Re: [PATCH net-next] sfc: use flow_rule_no_unsupp_control_flags()

From: Asbjørn Sloth Tønnesen
Date: Tue Apr 16 2024 - 10:17:11 EST


Hi Ed,

On 4/16/24 1:57 PM, Edward Cree wrote:
On 16/04/2024 14:44, Asbjørn Sloth Tønnesen wrote:
Adopt nfp-style *_FLOWER_SUPPORTED_CTLFLAGS define.

Change the check for unsupported control flags, to use the new helper
flow_rule_is_supp_control_flags().

Since the helper was based on sfc, then nothing really changes.

Compile-tested, and compiled objects are identical.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@xxxxxxxxxxx>

Subject line doesn't match the patch (I guess because the helper
got renamed).

Correct, through I had fixed it everywhere. Apparently I missed one.


---
drivers/net/ethernet/sfc/tc.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/sfc/tc.c b/drivers/net/ethernet/sfc/tc.c
index 82e8891a619a..5f73f1dea524 100644
--- a/drivers/net/ethernet/sfc/tc.c
+++ b/drivers/net/ethernet/sfc/tc.c
@@ -21,6 +21,10 @@
#include "ef100_rep.h"
#include "efx.h"
+#define SFC_FLOWER_SUPPORTED_CTLFLAGS \
+ (FLOW_DIS_IS_FRAGMENT | \
+ FLOW_DIS_FIRST_FRAG)

I'd rather keep the flags in-line, next to where they're actually
used. I.e. we have
if (flags & FRAGMENT)
blah;
if (flags & FIRST_FRAG)
foo;
if (!blah_supported(FRAGMENT | FIRST_FRAG))
return -EEK;
and it's very clear that anyone changing one of those parts also
needs to change the other. Whereas with your #define it's not
immediately obvious to someone reading the code where that set
of supported flags comes from conceptually.

Ok, I liked the NFP-style #define, but will drop trying to expand that.

pw-bot: changes-requested

--
Best regards
Asbjørn Sloth Tønnesen
Network Engineer
Fiberby - AS42541