Pali Rohár <pali@xxxxxxxxxx> wrote: > ENOTSUPP (double PP) is internal linux kernel code 524 available only in > kernel include file linux/errno.h and not exported to userspace. > > EOPNOTSUPP (OP; double PP) is standard code 95 for reporting 'operation not > supported' available via kernel include file uapi/asm-generic/errno.h. > > ENOTSUP (single P) is alias for EOPNOTSUPP defined only in userspace > include file bits/errno.h and not available in kernel. > > Because Linux kernel does not support ENOTSUP (single P) and because > userspace does not support ENOTSUPP (double PP), report error code for > 'operation not supported' via EOPNOTSUPP macro. > > This patch fixes problem that mwifiex kernel driver sends to userspace > unsupported error codes like: "failed: -524 (No error information)". > After applying this patch userspace see: "failed: -95 (Not supported)". > > Signed-off-by: Pali Rohár <pali@xxxxxxxxxx> > Acked-by: Ganapathi Bhat <ganapathi.bhat@xxxxxxx> Patch applied to wireless-drivers-next.git, thanks. 9187f4e84092 mwifiex: Fix reporting 'operation not supported' error code -- https://patchwork.kernel.org/patch/11641737/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
