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2020-08-12scripts/gdb: fix python 3.8 SyntaxWarningNick Desaulniers1-2/+2
Fixes the observed warnings: scripts/gdb/linux/rbtree.py:20: SyntaxWarning: "is" with a literal. Did you mean "=="? if node is 0: scripts/gdb/linux/rbtree.py:36: SyntaxWarning: "is" with a literal. Did you mean "=="? if node is 0: It looks like this is a new warning added in Python 3.8. I've only seen this once after adding the add-auto-load-safe-path rule to my ~/.gdbinit for a new tree. Fixes: commit 449ca0c95ea2 ("scripts/gdb: add rb tree iterating utilities") Signed-off-by: Nick Desaulniers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Stephen Boyd <[email protected]> Cc: Jan Kiszka <[email protected]> Cc: Kieran Bingham <[email protected]> Cc: Aymeric Agon-Rambosson <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Link: https://adamj.eu/tech/2020/01/21/why-does-python-3-8-syntaxwarning-for-is-literal/ Signed-off-by: Linus Torvalds <[email protected]>
2020-05-07scripts/gdb: repair rb_first() and rb_last()Aymeric Agon-Rambosson1-2/+2
The current implementations of the rb_first() and rb_last() gdb functions have a variable that references itself in its instanciation, which causes the function to throw an error if a specific condition on the argument is met. The original author rather intended to reference the argument and made a typo. Referring the argument instead makes the function work as intended. Signed-off-by: Aymeric Agon-Rambosson <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Stephen Boyd <[email protected]> Cc: Jan Kiszka <[email protected]> Cc: Kieran Bingham <[email protected]> Cc: Douglas Anderson <[email protected]> Cc: Nikolay Borisov <[email protected]> Cc: Jackie Liu <[email protected]> Cc: Jason Wessel <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2019-05-14scripts/gdb: add rb tree iterating utilitiesStephen Boyd1-0/+177
Implement gdb functions for rb_first(), rb_last(), rb_next(), and rb_prev(). These can be useful to iterate through the kernel's red-black trees. [[email protected]: v2] Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Stephen Boyd <[email protected]> Cc: Douglas Anderson <[email protected]> Cc: Nikolay Borisov <[email protected]> Cc: Kieran Bingham <[email protected]> Cc: Jan Kiszka <[email protected]> Cc: Jackie Liu <[email protected]> Cc: Jason Wessel <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>