diff options
| author |   Colin Ian King <colin.king@canonical.com> | 2020-10-20 16:42:03 +0100 |
|---|---|---|
| committer |   Marc Kleine-Budde <mkl@pengutronix.de> | 2020-11-03 22:30:32 +0100 |
| commit | c3ddac4b0c9a280d4d5b670b4d39c50fee88579e (patch) | |
| tree | d17f48e6e795546bd5dc7fc489a27d1fafe820c9 /net/can/isotp.c | |
| parent | can: isotp: isotp_rcv_cf(): enable RX timeout handling in listen-only mode (diff) | |
| download | wireguard-linux-c3ddac4b0c9a280d4d5b670b4d39c50fee88579e.tar.xz wireguard-linux-c3ddac4b0c9a280d4d5b670b4d39c50fee88579e.zip | |
can: isotp: padlen(): make const array static, makes object smaller
Don't populate the const array plen on the stack but instead it static. Makes
the object code smaller by 926 bytes.
Before:
text data bss dec hex filename
26531 1943 64 28538 6f7a net/can/isotp.o
After:
text data bss dec hex filename
25509 2039 64 27612 6bdc net/can/isotp.o
(gcc version 10.2.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201020154203.54711-1-colin.king@canonical.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'net/can/isotp.c')
| -rw-r--r-- | net/can/isotp.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/net/can/isotp.c b/net/can/isotp.c index a79287ef86da..d78ab13bd8be 100644 --- a/net/can/isotp.c +++ b/net/can/isotp.c @@ -252,14 +252,16 @@ static void isotp_rcv_skb(struct sk_buff *skb, struct sock *sk) static u8 padlen(u8 datalen) { - const u8 plen[] = {8, 8, 8, 8, 8, 8, 8, 8, 8, /* 0 - 8 */ - 12, 12, 12, 12, /* 9 - 12 */ - 16, 16, 16, 16, /* 13 - 16 */ - 20, 20, 20, 20, /* 17 - 20 */ - 24, 24, 24, 24, /* 21 - 24 */ - 32, 32, 32, 32, 32, 32, 32, 32, /* 25 - 32 */ - 48, 48, 48, 48, 48, 48, 48, 48, /* 33 - 40 */ - 48, 48, 48, 48, 48, 48, 48, 48}; /* 41 - 48 */ + static const u8 plen[] = { + 8, 8, 8, 8, 8, 8, 8, 8, 8, /* 0 - 8 */ + 12, 12, 12, 12, /* 9 - 12 */ + 16, 16, 16, 16, /* 13 - 16 */ + 20, 20, 20, 20, /* 17 - 20 */ + 24, 24, 24, 24, /* 21 - 24 */ + 32, 32, 32, 32, 32, 32, 32, 32, /* 25 - 32 */ + 48, 48, 48, 48, 48, 48, 48, 48, /* 33 - 40 */ + 48, 48, 48, 48, 48, 48, 48, 48 /* 41 - 48 */ + }; if (datalen > 48) return 64; |