powerpc: unrel_branch_check.sh: simplify and tidy up the final loop

awk '$2 == "<__end_interrupts>:" { print $1 }'

)

BRANCHES=$(

$objdump -R -D --no-show-raw-insn --start-address="$kstart" --stop-address="$end_intr" "$vmlinux" |

sed -E -n '

# match lines that start with a kernel address

	# strip out condition registers

	s/:0xcr[0-7],/:0x/

	p

}'

)

for tuple in $BRANCHES; do

	from=$(echo "$tuple" | cut -d':' -f1)

	branch=$(echo "$tuple" | cut -d':' -f2)

	to=$(echo "$tuple" | cut -d':' -f3)

	sym=$(echo "$tuple" | cut -d':' -f4)

}' | {

all_good=true

while IFS=: read -r from branch to sym; do

	if (( to > end_intr )); then

		if [ -z "$bad_branches" ]; then

			echo "WARNING: Unrelocated relative branches"

			bad_branches="yes"

		if $all_good; then

			printf '%s\n' 'WARNING: Unrelocated relative branches'

			all_good=false

		fi

		echo "$from $branch-> $to $sym"

		printf '%s %s-> %s %s\n' "$from" "$branch" "$to" "$sym"

	fi

done

if [ -z "$bad_branches" ]; then

	exit 0

fi

$all_good

}