Am Dienstag, 2. Dezember 2014, 23:31:12 schrieb Jarkko Sakkinen: > This patch set enables TPM2 protocol and provides drivers for FIFO and > CRB interfaces. This patch set does not export any sysfs attributes for > TPM 2.0 because existing sysfs attributes have three non-trivial issues: > > - They are associated with the platform device instead of character > device. > - They are are not trivial key-value pairs but contain text that is > not easily parsed by a computer. > - Raciness as described in > > http://kroah.com/log/blog/2013/06/26/how-to-create-a-sysfs-file-correctly/ > > This is too big effort to be included into this patch set and requires > more discussion. > > v2: > - Improved struct tpm_chip life-cycle by taking advantage of devres > API. > - Refined sysfs attributes as simple key-values thereby not repeating > mistakes in TPM1 sysfs attributes. > - Documented functions in tpm-chip.c and tpm2-cmd.c. > - Documented sysfs attributes. > > v3: > - Lots of fixes in calling order in device drivers (thanks to Jason > Gunthorpe for pointing these out!). > - Attach sysfs attributes to the misc device because it represents > TPM device to the user space. > > v4: > - Disable sysfs attibutes for TPM 2.0 for until we can sort out the > best approach for them. > - Fixed all the style issues found with checkpatch.pl. > > v5: > - missing EXPORT_SYMBOL_GPL() > - own class for TPM devices used for TPM 2.0 devices and onwards. > > v6: > - Non-racy initialization for sysfs attributes using struct device's > groups field. > - The class 'tpm' is used now for all TPM devices. For the first device > node major MISC_MAJOR and minor TPM_MINOR is used in order to retain > backwards compatability. > > v7: > - Release device number and free struct tpm_chip memory inside > tpm_dev_release callback. > - Moved code from tpm-interface.c and tpm_dev.c to tpm-chip.c. > > v8: > - Cleaned up unneeded cast from tpm_transmit_cmd(). > - Cleaned up redundant PPI_VERSION_LEN constant from tpm_ppi.c. > - Fixed tpm_tis to use tpm2_calc_ordinal_duration() for TPM2 devices. > - tpm_crb: in crb_recv, check that count can hold the TPM header at > minimum. > - tpm_crb: add enumerations for bit flags in start and cancel fields > of the control area. > - tpm_crb: use ioremap() for command and response buffer because > they might be anywhere. > - tpm_crb: use IO access functions for reading ioremapped buffers > because using direct pointers is not portable. > - tpm_crb: only apply ACPI start if start method reported by the > TPM2 ACPI table allows it. > - In tpm2_pcr_read() just calculate index and bit and get rid of > hacky loop. > - Do not add sysfs attributes for TPM 2.0 devices. > > Jarkko Sakkinen (7): > tpm: merge duplicate transmit_cmd() functions > tpm: two-phase chip management functions > tpm: fix raciness of PPI interface lookup > tpm: rename chip->dev to chip->pdev > tpm: device class for tpm > tpm: TPM 2.0 baseline support > tpm: TPM 2.0 CRB Interface > > Will Arthur (1): > tpm: TPM 2.0 FIFO Interface > > drivers/char/tpm/Kconfig | 9 + > drivers/char/tpm/Makefile | 3 +- > drivers/char/tpm/tpm-chip.c | 251 ++++++++++++++++ > drivers/char/tpm/tpm-dev.c | 42 +-- > drivers/char/tpm/tpm-interface.c | 261 ++++++---------- > drivers/char/tpm/tpm-sysfs.c | 29 +- > drivers/char/tpm/tpm.h | 113 ++++++- > drivers/char/tpm/tpm2-cmd.c | 571 > ++++++++++++++++++++++++++++++++++++ drivers/char/tpm/tpm_atmel.c | > 25 +- > drivers/char/tpm/tpm_crb.c | 356 ++++++++++++++++++++++ > drivers/char/tpm/tpm_i2c_atmel.c | 49 ++-- > drivers/char/tpm/tpm_i2c_infineon.c | 43 +-- > drivers/char/tpm/tpm_i2c_nuvoton.c | 68 ++--- When applying to linux-v3.18-rc6 I get this new coccinelle warning: drivers/char/tpm/tpm_i2c_nuvoton.c:607:1-3: WARNING: end returns can be simpified make -C ../../../linux/ M=$(pwd) coccicheck Peter -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
