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| author | Douglas Anderson <[email protected]> | 2020-05-07 23:11:46 +0000 |
|---|---|---|
| committer | Daniel Thompson <[email protected]> | 2020-06-02 14:15:46 +0000 |
| commit | 1b310030bb855b9b13d1c0a9feffdb54883b06ab (patch) | |
| tree | 83c8710aa1c85c2cbb79ac3dfea06fe1a09fc2bc /tools/perf/scripts/python/sched-migration.py | |
| parent | serial: amba-pl011: Support kgdboc_earlycon (diff) | |
| download | kernel-1b310030bb855b9b13d1c0a9feffdb54883b06ab.tar.gz kernel-1b310030bb855b9b13d1c0a9feffdb54883b06ab.zip | |
kdb: Cleanup math with KDB_CMD_HISTORY_COUNT
From code inspection the math in handle_ctrl_cmd() looks super sketchy
because it subjects -1 from cmdptr and then does a "%
KDB_CMD_HISTORY_COUNT". It turns out that this code works because
"cmdptr" is unsigned and KDB_CMD_HISTORY_COUNT is a nice power of 2.
Let's make this a little less sketchy.
This patch should be a no-op.
Signed-off-by: Douglas Anderson <[email protected]>
Link: https://lore.kernel.org/r/20200507161125.1.I2cce9ac66e141230c3644b8174b6c15d4e769232@changeid
Reviewed-by: Sumit Garg <[email protected]>
Signed-off-by: Daniel Thompson <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions