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If devm_add_action() fails we are explicitly calling the cleanup to free
the resources allocated. Lets use the helper devm_add_action_or_reset()
and return directly in case of error, as we know that the cleanup function
has been already called by the helper if there was any error.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add md5 sha1 sha256 support for crypto engine in rk3288.
Signed-off-by: Zain Wang <zain.wang@rock-chips.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Lockdep warns about a possible deadlock resulting from the use of regular
spin_locks:
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[ INFO: inconsistent lock state ]
4.4.0-rc2+ #2724 Not tainted
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inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/0/3 [HC0[0]:SC1[1]:HE1:SE0] takes:
(&(&crypto_info->lock)->rlock){+.?...}, at: [<bf14a65c>] rk_crypto_tasklet_cb+0x24/0xb4 [rk_crypto]
{SOFTIRQ-ON-W} state was registered at:
[<c007f4ac>] lock_acquire+0x178/0x218
[<c0759bac>] _raw_spin_lock+0x54/0x64
[<bf14af88>] rk_handle_req+0x7c/0xbc [rk_crypto]
[<bf14b040>] rk_des_ecb_encrypt+0x2c/0x30 [rk_crypto]
[<bf14b05c>] rk_aes_ecb_encrypt+0x18/0x1c [rk_crypto]
[<c028c820>] skcipher_encrypt_ablkcipher+0x64/0x68
[<c0290770>] __test_skcipher+0x2a8/0x8dc
[<c0292e94>] test_skcipher+0x38/0xc4
[<c0292fb0>] alg_test_skcipher+0x90/0xb0
[<c0292158>] alg_test+0x1e8/0x280
[<c028f6f4>] cryptomgr_test+0x34/0x54
[<c004bbe8>] kthread+0xf4/0x10c
[<c0010010>] ret_from_fork+0x14/0x24
irq event stamp: 10672
hardirqs last enabled at (10672): [<c002fac8>] tasklet_action+0x48/0x104
hardirqs last disabled at (10671): [<c002faa0>] tasklet_action+0x20/0x104
softirqs last enabled at (10658): [<c002ef84>] __do_softirq+0x358/0x49c
softirqs last disabled at (10669): [<c002f108>] run_ksoftirqd+0x40/0x80
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&crypto_info->lock)->rlock);
<Interrupt>
lock(&(&crypto_info->lock)->rlock);
*** DEADLOCK ***
Fix this by moving to irq-disabling spinlocks.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Crypto driver support:
ecb(aes) cbc(aes) ecb(des) cbc(des) ecb(des3_ede) cbc(des3_ede)
You can alloc tags above in your case.
And other algorithms and platforms will be added later on.
Signed-off-by: Zain Wang <zain.wang@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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