Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.16 061/279] net: hns: Avoid action name truncation | Date | Mon, 18 Jun 2018 10:10:46 +0200 |
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4.16-stable review patch. If anyone has any objections, please let me know.
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From: dann frazier <dann.frazier@canonical.com>
[ Upstream commit f4ea89110df237da6fbcaab76af431e85f07d904 ]
When longer interface names are used, the action names exposed in /proc/interrupts and /proc/irq/* maybe truncated. For example, when using the predictable name algorithm in systemd on a HiSilicon D05, I see:
ubuntu@d05-3:~$ grep enahisic2i0-tx /proc/interrupts | sed 's/.* //' enahisic2i0-tx0 enahisic2i0-tx1 [...] enahisic2i0-tx8 enahisic2i0-tx9 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1 enahisic2i0-tx1
Increase the max ring name length to allow for an interface name of IFNAMSIZE. After this change, I now see:
$ grep enahisic2i0-tx /proc/interrupts | sed 's/.* //' enahisic2i0-tx0 enahisic2i0-tx1 enahisic2i0-tx2 [...] enahisic2i0-tx8 enahisic2i0-tx9 enahisic2i0-tx10 enahisic2i0-tx11 enahisic2i0-tx12 enahisic2i0-tx13 enahisic2i0-tx14 enahisic2i0-tx15
Signed-off-by: dann frazier <dann.frazier@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/hisilicon/hns/hnae.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/hisilicon/hns/hnae.h +++ b/drivers/net/ethernet/hisilicon/hns/hnae.h @@ -87,7 +87,7 @@ do { \ #define HNAE_AE_REGISTER 0x1 -#define RCB_RING_NAME_LEN 16 +#define RCB_RING_NAME_LEN (IFNAMSIZ + 4) #define HNAE_LOWEST_LATENCY_COAL_PARAM 30 #define HNAE_LOW_LATENCY_COAL_PARAM 80
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