[PATCH 10/17] arm: Remove support for LZMA compressed kernel

From: Adam Borowski <kilobyte@angband.pl>
To: linux-kernel@vger.kernel.org, Nick Terrell <terrelln@fb.com>,
	Russell King <linux@armlinux.org.uk>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-m68k@lists.linux-m68k.org,
	Ralf Baechle <ralf@linux-mips.org>,
	Paul Burton <paul.burton@mips.com>,
	James Hogan <jhogan@kernel.org>,
	linux-mips@linux-mips.org, Jonas Bonn <jonas@southpole.se>,
	Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>,
	Stafford Horne <shorne@gmail.com>,
	openrisc@lists.librecores.org,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Deller <deller@gmx.de>,
	linux-parisc@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	linux-s390@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	linux-sh@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, Chris Zankel <chris@zankel.net>,
	Max Filippov <jcmvbkbc@gmail.com>,
	linux-xtensa@linux-xtensa.org
Cc: Adam Borowski <kilobyte@angband.pl>
Subject: [PATCH 10/17] arm: Remove support for LZMA compressed kernel
Date: Fri, 09 Nov 2018 19:02:57 +0000	[thread overview]
Message-ID: <20181109190304.8573-10-kilobyte@angband.pl> (raw)
In-Reply-To: <20181109190304.8573-1-kilobyte@angband.pl>

You want XZ instead: newer version of same algorithm, has an optimized
filter for arm32 executables, uses a library shared with other uses of XZ
in the kernel.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
---
 arch/arm/Kconfig                      | 1 -
 arch/arm/boot/compressed/Makefile     | 1 -
 arch/arm/boot/compressed/decompress.c | 4 ----
 3 files changed, 6 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 91be74d8df65..637e100de6e3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -77,7 +77,6 @@ config ARM
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZ4
-	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
 	select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 1f5a5ffe7fcf..37e6097b7506 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -72,7 +72,6 @@ CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
 
 compress-$(CONFIG_KERNEL_GZIP) = gzip
 compress-$(CONFIG_KERNEL_LZO)  = lzo
-compress-$(CONFIG_KERNEL_LZMA) = lzma
 compress-$(CONFIG_KERNEL_XZ)   = xzkern
 compress-$(CONFIG_KERNEL_LZ4)  = lz4
 
diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c
index c16c1829a5e4..350e7a96f6af 100644
--- a/arch/arm/boot/compressed/decompress.c
+++ b/arch/arm/boot/compressed/decompress.c
@@ -41,10 +41,6 @@ extern int memcmp(const void *cs, const void *ct, size_t count);
 #include "../../../../lib/decompress_unlzo.c"
 #endif
 
-#ifdef CONFIG_KERNEL_LZMA
-#include "../../../../lib/decompress_unlzma.c"
-#endif
-
 #ifdef CONFIG_KERNEL_XZ
 #define memmove memmove
 #define memcpy memcpy
-- 
2.19.1
