Messages in this thread | | | Date | Wed, 3 Apr 2019 06:26:32 +0200 | From | Greg KH <> | Subject | Re: [PATCH] staging: gdm724x: Add parenthesis to Macro arguments |
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On Tue, Apr 02, 2019 at 10:04:05PM -0300, Andre Dainez wrote: > Fix checkpatch errors: > > CHECK: Macro argument 'len' may be better as '(len)' to avoid precedence issues > CHECK: Macro argument 'nlh' may be better as '(nlh)' to avoid precedence issues > > Signed-off-by: Andre Dainez <andredainez@gmail.com> > --- > drivers/staging/gdm724x/netlink_k.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/staging/gdm724x/netlink_k.c b/drivers/staging/gdm724x/netlink_k.c > index 92440c3..36d88f4 100644 > --- a/drivers/staging/gdm724x/netlink_k.c > +++ b/drivers/staging/gdm724x/netlink_k.c > @@ -19,8 +19,8 @@ static DEFINE_MUTEX(netlink_mutex); > #define ND_NLMSG_SPACE(len) (NLMSG_SPACE(len) + ND_IFINDEX_LEN) > #define ND_NLMSG_DATA(nlh) ((void *)((char *)NLMSG_DATA(nlh) + \ > ND_IFINDEX_LEN)) > -#define ND_NLMSG_S_LEN(len) (len + ND_IFINDEX_LEN) > -#define ND_NLMSG_R_LEN(nlh) (nlh->nlmsg_len - ND_IFINDEX_LEN) > +#define ND_NLMSG_S_LEN(len) ((len) + ND_IFINDEX_LEN)
This makes sense, but:
> +#define ND_NLMSG_R_LEN(nlh) ((nlh)->nlmsg_len - ND_IFINDEX_LEN)
That does not, correct?
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