Add a config option to exclude DebugFS support in the CCP driver. Signed-off-by: Gary R Hook <gary.hook@xxxxxxx> --- drivers/crypto/ccp/Kconfig | 9 +++++++++ drivers/crypto/ccp/Makefile | 4 ++-- drivers/crypto/ccp/ccp-dev-v5.c | 4 ++++ 3 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig index b9dfae47aefd..6fcedd7b0d42 100644 --- a/drivers/crypto/ccp/Kconfig +++ b/drivers/crypto/ccp/Kconfig @@ -44,3 +44,12 @@ 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, descriptor queue contents, and module parameter values set + at load time. 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 c9bfd4f439ce..a5bd11831b80 100644 --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -973,8 +973,10 @@ 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; @@ -1012,11 +1014,13 @@ 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);
