[linux-next:master 6960/11791] drivers/pci/endpoint/functions/pci-epf-ntb.c:2004 epf_ntb_mw1_show() warn: potential spectre issue 'ntb->mws_size'

[linux-next:master 6960/11791] drivers/pci/endpoint/functions/pci-epf-ntb.c:2004 epf_ntb_mw1_show() warn: potential spectre issue 'ntb->mws_size'

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: Linux Memory Management List <linux-mm@kvack.org>
TO: Kishon Vijay Abraham I <kishon@ti.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Ye Bin <yebin10@huawei.com>
CC: Geert Uytterhoeven <geert+renesas@glider.be>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   ff90dfd2579b2c7bc1f0baa0cb99c918c6c1ec64
commit: e9d7f4603e6d9fc70886ebbfad3dbc8cd1adc6d3 [6960/11791] PCI: endpoint: Add EP function driver to provide NTB functionality
:::::: branch date: 11 hours ago
:::::: commit date: 2 weeks ago
config: x86_64-randconfig-m001-20210218 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/pci/endpoint/functions/pci-epf-ntb.c:2004 epf_ntb_mw1_show() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2005 epf_ntb_mw1_store() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2006 epf_ntb_mw2_show() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2007 epf_ntb_mw2_store() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2008 epf_ntb_mw3_show() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2009 epf_ntb_mw3_store() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2010 epf_ntb_mw4_show() warn: potential spectre issue 'ntb->mws_size' [w]
drivers/pci/endpoint/functions/pci-epf-ntb.c:2011 epf_ntb_mw4_store() warn: potential spectre issue 'ntb->mws_size' [w]

vim +2004 drivers/pci/endpoint/functions/pci-epf-ntb.c

e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  1998  
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  1999  EPF_NTB_R(spad_count)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  2000  EPF_NTB_W(spad_count)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  2001  EPF_NTB_R(db_count)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  2002  EPF_NTB_W(db_count)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  2003  EPF_NTB_R(num_mws)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2004  EPF_NTB_MW_R(mw1)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2005  EPF_NTB_MW_W(mw1)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2006  EPF_NTB_MW_R(mw2)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2007  EPF_NTB_MW_W(mw2)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2008  EPF_NTB_MW_R(mw3)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2009  EPF_NTB_MW_W(mw3)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2010  EPF_NTB_MW_R(mw4)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02 @2011  EPF_NTB_MW_W(mw4)
e9d7f4603e6d9f Kishon Vijay Abraham I 2021-02-02  2012  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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