Re: [PATCH] lpfc: nvmet_fc: fix format string

From: Joe Perches
Date: Sat May 20 2017 - 06:29:06 EST


On Fri, 2017-05-19 at 10:04 +0200, Arnd Bergmann wrote:
> The lpfc_nvmeio_data() tracing helper always takes a format string and
> three additional arguments.

No it doesn't. It takes a format and arguments.

I don't disagree with the patch, just the characterization
of the lpfc_mvmeio_data call in the commit message.

> The latest caller has a format string with
> only two integer arguments, causing this harmless warning:
>
> drivers/scsi/lpfc/lpfc_nvmet.c: In function 'lpfc_nvmet_xmt_fcp_release':
> drivers/scsi/lpfc/lpfc_nvmet.c:802:25: error: too many arguments for format [-Werror=format-extra-args]
> lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d\n", ctxp->oxid,
>
> We could add a dummy argument here, but it seems reasonable to print
> the 'abort' flag as the third argument.