects, resulting in a 4x too small allocation. Use sizeof(*new_sg) to get the correct object size. Fixes: 74ed87e7e7f7 ("crypto: omap - add base support library for common routines") Signed-off-by: Kees Cook Acked-by: Herbert Xu Signed-off-by: Linus Torvalds

crypto: omap - Avoid redundant copy when using truncated sg list

2021-08-21T07:44:53+00:00

omap_crypto_cleanup() currently copies data from sg to orig if either copy flag is set. However OMAP_CRYPTO_SG_COPIED means that sg refers to the same pages as orig, truncated to len bytes. There is no need to copy in this case. Only copy data if the OMAP_CRYPTO_DATA_COPIED flag is set. Fixes: 74ed87e7e7f7 ("crypto: omap - add base support library for common ...") Signed-off-by: Ben Hutchings Signed-off-by: Herbert Xu

crypto: omap - Drop obsolete PageSlab check

2021-06-28T03:28:08+00:00

As it is now legal to call flush_dcache_page on slab pages we no longer need to do the check in the omap driver. This patch also uses flush_dcache_page instead of flush_kernel_dcache_page because the page we're writing to could be anything. Reported-by: Ira Weiny Signed-off-by: Herbert Xu

crypto: omap-crypto - fix userspace copied buffer access

2020-06-04T12:03:40+00:00

In case buffers are copied from userspace, directly accessing the page will most likely fail because it hasn't been mapped into the kernel memory space. Fix the issue by forcing a kmap / kunmap within the cleanup functionality. Signed-off-by: Tero Kristo Signed-off-by: Herbert Xu

crypto: omap-crypto - copy the temporary data to output buffer properly

2019-12-11T08:37:00+00:00

Both source and destination are scatterlists that can contain multiple entries under the omap crypto cleanup handling. Current code only copies data from the first source scatterlist entry to the target scatterlist, potentially omitting any sg entries following the first one. Instead, implement a new routine that walks through both source and target and copies the data over once it goes. Signed-off-by: Tero Kristo Signed-off-by: Herbert Xu

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 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 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

crypto: omap-crypto - Verify page zone scatterlists before starting DMA

2018-03-09T14:45:36+00:00

In certain platforms like DRA7xx having memory > 2GB with LPAE enabled has a constraint that DMA can be done with the initial 2GB and marks it as ZONE_DMA. But openssl when used with cryptodev does not make sure that input buffer is DMA capable. So, adding a check to verify if the input buffer is capable of DMA. Signed-off-by: Tero Kristo Signed-off-by: Herbert Xu

crypto: omap - add base support library for common routines

2017-06-10T04:04:15+00:00

This contains the generic APIs for aligning SG buffers. Signed-off-by: Tero Kristo Signed-off-by: Herbert Xu