[PATCH] common: fastboot: make CONFIG_FASTBOOT_SPARSE=y the default

[PATCH] common: fastboot: make CONFIG_FASTBOOT_SPARSE=y the default

[Ahmad Fatoum]

Back in 2018, sparse support was made optional as "[s]parse support
is not always desired" without further elaboration.

Arguably the majority of users would benefit from sparse support enabled,
so flip the Kconfig default to make it opt-out instead.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
@Sascha, do you recall what reasons would there be to disable sparse
support? As I can't think of any besides binary size, I chose not to
include a migration guide entry about the default changing.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 common/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common/Kconfig b/common/Kconfig
index f7122d89c6e2..85df7f7daec6 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1478,6 +1478,7 @@ config FASTBOOT_SPARSE
 	bool
 	select IMAGE_SPARSE
 	prompt "Enable Fastboot sparse image support"
+	default y
 	help
 	  Sparse images are a way for the fastboot protocol to write
 	  images that are bigger than the available memory. If unsure,
-- 
2.47.3

Re: [PATCH] common: fastboot: make CONFIG_FASTBOOT_SPARSE=y the default

[Sascha Hauer]

On Thu, 09 Jul 2026 15:10:06 +0200, Ahmad Fatoum wrote:
> Back in 2018, sparse support was made optional as "[s]parse support
> is not always desired" without further elaboration.
> 
> Arguably the majority of users would benefit from sparse support enabled,
> so flip the Kconfig default to make it opt-out instead.
> 
> 
> [...]

Applied, thanks!

[1/1] common: fastboot: make CONFIG_FASTBOOT_SPARSE=y the default
      https://git.pengutronix.de/cgit/barebox/commit/?id=712e9cf0f3f4 (link may not be stable)

Best regards,
-- 
Sascha Hauer <s.hauer@pengutronix.de>