Messages in this thread | | | Date | Mon, 8 Nov 2021 15:24:39 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v0 00/42] notifiers: Return an error when callback is already registered |
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On Mon, Nov 08, 2021 at 09:17:03AM -0500, Alan Stern wrote: > What reason is there for moving the check into the callers? It seems > like pointless churn. Why not add the error return code, change the > WARN to pr_warn, and leave the callers as they are? Wouldn't that end > up having exactly the same effect? > > For that matter, what sort of remedial action can a caller take if the > return code is -EEXIST? Is there any point in forcing callers to check > the return code if they can't do anything about it?
See my reply to Geert from just now:
https://lore.kernel.org/r/YYkyUEqcsOwQMb1S@zn.tnic
I guess I can add another indirection to notifier_chain_register() and avoid touching all the call sites.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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