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| author | Nayna Jain | 2016-11-14 11:00:54 +0100 |
|---|---|---|
| committer | Jarkko Sakkinen | 2016-11-28 00:31:32 +0100 |
| commit | 02ae1382882f08c5804b996ca9c8d79b399dbe36 (patch) | |
| tree | 092dc7aa55337443505ab350a297e801edfc80e8 /drivers/char/tpm/tpm_eventlog.h | |
| parent | tpm: fix the missing .owner in tpm_bios_measurements_ops (diff) | |
| download | kernel-qcow2-linux-02ae1382882f08c5804b996ca9c8d79b399dbe36.tar.gz kernel-qcow2-linux-02ae1382882f08c5804b996ca9c8d79b399dbe36.tar.xz kernel-qcow2-linux-02ae1382882f08c5804b996ca9c8d79b399dbe36.zip | |
tpm: redefine read_log() to handle ACPI/OF at runtime
Currently, read_log() has two implementations: one for ACPI platforms
and the other for device tree(OF) based platforms. The proper one is
selected at compile time using Kconfig and #ifdef in the Makefile,
which is not the recommended approach.
This patch removes the #ifdef in the Makefile by defining a single
read_log() method, which checks for ACPI/OF event log properties at
runtime.
[jarkko.sakkinen@linux.intel.com: added tpm_ prefix to read_log*]
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm_eventlog.h')
| -rw-r--r-- | drivers/char/tpm/tpm_eventlog.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/char/tpm/tpm_eventlog.h b/drivers/char/tpm/tpm_eventlog.h index 6df2f8e79a8e..1660d74ea79a 100644 --- a/drivers/char/tpm/tpm_eventlog.h +++ b/drivers/char/tpm/tpm_eventlog.h @@ -73,20 +73,24 @@ enum tcpa_pc_event_ids { HOST_TABLE_OF_DEVICES, }; -int read_log(struct tpm_chip *chip); - -#if defined(CONFIG_TCG_IBMVTPM) || defined(CONFIG_TCG_IBMVTPM_MODULE) || \ - defined(CONFIG_ACPI) -extern int tpm_bios_log_setup(struct tpm_chip *chip); -extern void tpm_bios_log_teardown(struct tpm_chip *chip); +#if defined(CONFIG_ACPI) +int tpm_read_log_acpi(struct tpm_chip *chip); #else -static inline int tpm_bios_log_setup(struct tpm_chip *chip) +static inline int tpm_read_log_acpi(struct tpm_chip *chip) { - return 0; + return -ENODEV; } -static inline void tpm_bios_log_teardown(struct tpm_chip *chip) +#endif +#if defined(CONFIG_OF) +int tpm_read_log_of(struct tpm_chip *chip); +#else +static inline int tpm_read_log_of(struct tpm_chip *chip) { + return -ENODEV; } #endif +int tpm_bios_log_setup(struct tpm_chip *chip); +void tpm_bios_log_teardown(struct tpm_chip *chip); + #endif |