crypto: ccp - set max RSA modulus size for v3 platform devices as well
authorArd Biesheuvel <ardb@kernel.org>
Wed, 27 Nov 2019 12:01:36 +0000 (13:01 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Feb 2020 12:34:05 +0000 (04:34 -0800)
commitf28e641be5c217b9c9fb61477f96992975644528
treec96ddf49491b99308603f04d54714d1e6fcaef61
parenta1e311beba942c7c2a1d76311f0fc25b17739767
crypto: ccp - set max RSA modulus size for v3 platform devices as well

commit 11548f5a5747813ff84bed6f2ea01100053b0d8d upstream.

AMD Seattle incorporates a non-PCI version of the v3 CCP crypto
accelerator, and this version was left behind when the maximum
RSA modulus size was parameterized in order to support v5 hardware
which supports larger moduli than v3 hardware does. Due to this
oversight, RSA acceleration no longer works at all on these systems.

Fix this by setting the .rsamax property to the appropriate value
for v3 platform hardware.

Fixes: e28c190db66830c0 ("csrypto: ccp - Expand RSA support for a v5 ccp")
Cc: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/crypto/ccp/ccp-dev-v3.c