BMC/Intel-BMC/linux.git/drivers/misc, branch dev-5.8

Merge tag 'v5.8.5' into dev-5.8

2020-08-31T00:46:57+00:00

This is the 5.8.5 stable release Signed-off-by: Joel Stanley

lkdtm: Make arch-specific tests always available

2020-08-19T06:26:29+00:00

[ Upstream commit ae56942c14740c2963222efdc36c667ab19555ef ] I'd like arch-specific tests to XFAIL when on a mismatched architecture so that we can more easily compare test coverage across all systems. Lacking kernel configs or CPU features count as a FAIL, not an XFAIL. Additionally fixes a build failure under 32-bit UML. Fixes: b09511c253e5 ("lkdtm: Add a DOUBLE_FAULT crash type on x86") Fixes: cea23efb4de2 ("lkdtm/bugs: Make double-fault test always available") Fixes: 6cb6982f42cb ("lkdtm: arm64: test kernel pointer authentication") Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20200625203704.317097-5-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

lkdtm: Avoid more compiler optimizations for bad writes

2020-08-19T06:26:29+00:00

[ Upstream commit 464e86b4abadfc490f426954b431e2ec6a9d7bd2 ] It seems at least Clang is able to throw away writes it knows are destined for read-only memory, which makes things like the WRITE_RO test fail, as the write gets elided. Instead, force the variable to be volatile, and make similar changes through-out other tests in an effort to avoid needing to repeat fixing these kinds of problems. Also includes pr_err() calls in failure paths so that kernel logs are more clear in the failure case. Reported-by: Prasad Sodagudi Suggested-by: Sami Tolvanen Fixes: 9ae113ce5faf ("lkdtm: add tests for additional page permissions") Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20200625203704.317097-2-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

cxl: Fix kobject memleak

2020-08-19T06:26:29+00:00

[ Upstream commit 85c5cbeba8f4fb28e6b9bfb3e467718385f78f76 ] Currently the error return path from kobject_init_and_add() is not followed by a call to kobject_put() - which means we are leaking the kobject. Fix it by adding a call to kobject_put() in the error path of kobject_init_and_add(). Fixes: b087e6190ddc ("cxl: Export optional AFU configuration record in sysfs") Reported-by: Hulk Robot Signed-off-by: Wang Hai Acked-by: Andrew Donnellan Acked-by: Frederic Barrat Link: https://lore.kernel.org/r/20200602120733.5943-1-wanghai38@huawei.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

eeprom: at25: Split reads into chunks and cap write size

2020-08-13T03:48:43+00:00

Make use of spi_max_transfer_size to avoid requesting transfers that are too large for some spi controllers. OpenBMC-Staging-Count: 1 Signed-off-by: Brad Bishop Signed-off-by: Eddie James Signed-off-by: Joel Stanley

lkdtm/heap: Avoid edge and middle of slabs

2020-08-11T13:48:09+00:00

commit e12145cf1c3a8077e6d9f575711e38dd7d8a3ebc upstream. Har har, after I moved the slab freelist pointer into the middle of the slab, now it looks like the contents are getting poisoned. Adjust the test to avoid the freelist pointer again. Fixes: 3202fa62fb43 ("slub: relocate freelist pointer to middle of object") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20200625203704.317097-3-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman

misc: Add ASPEED KCS driver for MCTP purposes

2020-08-06T00:30:33+00:00

IBM have developed a vendor-defined MCTP binding that utilises LPC IO and FW interfaces to exchange MCTP messages. A KCS device in the IO space is used to send single-byte control messages initialising the MCTP channel and exchanging ownership of data buffers. This driver exposes the KCS message stream to userspace, allowing an MCTP-capable application to manipulate the data exposed via the FW space. OpenBMC-Staging-Count: 3 Signed-off-by: Andrew Jeffery Signed-off-by: Joel Stanley

misc: mbox: add npcm7xx pci mailbox driver

2020-08-06T00:30:29+00:00

Add Nuvoton BMC NPCM7XX PCI Mailbox driver. OpenBMC-Staging-Count: 8 Signed-off-by: Tomer Maimon [v5.0: Fix access_ok for API change] Signed-off-by: Joel Stanley

misc: npcm7xx-lpc-bpc: add NPCM7xx BIOS post code driver

2020-08-06T00:30:29+00:00

Add NPCM7xx BIOS post code (BPC) driver, the BPC monitoring two I/O address written by the host on the LPC. OpenBMC-Staging-Count: 8 Signed-off-by: Tomer Maimon Signed-off-by: Joel Stanley

habanalabs: prevent possible out-of-bounds array access

2020-07-19T05:15:36+00:00

Queue index is received from the user. Therefore, we must validate it before using it to access the queue props array. Signed-off-by: Oded Gabbay Reviewed-by: Tomer Tayar