Messages in this thread | | | Date | Thu, 27 Apr 2006 09:28:58 +0300 (EEST) | From | Pekka J Enberg <> | Subject | Re: [PATCH] likely cleanup: remove unlikely for kfree(NULL) |
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On Wed, 26 Apr 2006, Kyle Moffett wrote: > Here's code that I've found works as well as can be expected under both GCC 3 > and GCC 4. If xp is a known-NULL constant the whole function will be > optimized out completely. If xp is known-not-NULL, then it will optimize to a > kfree function without the null check. Otherwise it optimizes to call the > out-of-line version.
Wouldn't it be better to simply remove calls to kfree() with known NULL constant?
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