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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Wolfram Sang Cc: oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Dung Cao Subject: Re: [PATCH net v2] mctp i2c: handle NULL header address Message-ID: <202410220659.hh4B9jRO-lkp@intel.com> References: <20241021-mctp-i2c-null-dest-v2-1-4503e478517c@codeconstruct.com.au> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241021-mctp-i2c-null-dest-v2-1-4503e478517c@codeconstruct.com.au> Hi Matt, kernel test robot noticed the following build errors: [auto build test ERROR on cb560795c8c2ceca1d36a95f0d1b2eafc4074e37] url: https://github.com/intel-lab-lkp/linux/commits/Matt-Johnston/mctp-i2c-handle-NULL-header-address/20241021-123741 base: cb560795c8c2ceca1d36a95f0d1b2eafc4074e37 patch link: https://lore.kernel.org/r/20241021-mctp-i2c-null-dest-v2-1-4503e478517c%40codeconstruct.com.au patch subject: [PATCH net v2] mctp i2c: handle NULL header address config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20241022/202410220659.hh4B9jRO-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241022/202410220659.hh4B9jRO-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202410220659.hh4B9jRO-lkp@intel.com/ All errors (new ones prefixed by >>): drivers/net/mctp/mctp-i2c.c: In function 'mctp_i2c_header_create': >> drivers/net/mctp/mctp-i2c.c:599:23: error: assignment to 'u8' {aka 'unsigned char'} from 'const unsigned char *' makes integer from pointer without a cast [-Wint-conversion] 599 | llsrc = dev->dev_addr; | ^ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] vim +599 drivers/net/mctp/mctp-i2c.c 579 580 static int mctp_i2c_header_create(struct sk_buff *skb, struct net_device *dev, 581 unsigned short type, const void *daddr, 582 const void *saddr, unsigned int len) 583 { 584 struct mctp_i2c_hdr *hdr; 585 struct mctp_hdr *mhdr; 586 u8 lldst, llsrc; 587 588 if (len > MCTP_I2C_MAXMTU) 589 return -EMSGSIZE; 590 591 if (daddr) 592 lldst = *((u8 *)daddr); 593 else 594 return -EINVAL; 595 596 if (saddr) 597 llsrc = *((u8 *)saddr); 598 else > 599 llsrc = dev->dev_addr; 600 601 skb_push(skb, sizeof(struct mctp_i2c_hdr)); 602 skb_reset_mac_header(skb); 603 hdr = (void *)skb_mac_header(skb); 604 mhdr = mctp_hdr(skb); 605 hdr->dest_slave = (lldst << 1) & 0xff; 606 hdr->command = MCTP_I2C_COMMANDCODE; 607 hdr->byte_count = len + 1; 608 hdr->source_slave = ((llsrc << 1) & 0xff) | 0x01; 609 mhdr->ver = 0x01; 610 611 return sizeof(struct mctp_i2c_hdr); 612 } 613 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki