I initially misread the patch description (and imagined an entirely different problem).

On 03/07/18 06:06, James Hogan wrote:

On dtb files which contain hyphens, the dt_S_dtb command to build the> dtb.S files (which allow DTB files to be built into the kernel) results> in errors like the following:> > bcm3368-netgear-cvg834g.dtb.S: Assembler messages:> bcm3368-netgear-cvg834g.dtb.S:5: Error: : no such section> bcm3368-netgear-cvg834g.dtb.S:5: Error: junk at end of line, first unrecognized character is `-'> bcm3368-netgear-cvg834g.dtb.S:6: Error: unrecognized opcode `__dtb_bcm3368-netgear-cvg834g_begin:'> bcm3368-netgear-cvg834g.dtb.S:8: Error: unrecognized opcode `__dtb_bcm3368-netgear-cvg834g_end:'> bcm3368-netgear-cvg834g.dtb.S:9: Error: : no such section> bcm3368-netgear-cvg834g.dtb.S:9: Error: junk at end of line, first unrecognized character is `-'

Please replace the following section:

This is due to the hyphen being used in symbol names. Replace all hyphens with underscores in the dt_S_dtb command to avoid this problem.

Quite a lot of dts files have hyphens, but its only a problem on MIPS where such files can be built into the kernel. For example when CONFIG_DT_NETGEAR_CVG834G=y, or on BMIPS kernels when the dtbs target is used (in the latter case it admitedly shouldn't really build all the dtb.o files, but thats a separate issue).

with:

cmd_dt_S_dtb constructs the assembly source to incorporate a devicetree FDT (that is, the .dtb file) as binary data in the kernel image. This assembly source contains labels before and after the binary data. The label names incorporate the file name of the corresponding .dtb file. Hyphens are not legal characters in labels, so transform all hyphens from the file name to underscores when constructing the labels.

Fixes: 695835511f96 ("MIPS: BMIPS: rename bcm96358nb4ser to bcm6358-neufbox4-sercom") Signed-off-by: James Hogan jhogan@kernel.org Cc: Rob Herring robh+dt@kernel.org Cc: Frank Rowand frowand.list@gmail.com Cc: Masahiro Yamada yamada.masahiro@socionext.com Cc: Michal Marek michal.lkml@markovi.net Cc: Ralf Baechle ralf@linux-mips.org Cc: Florian Fainelli f.fainelli@gmail.com Cc: Kevin Cernekee cernekee@gmail.com Cc: devicetree@vger.kernel.org Cc: linux-kbuild@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org # 4.9+

---

scripts/Makefile.lib | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 5589bae34af6..a6f538b31ad6 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -297,11 +297,11 @@ cmd_dt_S_dtb= \ echo '#include <asm-generic/vmlinux.lds.h>'; \ echo '.section .dtb.init.rodata,"a"'; \ echo '.balign STRUCT_ALIGNMENT'; \

• echo '.global __dtb_$(*F)_begin'; \
• echo '__dtb_$(*F)_begin:'; \

• echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
• echo '__dtb_$(subst -,_,$(*F))_begin:'; \ echo '.incbin "$<" '; \

• echo '__dtb_$(*F)_end:'; \
• echo '.global __dtb_$(*F)_end'; \

• echo '__dtb_$(subst -,_,$(*F))_end:'; \
• echo '.global __dtb_$(subst -,_,$(*F))_end'; \ echo '.balign STRUCT_ALIGNMENT'; \

) > $@

Reviewed-by: Frank Rowand frowand.list@gmail.com