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* [PATCH] net/qede/base: fix 32-bit build with GCC 12
@ 2022-10-04 11:18 Thomas Monjalon
  2022-10-05 19:28 ` David Marchand
  2022-10-06 10:27 ` Thomas Monjalon
  0 siblings, 2 replies; 3+ messages in thread
From: Thomas Monjalon @ 2022-10-04 11:18 UTC (permalink / raw)
  To: dev; +Cc: stable, Rasesh Mody, Devendra Singh Rawat

A pointer is passed to a macro and it seems mistakenly referenced.
This issue is seen only when compiling with GCC 12 for 32-bit:

drivers/net/qede/base/ecore_init_fw_funcs.c:1418:25:
        error: array subscript 1 is outside array bounds of ‘u32[1]’
        {aka ‘unsigned int[1]’} [-Werror=array-bounds]
 1418 |                 ecore_wr(dev, ptt, ((addr) + (4 * i)),  \
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1419 |                          ((u32 *)&(arr))[i]);           \
      |                          ~~~~~~~~~~~~~~~~~~~
drivers/net/qede/base/ecore_init_fw_funcs.c:1465:17:
        note: in expansion of macro ‘ARR_REG_WR’
 1465 |         ARR_REG_WR(p_hwfn, p_ptt, addr, pData, len_in_dwords);
      |         ^~~~~~~~~~
drivers/net/qede/base/ecore_init_fw_funcs.c:1439:35:
        note: at offset 4 into object ‘pData’ of size 4
 1439 |                              u32 *pData,
      |                              ~~~~~^~~~~

Fixes: 3b307c55f2ac ("net/qede/base: update FW to 8.40.25.0")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 drivers/net/qede/base/ecore_init_fw_funcs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/qede/base/ecore_init_fw_funcs.c b/drivers/net/qede/base/ecore_init_fw_funcs.c
index 6a52f32cc9..0aa7f85567 100644
--- a/drivers/net/qede/base/ecore_init_fw_funcs.c
+++ b/drivers/net/qede/base/ecore_init_fw_funcs.c
@@ -1416,7 +1416,7 @@ void ecore_init_brb_ram(struct ecore_hwfn *p_hwfn,
 		u32 i;						\
 		for (i = 0; i < (arr_size); i++)		\
 			ecore_wr(dev, ptt, ((addr) + (4 * i)),	\
-				 ((u32 *)&(arr))[i]);		\
+				 ((u32 *)arr)[i]);		\
 	} while (0)
 
 #ifndef DWORDS_TO_BYTES
-- 
2.36.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

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2022-10-04 11:18 [PATCH] net/qede/base: fix 32-bit build with GCC 12 Thomas Monjalon
2022-10-05 19:28 ` David Marchand
2022-10-06 10:27 ` Thomas Monjalon

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