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84d0fb1bb6
enable_step_tsk is the only user of disable_dbg, which doesn't respect our 'dai' order for exception masking. enable_step_tsk may enable single-step, so previously needed to mask debug exceptions to prevent us from single-stepping kernel_exit. enable_step_tsk is called at the end of the ret_to_user loop, which has already masked all exceptions so this is no longer needed. Remove disable_dbg, add a comment that enable_step_tsk's caller should have masked debug. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> |
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| kernel | ||
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| README | ||
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.