iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

crypto: ccp - Make CCP debugfs support optional

Browse Source 
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>
This commit is contained in:
Hook, Gary 2019-07-09 15:07:15 +00:00 committed by Herbert Xu
parent 91b05a7e7d
commit 93308baf07
3 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/crypto/ccp/Kconfig
View File

@ -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.

4
drivers/crypto/ccp/Makefile
View File

@ -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

4
drivers/crypto/ccp/ccp-dev-v5.c
View File

@ -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);