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| author | Yijie Yang <yijie.yang@oss.qualcomm.com> | 2026-08-11 16:46:47 +0800 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2026-08-15 15:46:52 -0500 |
| commit | e1c13aed4a1641550e8c9518c96f016e1d52d09b (patch) | |
| tree | 61c2297688373db165cc857b7c7adcb147a5c419 /include/crypto/xts.h | |
| download | linux-stable-e1c13aed4a1641550e8c9518c96f016e1d52d09b.tar.gz linux-stable-e1c13aed4a1641550e8c9518c96f016e1d52d09b.zip | |
dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatiblegrafted
Add the Qualcomm Maili SoC compatible string for the CPU bandwidth
monitor (BWMONv4). This falls back to the sdm845-bwmon compatible,
consistent with the existing pattern used by other recent SoCs such as
sm8750 and kaanapali.
Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Diffstat (limited to 'include/crypto/xts.h')
| -rw-r--r-- | include/crypto/xts.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/crypto/xts.h b/include/crypto/xts.h new file mode 100644 index 000000000..15b16c485 --- /dev/null +++ b/include/crypto/xts.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _CRYPTO_XTS_H +#define _CRYPTO_XTS_H + +#include <crypto/b128ops.h> +#include <crypto/internal/skcipher.h> +#include <linux/fips.h> + +#define XTS_BLOCK_SIZE 16 + +static inline int xts_verify_key(struct crypto_skcipher *tfm, + const u8 *key, unsigned int keylen) +{ + /* + * key consists of keys of equal size concatenated, therefore + * the length must be even. + */ + if (keylen % 2) + return -EINVAL; + + /* + * In FIPS mode only a combined key length of either 256 or + * 512 bits is allowed, c.f. FIPS 140-3 IG C.I. + */ + if (fips_enabled && keylen != 32 && keylen != 64) + return -EINVAL; + + /* + * Ensure that the AES and tweak key are not identical when + * in FIPS mode or the FORBID_WEAK_KEYS flag is set. + */ + if ((fips_enabled || (crypto_skcipher_get_flags(tfm) & + CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) && + !crypto_memneq(key, key + (keylen / 2), keylen / 2)) + return -EINVAL; + + return 0; +} + +#endif /* _CRYPTO_XTS_H */ |