Nathan Chancellor 2f62847cf6 ARM: 9287/1: Reduce __thumb2__ definition to crypto files that require it ... Commit 1d2e9b67b0 ("ARM: 9265/1: pass -march= only to compiler") added a __thumb2__ define to ASFLAGS to avoid build errors in the crypto code, which relies on __thumb2__ for preprocessing. Commit 59e2cf8d21 ("ARM: 9275/1: Drop '-mthumb' from AFLAGS_ISA") followed up on this by removing -mthumb from AFLAGS so that __thumb2__ would not be defined when the default target was ARMv7 or newer. Unfortunately, the second commit's fix assumes that the toolchain defaults to -mno-thumb / -marm, which is not the case for Debian's arm-linux-gnueabihf target, which defaults to -mthumb: $ echo | arm-linux-gnueabihf-gcc -dM -E - | grep __thumb #define __thumb2__ 1 #define __thumb__ 1 This target is used by several CI systems, which will still see redefined macro warnings, despite '-mthumb' not being present in the flags: <command-line>: warning: "__thumb2__" redefined <built-in>: note: this is the location of the previous definition Remove the global AFLAGS __thumb2__ define and move it to the crypto folder where it is required by the imported OpenSSL algorithms; the rest of the kernel should use the internal CONFIG_THUMB2_KERNEL symbol to know whether or not Thumb2 is being used or not. Be sure that __thumb2__ is undefined first so that there are no macro redefinition warnings. Link: https://github.com/ClangBuiltLinux/linux/issues/1772 Reported-by: "kernelci.org bot" <bot@kernelci.org> Suggested-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Fixes: 59e2cf8d21 ("ARM: 9275/1: Drop '-mthumb' from AFLAGS_ISA") Fixes: 1d2e9b67b0 ("ARM: 9265/1: pass -march= only to compiler") Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>		2023-01-23 14:31:18 +00:00
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.gitignore
aes-ce-core.S
aes-ce-glue.c
aes-cipher-core.S
aes-cipher-glue.c	crypto: Prepare to move crypto_tfm_ctx	2022-12-02 18:12:40 +08:00
aes-neonbs-core.S	crypto: arm/aes-neonbs-ctr - deal with non-multiples of AES block size	2022-02-05 15:10:51 +11:00
aes-neonbs-glue.c	crypto: arm/aes-neonbs-ctr - deal with non-multiples of AES block size	2022-02-05 15:10:51 +11:00
blake2b-neon-core.S
blake2b-neon-glue.c
blake2s-core.S
blake2s-glue.c
chacha-glue.c
chacha-neon-core.S
chacha-scalar-core.S
crc32-ce-core.S
crc32-ce-glue.c
crct10dif-ce-core.S
crct10dif-ce-glue.c
curve25519-core.S
curve25519-glue.c
ghash-ce-core.S
ghash-ce-glue.c
Kconfig	crypto: move gf128mul library into lib/crypto	2022-11-11 18:14:59 +08:00
Makefile	ARM: 9287/1: Reduce __thumb2__ definition to crypto files that require it	2023-01-23 14:31:18 +00:00
nh-neon-core.S	crypto: arm/nhpoly1305 - eliminate unnecessary CFI wrapper	2022-11-25 17:39:19 +08:00
nhpoly1305-neon-glue.c	crypto: arm/nhpoly1305 - eliminate unnecessary CFI wrapper	2022-11-25 17:39:19 +08:00
poly1305-armv4.pl
poly1305-glue.c
sha1-armv4-large.S
sha1-armv7-neon.S
sha1-ce-core.S
sha1-ce-glue.c
sha1.h
sha1_glue.c
sha1_neon_glue.c
sha2-ce-core.S
sha2-ce-glue.c
sha256-armv4.pl
sha256_glue.c
sha256_glue.h
sha256_neon_glue.c
sha512-armv4.pl
sha512-glue.c
sha512-neon-glue.c
sha512.h