On 2020/02/24 13:22 +0530, Kaaira Gupta wrote:
> On Mon, Feb 24, 2020 at 02:32:25PM +0900, Benjamin Poirier wrote:
> > On 2020/02/22 01:26 +0530, Kaaira Gupta wrote:
> > > Fix checkpatch.pl warnings of adding braces around macro arguments to
> > > prevent precedence issues by adding braces in qlge_dbg.c
> > >
> > > Signed-off-by: Kaaira Gupta <kgupta@xxxxxxxxxxxxx>
> > > ---
> > > drivers/staging/qlge/qlge_dbg.c | 6 +++---
> > > 1 file changed, 3 insertions(+), 3 deletions(-)
> > >
> > > diff --git a/drivers/staging/qlge/qlge_dbg.c b/drivers/staging/qlge/qlge_dbg.c
> > > index 8cf39615c520..c7af2548d119 100644
> > > --- a/drivers/staging/qlge/qlge_dbg.c
> > > +++ b/drivers/staging/qlge/qlge_dbg.c
> > > @@ -1525,7 +1525,7 @@ void ql_dump_regs(struct ql_adapter *qdev)
> > > #ifdef QL_STAT_DUMP
> > >
> > > #define DUMP_STAT(qdev, stat) \
> > > - pr_err("%s = %ld\n", #stat, (unsigned long)qdev->nic_stats.stat)
> > > + pr_err("%s = %ld\n", #stat, (unsigned long)(qdev)->nic_stats.stat)
> > >
> > > void ql_dump_stat(struct ql_adapter *qdev)
> > > {
> > > @@ -1578,12 +1578,12 @@ void ql_dump_stat(struct ql_adapter *qdev)
> > > #ifdef QL_DEV_DUMP
> > >
> > > #define DUMP_QDEV_FIELD(qdev, type, field) \
> > > - pr_err("qdev->%-24s = " type "\n", #field, qdev->field)
> > > + pr_err("qdev->%-24s = " type "\n", #field, (qdev)->(field))
> > > #define DUMP_QDEV_DMA_FIELD(qdev, field) \
> > > pr_err("qdev->%-24s = %llx\n", #field, (unsigned long long)qdev->field)
> > ^^^^
> > You missed one.
>
> It makes the line characaters greater than 80. Shall I still add braces?
> I mean it's better that I add them to prevent precedence issues, but it
> adds another warning, hence I wasn't sure.
Generally speaking, it's ok to spread the macro body onto multiple
lines.
In this case, it would be better to replace this printk format type with
"%pad". See Documentation/core-api/printk-formats.rst
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