talos-obmc-linux/drivers/char, branch dev-4.13

ipmi: NPCM7xx KCS BMC: enable interrupt to the host

2018-05-18T08:52:10+00:00

Original kcs_bmc_npcm7xx.c was missing enabling to send interrupt to the host on writes to output buffer. This patch fixes it by setting the bits that enables the generation of IRQn events by hardware control based on the status of the OBF flag. OpenBMC-Staging-Count: 1 Signed-off-by: Avi Fishman Signed-off-by: Joel Stanley

ipmi: kcs_bmc: coding-style fixes

2018-05-18T08:52:10+00:00

OpenBMC-Staging-Count: 1 Signed-off-by: Haiyue Wang Signed-off-by: Corey Minyard [This is is not the same commit as upstream, as the changes to use new type '__poll_t' from linux-4.16-rc1 are not included. This was done because the feature is not a small self contained backport. There is no impact on functionality for dev-4.13] Signed-off-by: Joel Stanley

ipmi: add an NPCM7xx KCS BMC driver

2018-05-18T08:34:22+00:00

This driver exposes the Keyboard Controller Style (KCS) interface on Novoton NPCM7xx SoCs as a character device. Such SOCs are commonly used as a BaseBoard Management Controller (BMC) on a server board, and KCS interface is commonly used to perform the in-band IPMI communication between the server and its BMC. OpenBMC-Staging-Count: 1 Signed-off-by: Avi Fishman Signed-off-by: Haiyue Wang Signed-off-by: Corey Minyard Signed-off-by: Joel Stanley

ipmi: add an Aspeed KCS IPMI BMC driver

2018-05-18T08:34:22+00:00

The KCS (Keyboard Controller Style) interface is used to perform in-band IPMI communication between a server host and its BMC (BaseBoard Management Controllers). This driver exposes the KCS interface on ASpeed SOCs (AST2400 and AST2500) as a character device. Such SOCs are commonly used as BMCs and this driver implements the BMC side of the KCS interface. OpenBMC-Staging-Count: 1 Signed-off-by: Haiyue Wang Signed-off-by: Corey Minyard Signed-off-by: Joel Stanley

ipmi: add a KCS IPMI BMC driver

2018-05-18T08:34:22+00:00

Provides a device driver for the KCS (Keyboard Controller Style) IPMI interface which meets the requirement of the BMC (Baseboard Management Controllers) side for handling the IPMI request from host system software. Signed-off-by: Haiyue Wang [Removed the selectability of IPMI_KCS_BMC, as it doesn't do much good to have it by itself.] Signed-off-by: Corey Minyard Signed-off-by: Joel Stanley

Merge tag 'drm-for-v4.14' into dev-4.13

2018-04-19T02:00:20+00:00

This is the DRM tree that was merged into the mainline 4.14 kernel. The ASPEED GFX DRM driver requires functionaliy that was included in this tree, so we merge it back into the 4.13 OpenBMC tree. This should have no impact on other parts of the BMC. Signed-off-by: Joel Stanley

ipmi: fix unsigned long underflow

2017-11-24T07:35:58+00:00

commit 392a17b10ec4320d3c0e96e2a23ebaad1123b989 upstream. When I set the timeout to a specific value such as 500ms, the timeout event will not happen in time due to the overflow in function check_msg_timeout: ... ent->timeout -= timeout_period; if (ent->timeout > 0) return; ... The type of timeout_period is long, but ent->timeout is unsigned long. This patch makes the type consistent. Reported-by: Weilong Chen Signed-off-by: Corey Minyard Tested-by: Weilong Chen Signed-off-by: Greg Kroah-Hartman

tpm-dev-common: Reject too short writes

2017-11-24T07:35:58+00:00

commit ee70bc1e7b63ac8023c9ff9475d8741e397316e7 upstream. tpm_transmit() does not offer an explicit interface to indicate the number of valid bytes in the communication buffer. Instead, it relies on the commandSize field in the TPM header that is encoded within the buffer. Therefore, ensure that a) enough data has been written to the buffer, so that the commandSize field is present and b) the commandSize field does not announce more data than has been written to the buffer. This should have been fixed with CVE-2011-1161 long ago, but apparently a correct version of that patch never made it into the kernel. Signed-off-by: Alexander Steffen Reviewed-by: Jarkko Sakkinen Tested-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen Signed-off-by: Greg Kroah-Hartman

Backmerge tag 'v4.13-rc5' into drm-next

2017-08-15T06:16:58+00:00

Linux 4.13-rc5 There's a really nasty nouveau collision, hopefully someone can take a look once I pushed this out.

random: fix warning message on ia64 and parisc

2017-08-08T16:36:46+00:00

Fix the warning message on the parisc and IA64 architectures to show the correct function name of the caller by using %pS instead of %pF. The message is printed with the value of _RET_IP_ which calls __builtin_return_address(0) and as such returns the IP address caller instead of pointer to a function descriptor of the caller. The effect of this patch is visible on the parisc and ia64 architectures only since those are the ones which use function descriptors while on all others %pS and %pF will behave the same. Cc: Theodore Ts'o Cc: Jason A. Donenfeld Signed-off-by: Helge Deller Fixes: eecabf567422 ("random: suppress spammy warnings about unseeded randomness") Fixes: d06bfd1989fe ("random: warn when kernel uses unseeded randomness") Signed-off-by: Linus Torvalds