kernel.git/drivers/soc/qcom/smem.c, branch linux-5.2.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284

2019-06-05T15:36:37Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman

soc: qcom: smem: a few last cleanups

2018-09-13T21:57:11Z

This patch contains several small cleanups: - In qcom_smem_enumerate_partitions(), change the "local_host" argument to have 16 bit unsigned type - Also in qcom_smem_enumerate_partitions(), change the type of the "host0" and "host1" local variables to be u16 - Fix error messages reporting host ids to use the right format specifier - Shorten the error messages as well, to fit on one line - Add a compile-time check to ensure the local host value passed to qcom_smem_enumerate_partitions() is in range Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: verify partition host ids match

2018-09-13T21:57:10Z

Add verification in qcom_smem_partition_header() that the host ids found in a partition's header structure match those in its partition table entry. Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: small change in global entry loop

2018-09-13T21:57:08Z

Change the logic in the loop that finds that global host entry in the partition table not require the host0 and host1 local variables. The next patch will remove them. Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: verify partition offset_free_uncached

2018-09-13T21:57:06Z

Add verification in qcom_smem_partition_header() that the offset_free_uncached field in a partition's header structure does not exceed the partition's size. Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: verify partition header size

2018-09-13T21:57:04Z

Add verification in qcom_smem_partition_header() that the size in a partition's header structure matches the size in its partition table entry. Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: introduce qcom_smem_partition_header()

2018-09-13T21:57:01Z

Create a new function qcom_smem_partition_header() to encapsulate validating locating a partition header and validating information found within it. This will be built up over a few commits to make it more obvious how the common function is replacing duplicated code elsewhere. Initially it just verifies the header has the right magic number. Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: require order of host ids to match

2018-09-13T21:56:59Z

In qcom_smem_enumerate_partitions(), we find all partitions that have a given local host id in either its host0 or its host1 field in the partition table entry. We then verify that the header structure at the start of each partition also contains the same two host ids as is found in the table of contents. There is no requirement that the order of the two host ids be the same in the table of contents and in the partition header. This patch changes that, requiring host0 to in the partition table entry to equal host0 in the partition header structure (and similar for the host1 values). Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: verify both host ids in partition header

2018-09-13T21:56:58Z

The global partition is indicated by having both host values in its table of contents entry equal SMEM_GLOBAL_HOST=0xfffe. In qcom_smem_set_global_partition(), we check whether the header structure at the beginning of the partition contains that host value, but the check only verifies *one* of them. Change the check so the partition header must have SMEM_GLOBAL_HOST for *both* its host fields. Signed-off-by: Alex Elder Signed-off-by: Andy Gross

soc: qcom: smem: small refactor in qcom_smem_enumerate_partitions()

2018-09-13T21:56:56Z

Combine the code that checks whether a partition table entry is associated with the local host with the assignment of the remote host id value. Signed-off-by: Alex Elder Signed-off-by: Andy Gross