This is something Michal had asked for last year, and I just got around to implementing. This version also adds some selftests for this functionality.
Signed-off-by: Jeff Layton <[email protected]> --- Changes in v5: - Increase search= string length from 256 to 4096 - Preprocess search= path when it's set rather than on every firmware load - Add selftests for search= functionality - Link to v4: https://lore.kernel.org/r/[email protected] Changes in v4: - Move search path to new search= option that is tried after path= - Link to v3: https://lore.kernel.org/r/[email protected] Changes in v3: - Allow '\' to escape a literal ':' or '\' in the string - Link to v2: https://lore.kernel.org/r/[email protected] Changes in v2: - switch to using ':' as path delimiter - Link to v1: https://lore.kernel.org/r/[email protected] --- Jeff Layton (2): firmware_loader: add search= module option for multi-path firmware lookup selftests/firmware: add search path test for firmware_class.search= drivers/base/firmware_loader/main.c | 273 +++++++++++++++++++------- tools/testing/selftests/firmware/Makefile | 2 +- tools/testing/selftests/firmware/fw_search.sh | 222 +++++++++++++++++++++ 3 files changed, 420 insertions(+), 77 deletions(-) --- base-commit: c369299895a591d96745d6492d4888259b004a9e change-id: 20260317-fw-path-a094c30259a5 Best regards, -- Jeff Layton <[email protected]>

