Maciej W. Rozycki c4fca4fdea MIPS: strnlen_user.S: Fix a CPU_DADDI_WORKAROUNDS regression ... Correct a regression introduced with 8453eebd [MIPS: Fix strnlen_user() return value in case of overlong strings.] causing assembler warnings and broken code generated in __strnlen_kernel_nocheck_asm: arch/mips/lib/strnlen_user.S: Assembler messages: arch/mips/lib/strnlen_user.S:64: Warning: Macro instruction expanded into multiple instructions in a branch delay slot with the CPU_DADDI_WORKAROUNDS option set, resulting in the function looping indefinitely upon mounting NFS root. Use conditional assembly to avoid a microMIPS code size regression. Using $at unconditionally would cause such a regression as there are no 16-bit instruction encodings available for ALU operations using this register. Using $v1 unconditionally would produce short microMIPS encodings, but would prevent this register from being used across calls to this function. The extra LI operation introduced is free, replacing a NOP originally scheduled into the delay slot of the branch that follows. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10205/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2015-05-29 20:23:58 +02:00
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ashldi3.c
ashrdi3.c
bitops.c
cmpdi2.c
csum_partial.S
delay.c
dump_tlb.c
iomap-pci.c
iomap.c
libgcc.h
lshrdi3.c
Makefile
memcpy.S
memset.S
mips-atomic.c
r3k_dump_tlb.c
strlen_user.S
strncpy_user.S
strnlen_user.S
ucmpdi2.c
uncached.c