Sibi Sankar
5de4af51fe
commit135b9e8d1cupstream The following mem abort is observed when one of the modem blob firmware size exceeds the allocated mpss region. Fix this by restricting the copy size to segment size using request_firmware_into_buf before load. Err Logs: Unable to handle kernel paging request at virtual address Mem abort info: ... Call trace: __memcpy+0x110/0x180 rproc_start+0xd0/0x190 rproc_boot+0x404/0x550 state_store+0x54/0xf8 dev_attr_store+0x44/0x60 sysfs_kf_write+0x58/0x80 kernfs_fop_write+0x140/0x230 vfs_write+0xc4/0x208 ksys_write+0x74/0xf8 ... Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Fixes:051fb70fd4("remoteproc: qcom: Driver for the self-authenticating Hexagon v5") Cc: stable@vger.kernel.org Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20200722201047.12975-3-sibis@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [sudip: manual backport to old file path] Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.