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Message-ID: <202506290403.FwUOUzZq-lkp@intel.com>
Date: Sun, 29 Jun 2025 04:30:38 +0800
From: kernel test robot <lkp@...el.com>
To: Daniel Golle <daniel@...rotopia.org>, Felix Fietkau <nbd@....name>,
Frank Wunderlich <frank-w@...lic-files.de>,
Eric Woudstra <ericwouds@...il.com>, Elad Yifee <eladwf@...il.com>,
Bo-Cun Chen <bc-bocun.chen@...iatek.com>,
Sky Huang <skylake.huang@...iatek.com>,
Sean Wang <sean.wang@...iatek.com>,
Lorenzo Bianconi <lorenzo@...nel.org>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org
Cc: oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org
Subject: Re: [PATCH net/next 3/3] net: ethernet: mtk_eth_soc: use genpool
allocator for SRAM
Hi Daniel,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
[also build test WARNING on next-20250627]
[cannot apply to net/main linus/master v6.16-rc3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Daniel-Golle/net-ethernet-mtk_eth_soc-improve-support-for-named-interrupts/20250628-093324
base: net-next/main
patch link: https://lore.kernel.org/r/566ca90fc59ad0d3aff8bc8dc22ebaf0544bce47.1751072868.git.daniel%40makrotopia.org
patch subject: [PATCH net/next 3/3] net: ethernet: mtk_eth_soc: use genpool allocator for SRAM
config: arm-randconfig-003-20250629 (https://download.01.org/0day-ci/archive/20250629/202506290403.FwUOUzZq-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250629/202506290403.FwUOUzZq-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506290403.FwUOUzZq-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_dma_ring_alloc':
>> drivers/net/ethernet/mediatek/mtk_eth_soc.c:1282:10: warning: returning 'int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion]
return -ENOMEM;
^
vim +1282 drivers/net/ethernet/mediatek/mtk_eth_soc.c
1275
1276 static void *mtk_dma_ring_alloc(struct mtk_eth *eth, size_t size,
1277 dma_addr_t *dma_handle)
1278 {
1279 void *dma_ring;
1280
1281 if (WARN_ON(mtk_use_legacy_sram(eth)))
> 1282 return -ENOMEM;
1283
1284 if (eth->sram_pool) {
1285 dma_ring = (void *)gen_pool_alloc(eth->sram_pool, size);
1286 if (!dma_ring)
1287 return dma_ring;
1288 *dma_handle = gen_pool_virt_to_phys(eth->sram_pool, (unsigned long)dma_ring);
1289 } else {
1290 dma_ring = dma_alloc_coherent(eth->dma_dev, size, dma_handle,
1291 GFP_KERNEL);
1292 }
1293
1294 return dma_ring;
1295 }
1296
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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