On Mon, Feb 27, 2023 at 06:51:35PM -0600, jassisinghb...@gmail.com wrote: > From: Jassi Brar <jaswinder.si...@linaro.org> > > The patchset reduces ~400 lines of code, while keeping the functionality same > and making > meta-data operations much faster (by using cached structures). > > Issue: > meta-data copies (primary and secondary) are being handled by the > backend/storage layer > instead of the common core in fwu.c (as also noted by Ilias) that is, > gpt_blk.c manages > meta-data and similarly raw_mtd.c will have to do the same when it arrives. > The code > could by make smaller, cleaner and optimised. > > Basic idea: > Introduce .read_mdata() and .write_mdata() in fwu_mdata_ops that simply > read/write > meta-data copy. The core code takes care of integrity and redundancy of the > meta-data, > as a result we can get rid of every other callback .get_mdata() > .update_mdata() > .get_mdata_part_num() .read_mdata_partition() .write_mdata_partition() and > the > corresponding wrapper functions thereby making the code 100s of LOC smaller. > > Get rid of fwu_check_mdata_validity() and fwu_mdata_check() which expected > underlying > layer to manage and verify mdata copies. > Implement fwu_get_verified_mdata(struct fwu_mdata *mdata) public function > that reads, > verifies and, if needed, fixes the meta-data copies. > > Verified copy of meta-data is now cached as 'g_mdata' in fwu.c, which avoids > multiple > low-level expensive read and parse calls. > gpt meta-data partition numbers are now cached in gpt_blk.c, so that we don't > have to do expensive part_get_info() and uid ops. > > Changes since v4: > * Change fwu-mdata-mtd bindings to not require external changes > * Handle 'part == BOTH_PARTS' in fwu_sync_mdata > * use parts_ok[] and parts_mdata[] instead of pri/sec_ok and p/s_mdata
Did you run this through CI / build sandbox? This doesn't read like you fixed the problem I reported in CI, when I was trying to merge v4. -- Tom
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