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charset="utf-8" The current check is bogus and would allow to pass any value with the -Z option. Signed-off-by: Antonio Alvarez Feijoo --- arch/powerpc/boot/wrapper | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index 50607bc47d05..8fbc4b98cfce 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -148,7 +148,7 @@ while [ "$#" -gt 0 ]; do -Z) shift [ "$#" -gt 0 ] || usage - [ "$1" !=3D "gz" -o "$1" !=3D "xz" -o "$1" !=3D "lzma" -o "$1" != =3D "lzo" -o "$1" !=3D "none" ] || usage + [ "$1" =3D "gz" -o "$1" =3D "xz" -o "$1" =3D "lzma" -o "$1" =3D "l= zo" -o "$1" =3D "none" ] || usage =20 compression=3D".$1" uboot_comp=3D$1 --=20 2.51.0