[PATCH v3 00/11] Symbol Namespaces

Nicolas Pitre nico at fluxnic.net
Wed Aug 21 05:46:47 PDT 2019


On Wed, 21 Aug 2019, Matthias Maennich wrote:

> As of Linux 5.3-rc5, there are 31205 [1] exported symbols in the kernel.
> That is a growth of roughly 1000 symbols since 4.17 (30206 [2]).  There
> seems to be some consensus amongst kernel devs that the export surface
> is too large, and hard to reason about.

This is good work.

One solution for drastically reducing the effective export surface is to 
have CONFIG_TRIM_UNUSED_KSYMS=y. This is more extreme than symbol 
namespace, but might be worth mentioning nevertheless.


Nicolas



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