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'commitb2accfe7ca("powerpc/boot: Check for ld-option support")' suppressed linker warnings, but the expressed used did not go well with POSIX shell (dash) resulting with this warning arch/powerpc/boot/wrapper: 237: [: 0: unexpected operator ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions Fix the check to handle the reported warning. Patch also fixes couple of shellcheck reported errors for the same line. In arch/powerpc/boot/wrapper line 237: if [ $(${CROSS}ld -v --no-warn-rwx-segments &>/dev/null; echo $?) -eq 0 ]; then ^-- SC2046 (warning): Quote this to prevent word splitting. ^------^ SC2086 (info): Double quote to prevent globbing and word splitting. ^---------^ SC3020 (warning): In POSIX sh, &> is undefined. Fixes:b2accfe7ca("powerpc/boot: Check for ld-option support") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Reviewed-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20250423082154.30625-1-maddy@linux.ibm.com