[PATCH net-next] liquidio: enlarge the interrupt name buffer

[PATCH net-next] liquidio: enlarge the interrupt name buffer

[xujiahao]

The PF and VF interrupt names are assembled as "LiquidIO%u-pf%u-rxtx-%u"
and "LiquidIO%u-vf%u-rxtx-%u" into INTRNAMSIZ (32-byte) slots.  Three
full-range %u do not fit, which gcc reports in a W=1 build:

  drivers/net/ethernet/cavium/liquidio/lio_core.c:1119:76: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 13 [-Wformat-truncation=]
  drivers/net/ethernet/cavium/liquidio/lio_core.c:1124:76: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 13 [-Wformat-truncation=]

Enlarge INTRNAMSIZ to 64 bytes.  queue_irq_names is allocated with
kcalloc(num_interrupts, INTRNAMSIZ) and the auxiliary name with
kzalloc(INTRNAMSIZ), so both follow the new size.

Signed-off-by: xujiahao <xujiahao@cmss.chinamobile.com>
---
 drivers/net/ethernet/cavium/liquidio/liquidio_common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cavium/liquidio/liquidio_common.h b/drivers/net/ethernet/cavium/liquidio/liquidio_common.h
index 4da90757c..131e39299 100644
--- a/drivers/net/ethernet/cavium/liquidio/liquidio_common.h
+++ b/drivers/net/ethernet/cavium/liquidio/liquidio_common.h
@@ -102,7 +102,7 @@ enum octeon_tag_type {
 
 #define BYTES_PER_DHLEN_UNIT        8
 #define MAX_REG_CNT                 2000000U
-#define INTRNAMSIZ                  32
+#define INTRNAMSIZ                  64
 #define IRQ_NAME_OFF(i)             ((i) * INTRNAMSIZ)
 #define MAX_IOQ_INTERRUPTS_PER_PF   (64 * 2)
 #define MAX_IOQ_INTERRUPTS_PER_VF   (8 * 2)
-- 
2.43.0

Re: [PATCH net-next] liquidio: enlarge the interrupt name buffer

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (main)
by Dave Miller <davem@davem-thinkpadp1gen8.ibmlond.csb>:

On Fri,  6 Nov 2026 17:51:14 +0800 you wrote:
> The PF and VF interrupt names are assembled as "LiquidIO%u-pf%u-rxtx-%u"
> and "LiquidIO%u-vf%u-rxtx-%u" into INTRNAMSIZ (32-byte) slots.  Three
> full-range %u do not fit, which gcc reports in a W=1 build:
> 
>   drivers/net/ethernet/cavium/liquidio/lio_core.c:1119:76: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 13 [-Wformat-truncation=]
>   drivers/net/ethernet/cavium/liquidio/lio_core.c:1124:76: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 13 [-Wformat-truncation=]
> 
> [...]

Here is the summary with links:
  - [net-next] liquidio: enlarge the interrupt name buffer
    https://git.kernel.org/netdev/net-next/c/1be1e065008d

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html