Messages in this thread | | | Subject | Re: [PATCH 6/9] nfsd: fix empty-body warning in nfs4state.c | From | Randy Dunlap <> | Date | Sat, 18 Apr 2020 11:57:28 -0700 |
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On 4/18/20 11:53 AM, Joe Perches wrote: > On Sat, 2020-04-18 at 14:45 -0400, Chuck Lever wrote: >>> On Apr 18, 2020, at 2:41 PM, Randy Dunlap <rdunlap@infradead.org> wrote: >>> >>> Fix gcc empty-body warning when -Wextra is used: >>> >>> ../fs/nfsd/nfs4state.c:3898:3: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body] >>> >>> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> >>> Cc: Linus Torvalds <torvalds@linux-foundation.org> >>> Cc: Andrew Morton <akpm@linux-foundation.org> >>> Cc: "J. Bruce Fields" <bfields@fieldses.org> >>> Cc: Chuck Lever <chuck.lever@oracle.com> >>> Cc: linux-nfs@vger.kernel.org >> >> I have a patch in my queue that addresses this particular warning, >> but your change works for me too. >> >> Acked-by: Chuck Lever <chuck.lever@oracle.com> >> >> Unless Bruce objects. >> >> >>> --- >>> fs/nfsd/nfs4state.c | 3 ++- >>> 1 file changed, 2 insertions(+), 1 deletion(-) >>> >>> --- linux-next-20200417.orig/fs/nfsd/nfs4state.c >>> +++ linux-next-20200417/fs/nfsd/nfs4state.c >>> @@ -34,6 +34,7 @@ >>> >>> #include <linux/file.h> >>> #include <linux/fs.h> >>> +#include <linux/kernel.h> >>> #include <linux/slab.h> >>> #include <linux/namei.h> >>> #include <linux/swap.h> >>> @@ -3895,7 +3896,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp >>> copy_clid(new, conf); >>> gen_confirm(new, nn); >>> } else /* case 4 (new client) or cases 2, 3 (client reboot): */ >>> - ; >>> + do_empty(); >>> new->cl_minorversion = 0; >>> gen_callback(new, setclid, rqstp); >>> add_to_unconfirmed(new); > > This empty else seems silly and could likely be better handled by > a comment above the first if, something like: > > /* for now only handle case 1: probable callback update */ > if (conf && same_verf(&conf->cl_verifier, &clverifier)) { > copy_clid(new, conf); > gen_confirm(new, nn); > } > > with no else use.
I'll just let Chuck handle it with his current patch, whatever it is.
thanks. -- ~Randy
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