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| author |   Hook, Gary <Gary.Hook@amd.com> | 2019-07-09 15:07:15 +0000 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2019-07-26 22:08:03 +1000 |
| commit | 93308baf075039dccf347391491773f272cc24f6 (patch) | |
| tree | 83226deeda7724a9ae8db464c3d17a2d992b5cd8 | |
| parent | crypto: user - make NETLINK_CRYPTO work inside netns (diff) | |
| download | linux-dev-93308baf075039dccf347391491773f272cc24f6.tar.xz linux-dev-93308baf075039dccf347391491773f272cc24f6.zip | |
crypto: ccp - Make CCP debugfs support optional
Add a config option to exclude DebugFS support in the CCP driver.
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/ccp/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/crypto/ccp/Makefile | 4 | ||||
| -rw-r--r-- | drivers/crypto/ccp/ccp-dev-v5.c | 4 |
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig index ce1c47286fc6..8fec733f567f 100644 --- a/drivers/crypto/ccp/Kconfig +++ b/drivers/crypto/ccp/Kconfig @@ -46,3 +46,11 @@ config CRYPTO_DEV_SP_PSP management commands in Secure Encrypted Virtualization (SEV) mode, along with software-based Trusted Execution Environment (TEE) to enable third-party trusted applications. + +config CRYPTO_DEV_CCP_DEBUGFS + bool "Enable CCP Internals in DebugFS" + default n + depends on CRYPTO_DEV_SP_CCP + help + Expose CCP device information such as operation statistics, feature + information, and descriptor queue contents. diff --git a/drivers/crypto/ccp/Makefile b/drivers/crypto/ccp/Makefile index 51d1c0cf66c7..6b86f1e6d634 100644 --- a/drivers/crypto/ccp/Makefile +++ b/drivers/crypto/ccp/Makefile @@ -5,8 +5,8 @@ ccp-$(CONFIG_CRYPTO_DEV_SP_CCP) += ccp-dev.o \ ccp-ops.o \ ccp-dev-v3.o \ ccp-dev-v5.o \ - ccp-dmaengine.o \ - ccp-debugfs.o + ccp-dmaengine.o +ccp-$(CONFIG_CRYPTO_DEV_CCP_DEBUGFS) += ccp-debugfs.o ccp-$(CONFIG_PCI) += sp-pci.o ccp-$(CONFIG_CRYPTO_DEV_SP_PSP) += psp-dev.o diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c index 217e41bbadaf..35b3d866726d 100644 --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -970,8 +970,10 @@ static int ccp5_init(struct ccp_device *ccp) if (ret) goto e_hwrng; +#ifdef CONFIG_CRYPTO_DEV_CCP_DEBUGFS /* Set up debugfs entries */ ccp5_debugfs_setup(ccp); +#endif return 0; @@ -1009,11 +1011,13 @@ static void ccp5_destroy(struct ccp_device *ccp) /* Remove this device from the list of available units first */ ccp_del_device(ccp); +#ifdef CONFIG_CRYPTO_DEV_CCP_DEBUGFS /* We're in the process of tearing down the entire driver; * when all the devices are gone clean up debugfs */ if (ccp_present()) ccp5_debugfs_destroy(); +#endif /* Disable and clear interrupts */ ccp5_disable_queue_interrupts(ccp); |