diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0248-tpm-Make-SECURITYFS-a-weak-dependency.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0248-tpm-Make-SECURITYFS-a-weak-dependency.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0248-tpm-Make-SECURITYFS-a-weak-dependency.patch b/target/linux/bcm27xx/patches-4.19/950-0248-tpm-Make-SECURITYFS-a-weak-dependency.patch new file mode 100644 index 0000000000..7e86b09840 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0248-tpm-Make-SECURITYFS-a-weak-dependency.patch @@ -0,0 +1,35 @@ +From 38e82adecd1b7ae790a827c29e954d35a2bbee98 Mon Sep 17 00:00:00 2001 +From: Peter Huewe <peterhuewe@gmx.de> +Date: Mon, 3 Sep 2018 21:51:51 +0200 +Subject: [PATCH] tpm: Make SECURITYFS a weak dependency + +commit 2f7d8dbb11287cbe9da6380ca14ed5d38c9ed91f upstream. + +While having SECURITYFS enabled for the tpm subsystem is beneficial in +most cases, it is not strictly necessary to have it enabled at all. +Especially on platforms without any boot firmware integration of the TPM +(e.g. raspberry pi) it does not add any value for the tpm subsystem, +as there is no eventlog present. + +By turning it from 'select' to 'imply' it still gets selected per +default, but enables users who want to save some kb of ram by turning +SECURITYFS off. + +Signed-off-by: Peter Huewe <peterhuewe@gmx.de> +Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> +Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> +--- + drivers/char/tpm/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/char/tpm/Kconfig ++++ b/drivers/char/tpm/Kconfig +@@ -5,7 +5,7 @@ + menuconfig TCG_TPM + tristate "TPM Hardware Support" + depends on HAS_IOMEM +- select SECURITYFS ++ imply SECURITYFS + select CRYPTO + select CRYPTO_HASH_INFO + ---help--- |