Hi Nicolai, thanks for all your comments. > Hi Petr, > Petr Vorel <pvorel@xxxxxxx> writes: > > and remove CRYPTO_DEV_VMX, which looked redundant when only > > CRYPTO_DEV_VMX_ENCRYPT used it. Also it forces CRYPTO_GHASH to be > > builtin even CRYPTO_DEV_VMX_ENCRYPT was configured as module. > I'm confused by the description. CRYPTO_DEV_VMX_ENCRYPT has been a > tristate since ever? And thus, with CRYPTO_DEV_VMX_ENCRYPT=m, > CRYPTO_GHASH=m would be possible as far as vmx is concerned? I'm sorry, the description is wrong. I'm not kconfig expert and I verify it again, but I run into it when testing this with defconfig: $ make defconfig && scripts/config --enable CONFIG_KVM_GUEST --disable CRYPTO_MANAGER_DISABLE_TESTS --enable CONFIG_MODULE_SIG It somehow inherits CRYPTO_DEV_VMX=y. But I'll verify it again. > What this patch really does is to merge CRYPTO_DEV_VMX into > CRYPTO_DEV_VMX_ENCRYPT AFAICS. +1 This is a proper description. > These two seem indeed redundant to me, but for consistency with the > other crypto drivers (e.g. bcm, ccree, ...), I'd rather keep > CRYPTO_DEV_VMX and merge CRYPTO_DEV_VMX_ENCRYPT into it. I'm not sure myself, because some other modules also have Kconfig. $ ls -1 drivers/crypto/*/Kconfig drivers/crypto/allwinner/Kconfig drivers/crypto/amlogic/Kconfig drivers/crypto/caam/Kconfig drivers/crypto/ccp/Kconfig drivers/crypto/hisilicon/Kconfig drivers/crypto/chelsio/Kconfig drivers/crypto/keembay/Kconfig drivers/crypto/marvell/Kconfig drivers/crypto/nx/Kconfig drivers/crypto/qat/Kconfig drivers/crypto/stm32/Kconfig drivers/crypto/ux500/Kconfig drivers/crypto/virtio/Kconfig drivers/crypto/vmx/Kconfig Sure, some of them have many config options in Kconfig, but at least drivers/crypto/chelsio/Kconfig and drivers/crypto/virtio/Kconfig configure just the module. Given it's just these two, I should probably merge CRYPTO_DEV_VMX_ENCRYPT into CRYPTO_DEV_VMX as you suggest (also defconfig changes would not be needed). @Herbert, Nayna, Paulo, Breno: any preference of these. > > Update powerpc defconfigs and description in MAINTAINERS. > The change to MAINTAINERS is completely unrelated? If anything, it had > to come with a separate patch then. You're right, I was hesitating myself. > > Signed-off-by: Petr Vorel <pvorel@xxxxxxx> > > --- > > new in v2 > > This might be a bit aggressive, but IMHO CRYPTO_DEV_VMX only complicated > > things for nothing. > I agree on the redundancy, but as said, CRYPTO_DEV_VMX_ENCRYPT should > probably the one to get dropped in favor of CRYPTO_DEV_VMX. > > But if you do *not* agree with removing it, I just add > > select to drivers/crypto/vmx/Kconfig (which forces dependencies to be > > always modules.) > > If it's ok for you to remove, please also check whether the description > > is ok. get_maintainer.pl script has size limitation: > > $ ./scripts/get_maintainer.pl drivers/crypto/vmx/Kconfig > > ... > > linux-crypto@xxxxxxxxxxxxxxx (open list:IBM Power VMX Cryptographic Acceleration Instru...) > > maybe the name should be shorter. > > Kind regards, > > Petr > > MAINTAINERS | 2 +- > > arch/powerpc/configs/powernv_defconfig | 2 +- > > arch/powerpc/configs/ppc64_defconfig | 2 +- > > arch/powerpc/configs/pseries_defconfig | 2 +- > > drivers/crypto/Kconfig | 6 ------ > > drivers/crypto/vmx/Kconfig | 4 ++-- > > 6 files changed, 6 insertions(+), 12 deletions(-) > If you were to drop CONFIG_CRYPTO_DEV_VMX (like it's implemented in this > patch), then something had to be done about > obj-$(CONFIG_CRYPTO_DEV_VMX) += vmx/ > in drivers/crypto/Makefile as well. +1 (I obviously forget to amend). Kind regards, Petr ... > > +++ b/drivers/crypto/Kconfig > > @@ -761,12 +761,6 @@ config CRYPTO_DEV_QCOM_RNG > > To compile this driver as a module, choose M here. The > > module will be called qcom-rng. If unsure, say N. > > -config CRYPTO_DEV_VMX > > - bool "Support for VMX cryptographic acceleration instructions" > > - depends on PPC64 && VSX > > - help > > - Support for VMX cryptographic acceleration instructions. > > - > As said, I'd keep this one (while moving the GHASH dependency here) ... > > source "drivers/crypto/vmx/Kconfig" > ... and drop this one. > Thanks, > Nicolai
