kernel/linux.git/drivers/misc, branch linux-5.9.y

habanalabs/gaudi: fix missing code in ECC handling

2020-12-16T09:58:32+00:00

[ Upstream commit 652b44453ea953d3157f02a7f17e18e329952649 ] There is missing statement and missing "break;" in the ECC handling code in gaudi.c This will cause a wrong behavior upon certain ECC interrupts. Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

habanalabs/gaudi: mask WDT error in QMAN

2020-11-24T12:38:52+00:00

[ Upstream commit f83f3a31b2972ddc907fbb286c6446dd9db6e198 ] This interrupt cause is not relevant because of how the user use the QMAN arbitration mechanism. We must mask it as the log explodes with it. Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

mei: protect mei_cl_mtu from null dereference

2020-11-18T18:22:26+00:00

commit bcbc0b2e275f0a797de11a10eff495b4571863fc upstream. A receive callback is queued while the client is still connected but can still be called after the client was disconnected. Upon disconnect cl->me_cl is set to NULL, hence we need to check that ME client is not-NULL in mei_cl_mtu to avoid null dereference. Cc: Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Link: https://lore.kernel.org/r/20201029095444.957924-2-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman

habanalabs: remove security from ARB_MST_QUIET register

2020-11-05T10:51:23+00:00

[ Upstream commit acd330c141b4c49f468f00719ebc944656061eac ] Allow user application to write to this register in order to be able to configure the quiet period of the QMAN between grants. Signed-off-by: farah kassabri Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

misc: fastrpc: fix common struct sg_table related issues

2020-11-05T10:51:18+00:00

[ Upstream commit 7cd7edb89437457ec36ffdbb970cc314d00c4aba ] The Documentation/DMA-API-HOWTO.txt states that the dma_map_sg() function returns the number of the created entries in the DMA address space. However the subsequent calls to the dma_sync_sg_for_{device,cpu}() and dma_unmap_sg must be called with the original number of the entries passed to the dma_map_sg(). struct sg_table is a common structure used for describing a non-contiguous memory buffer, used commonly in the DRM and graphics subsystems. It consists of a scatterlist with memory pages and DMA addresses (sgl entry), as well as the number of scatterlist entries: CPU pages (orig_nents entry) and DMA mapped pages (nents entry). It turned out that it was a common mistake to misuse nents and orig_nents entries, calling DMA-mapping functions with a wrong number of entries or ignoring the number of mapped entries returned by the dma_map_sg() function. To avoid such issues, lets use a common dma-mapping wrappers operating directly on the struct sg_table objects and use scatterlist page iterators where possible. This, almost always, hides references to the nents and orig_nents entries, making the code robust, easier to follow and copy/paste safe. Signed-off-by: Marek Szyprowski Link: https://lore.kernel.org/r/20200826063316.23486-29-m.szyprowski@samsung.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

misc: rtsx: do not setting OC_POWER_DOWN reg in rtsx_pci_init_ocp()

2020-11-01T11:47:10+00:00

commit 551b6729578a8981c46af964c10bf7d5d9ddca83 upstream. this power saving action in rtsx_pci_init_ocp() cause INTEL-NUC6 platform missing card reader Signed-off-by: Ricky Wu Link: https://lore.kernel.org/r/20200824030006.30033-1-ricky_wu@realtek.com Cc: Chris Clayton Signed-off-by: Greg Kroah-Hartman

cxl: Rework error message for incompatible slots

2020-11-01T11:47:08+00:00

commit 40ac790d99c6dd16b367d5c2339e446a5f1b0593 upstream. Improve the error message shown if a capi adapter is plugged on a capi-incompatible slot directly under the PHB (no intermediate switch). Fixes: 5632874311db ("cxl: Add support for POWER9 DD2") Cc: stable@vger.kernel.org # 4.14+ Signed-off-by: Frederic Barrat Reviewed-by: Andrew Donnellan Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200407115601.25453-1-fbarrat@linux.ibm.com Signed-off-by: Greg Kroah-Hartman

eeprom: at25: set minimum read/write access stride to 1

2020-10-29T09:12:22+00:00

commit 284f52ac1c6cfa1b2e5c11b84653dd90e4e91de7 upstream. SPI eeproms are addressed by byte. Signed-off-by: Christian Eggers Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200728092959.24600-1-ceggers@arri.de Signed-off-by: Greg Kroah-Hartman

misc: rtsx: Fix memory leak in rtsx_pci_probe

2020-10-29T09:12:15+00:00

[ Upstream commit bc28369c6189009b66d9619dd9f09bd8c684bb98 ] When mfd_add_devices() fail, pcr->slots should also be freed. However, the current implementation does not free the member, leading to a memory leak. Fix this by adding a new goto label that frees pcr->slots. Signed-off-by: Keita Suzuki Link: https://lore.kernel.org/r/20200909071853.4053-1-keitasuzuki.park@sslab.ics.keio.ac.jp Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

habanalabs: cast to u64 before shift > 31 bits

2020-10-29T09:12:14+00:00

[ Upstream commit f763946aefe67b3ea58696b75a930ba1ed886a83 ] When shifting a boolean variable by more than 31 bits and putting the result into a u64 variable, we need to cast the boolean into unsigned 64 bits to prevent possible overflow. Reported-by: kernel test robot Reported-by: Dan Carpenter Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin