linux-kernel - [PATCH v7 4/6] kbuild: Support a MAKE_FIT

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Message-ID: <20251211140309.1910613-5-sjg@chromium.org>
Date: Thu, 11 Dec 2025 07:03:01 -0700
From: Simon Glass <sjg@...omium.org>
To: linux-arm-kernel@...ts.infradead.org
Cc: Nicolas Schier <nicolas@...sle.eu>,
	Thomas Weißschuh <thomas.weissschuh@...utronix.de>,
	J . Neuschäfer <j.ne@...teo.net>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Tom Rini <trini@...sulko.com>,
	Ahmad Fatoum <a.fatoum@...gutronix.de>,
	Chen-Yu Tsai <wenst@...omium.org>,
	Simon Glass <sjg@...omium.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Ard Biesheuvel <ardb@...nel.org>,
	Josh Poimboeuf <jpoimboe@...nel.org>,
	Kees Cook <kees@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nsc@...nel.org>,
	Oleh Zadorozhnyi <lesorubshayan@...il.com>,
	Petr Mladek <pmladek@...e.com>,
	linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v7 4/6] kbuild: Support a MAKE_FIT_FLAGS environment variable

In some cases it is useful to be able to pass additional flags to the
make_fit.py script. For example, since ramdisks are typically large,
passing -E to use external data can be helpful.

Add a new MAKE_FIT_FLAGS variable for this.

Signed-off-by: Simon Glass <sjg@...omium.org>
---

Changes in v7:
- Add a new patch with the MAKE_FIT_FLAGS change

 scripts/Makefile.lib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 28a1c08e3b22..a5641a6538b1 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -400,7 +400,7 @@ FIT_COMPRESSION ?= gzip
 
 quiet_cmd_fit = FIT     $@
       cmd_fit = $(MAKE_FIT) -o $@ --arch $(UIMAGE_ARCH) --os linux \
-		--name '$(UIMAGE_NAME)' \
+		--name '$(UIMAGE_NAME)' $(MAKE_FIT_FLAGS) \
 		$(if $(findstring 1,$(KBUILD_VERBOSE)),-v) \
 		$(if $(FIT_DECOMPOSE_DTBS),--decompose-dtbs) \
 		--compress $(FIT_COMPRESSION) -k $< @$(word 2,$^)
-- 
2.43.0