Re: [linux-next:master 7287/11993] s390x-linux-ld: topology.c:undefined reference to `__tsan_memcpy'

From: Yury Norov <yury.norov@gmail.com>
To: kernel test robot <lkp@intel.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
	Linux Memory Management List <linux-mm@kvack.org>,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	linux-s390@vger.kernel.org
Subject: Re: [linux-next:master 7287/11993] s390x-linux-ld: topology.c:undefined reference to `__tsan_memcpy'
Date: Fri, 30 Sep 2022 18:24:47 -0700	[thread overview]
Message-ID: <YzeW3yqxvkpYKCxa@yury-laptop> (raw)
In-Reply-To: <202210010718.2kaVANGb-lkp@intel.com>

On Sat, Oct 01, 2022 at 07:12:48AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   274d7803837da78dfc911bcda0d593412676fc20
> commit: aa47a7c215e79a2ade6916f163c5a17b561bce4f [7287/11993] lib/cpumask: deprecate nr_cpumask_bits
> config: s390-randconfig-r023-20220926
> compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # install s390 cross compiling tool for clang build
>         # apt-get install binutils-s390x-linux-gnu
>         # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aa47a7c215e79a2ade6916f163c5a17b561bce4f
>         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout aa47a7c215e79a2ade6916f163c5a17b561bce4f
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>    s390x-linux-ld: ipl.c:(.text+0x1004): undefined reference to `__tsan_memcpy'
>    s390x-linux-ld: ipl.c:(.text+0x1046): undefined reference to `__tsan_memset'
>    s390x-linux-ld: arch/s390/kernel/ipl.o: in function `reipl_fcp_scpdata_write':

I can't reproduce the bug. In fact, the build is broken for me on
next-20220930. To make the s390 image somehow building, I commented
out some functions that aren't found by the LD.

Thanks,
Yury

diff --git a/drivers/irqchip/irq-al-fic.c b/drivers/irqchip/irq-al-fic.c
index 886de028a901..d696d78132a0 100644
--- a/drivers/irqchip/irq-al-fic.c
+++ b/drivers/irqchip/irq-al-fic.c
@@ -235,6 +235,7 @@ static struct al_fic *al_fic_wire_init(struct device_node *node,
        return ERR_PTR(ret);
 }

+void __iomem *of_iomap(struct device_node *np, int index);
 static int __init al_fic_init_dt(struct device_node *node,
                                 struct device_node *parent)
 {
@@ -249,7 +250,7 @@ static int __init al_fic_init_dt(struct device_node *node,
                return -EINVAL;
        }

-       base = of_iomap(node, 0);
+       base = NULL;//of_iomap(node, 0);
        if (!base) {
                pr_err("%s: fail to map memory\n", node->name);
                return -ENOMEM;
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 7633b227b2ca..4e4c9d9743bf 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1122,8 +1122,8 @@ static int request_and_map(struct platform_device *pdev, const char *name,
                return -EBUSY;
        }

-       *ptr = devm_ioremap(device, region->start,
-                                   resource_size(region));
+       *ptr = NULL;//devm_ioremap(device, region->start,
+               //                  resource_size(region));
        if (*ptr == NULL) {
                dev_err(device, "ioremap of %s failed!", name);
                return -ENOMEM;
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 230c2d19116d..9f88be3c2b08 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -49,6 +49,7 @@ static bool afs_dir_dirty_folio(struct address_space *mapping,
                struct folio *folio)
 {
        BUG(); /* This should never happen. */
+       return false;
 }

 const struct file_operations afs_dir_file_operations = {
