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* drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
@ 2021-08-25  6:56 kernel test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kernel test robot @ 2021-08-25  6:56 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 3893 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6e764bcd1cf72a2846c0e53d3975a09b242c04c9
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   4 months ago
:::::: branch date: 14 hours ago
:::::: commit date: 4 months ago
config: x86_64-randconfig-m001-20210824 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 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/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:376 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_uc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:384 opa_vnic_get_sc() warn: possible spectre second half.  'sc'

vim +374 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c

7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  361  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  362  /* opa_vnic_get_sc - return the service class */
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  363  static u8 opa_vnic_get_sc(struct __opa_veswport_info *info,
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  364  			  struct sk_buff *skb)
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  365  {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  366  	struct ethhdr *mac_hdr = (struct ethhdr *)skb_mac_header(skb);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  367  	u16 vlan_tci;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  368  	u8 sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  369  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  370  	if (!__vlan_get_tag(skb, &vlan_tci)) {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  371  		u8 pcp = OPA_VNIC_VLAN_PCP(vlan_tci);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  372  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  373  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @374  			sc = info->vport.pcp_to_sc_mc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  375  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @376  			sc = info->vport.pcp_to_sc_uc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  377  	} else {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  378  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  379  			sc = info->vport.non_vlan_sc_mc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  380  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  381  			sc = info->vport.non_vlan_sc_uc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  382  	}
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  383  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @384  	return sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  385  }
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  386  

:::::: The code at line 374 was first introduced by commit
:::::: 7d6f728c677e9d01b42d3cc9eb9ef40a2de92ea3 IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev

:::::: TO: Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>
:::::: CC: Doug Ledford <dledford@redhat.com>

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 36158 bytes --]

^ permalink raw reply	[flat|nested] 6+ messages in thread
* drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
@ 2022-02-07 14:26 kernel test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kernel test robot @ 2022-02-07 14:26 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 3965 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dfd42facf1e4ada021b939b4e19c935dcdd55566
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   9 months ago
:::::: branch date: 18 hours ago
:::::: commit date: 9 months ago
config: x86_64-randconfig-m001-20220207 (https://download.01.org/0day-ci/archive/20220207/202202072248.AsWTLOdA-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 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/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:376 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_uc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:384 opa_vnic_get_sc() warn: possible spectre second half.  'sc'

vim +374 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c

7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  361  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  362  /* opa_vnic_get_sc - return the service class */
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  363  static u8 opa_vnic_get_sc(struct __opa_veswport_info *info,
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  364  			  struct sk_buff *skb)
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  365  {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  366  	struct ethhdr *mac_hdr = (struct ethhdr *)skb_mac_header(skb);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  367  	u16 vlan_tci;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  368  	u8 sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  369  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  370  	if (!__vlan_get_tag(skb, &vlan_tci)) {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  371  		u8 pcp = OPA_VNIC_VLAN_PCP(vlan_tci);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  372  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  373  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @374  			sc = info->vport.pcp_to_sc_mc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  375  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @376  			sc = info->vport.pcp_to_sc_uc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  377  	} else {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  378  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  379  			sc = info->vport.non_vlan_sc_mc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  380  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  381  			sc = info->vport.non_vlan_sc_uc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  382  	}
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  383  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @384  	return sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  385  }
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  386  

:::::: The code at line 374 was first introduced by commit
:::::: 7d6f728c677e9d01b42d3cc9eb9ef40a2de92ea3 IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev

:::::: TO: Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>
:::::: CC: Doug Ledford <dledford@redhat.com>

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

^ permalink raw reply	[flat|nested] 6+ messages in thread
* drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
@ 2021-11-24 19:27 kernel test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kernel test robot @ 2021-11-24 19:27 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 4053 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5d9f4cf36721aba199975a9be7863a3ff5cd4b59
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   7 months ago
:::::: branch date: 21 hours ago
:::::: commit date: 7 months ago
config: x86_64-randconfig-m001-20211122 (https://download.01.org/0day-ci/archive/20211125/202111250317.6hp6SBin-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 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/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:376 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_uc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:384 opa_vnic_get_sc() warn: possible spectre second half.  'sc'
drivers/infiniband/sw/siw/iwarp.h:114 __ddp_get_version() warn: mask and shift to zero

vim +374 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c

7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  361  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  362  /* opa_vnic_get_sc - return the service class */
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  363  static u8 opa_vnic_get_sc(struct __opa_veswport_info *info,
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  364  			  struct sk_buff *skb)
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  365  {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  366  	struct ethhdr *mac_hdr = (struct ethhdr *)skb_mac_header(skb);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  367  	u16 vlan_tci;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  368  	u8 sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  369  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  370  	if (!__vlan_get_tag(skb, &vlan_tci)) {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  371  		u8 pcp = OPA_VNIC_VLAN_PCP(vlan_tci);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  372  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  373  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @374  			sc = info->vport.pcp_to_sc_mc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  375  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @376  			sc = info->vport.pcp_to_sc_uc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  377  	} else {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  378  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  379  			sc = info->vport.non_vlan_sc_mc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  380  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  381  			sc = info->vport.non_vlan_sc_uc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  382  	}
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  383  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @384  	return sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  385  }
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  386  

:::::: The code at line 374 was first introduced by commit
:::::: 7d6f728c677e9d01b42d3cc9eb9ef40a2de92ea3 IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev

:::::: TO: Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>
:::::: CC: Doug Ledford <dledford@redhat.com>

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

^ permalink raw reply	[flat|nested] 6+ messages in thread
* drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
@ 2021-11-23  2:13 kernel test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kernel test robot @ 2021-11-23  2:13 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 3981 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   136057256686de39cc3a07c2e39ef6bc43003ff6
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   7 months ago
:::::: branch date: 28 hours ago
:::::: commit date: 7 months ago
config: x86_64-randconfig-m001-20211122 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 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/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:376 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_uc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:384 opa_vnic_get_sc() warn: possible spectre second half.  'sc'
drivers/infiniband/sw/siw/iwarp.h:114 __ddp_get_version() warn: mask and shift to zero

vim +374 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c

7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  361  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  362  /* opa_vnic_get_sc - return the service class */
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  363  static u8 opa_vnic_get_sc(struct __opa_veswport_info *info,
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  364  			  struct sk_buff *skb)
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  365  {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  366  	struct ethhdr *mac_hdr = (struct ethhdr *)skb_mac_header(skb);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  367  	u16 vlan_tci;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  368  	u8 sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  369  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  370  	if (!__vlan_get_tag(skb, &vlan_tci)) {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  371  		u8 pcp = OPA_VNIC_VLAN_PCP(vlan_tci);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  372  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  373  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @374  			sc = info->vport.pcp_to_sc_mc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  375  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @376  			sc = info->vport.pcp_to_sc_uc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  377  	} else {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  378  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  379  			sc = info->vport.non_vlan_sc_mc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  380  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  381  			sc = info->vport.non_vlan_sc_uc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  382  	}
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  383  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @384  	return sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  385  }
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  386  

:::::: The code at line 374 was first introduced by commit
:::::: 7d6f728c677e9d01b42d3cc9eb9ef40a2de92ea3 IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev

:::::: TO: Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>
:::::: CC: Doug Ledford <dledford@redhat.com>

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

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 34459 bytes --]

^ permalink raw reply	[flat|nested] 6+ messages in thread
* drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
@ 2021-11-11 20:48 kernel test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kernel test robot @ 2021-11-11 20:48 UTC (permalink / raw)
  To: kbuild

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   debe436e77c72fcee804fb867f275e6d31aa999c
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   7 months ago
:::::: branch date: 20 hours ago
:::::: commit date: 7 months ago
config: x86_64-randconfig-m001-20211010 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 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/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:376 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_uc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:384 opa_vnic_get_sc() warn: possible spectre second half.  'sc'

vim +374 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c

7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  361  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  362  /* opa_vnic_get_sc - return the service class */
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  363  static u8 opa_vnic_get_sc(struct __opa_veswport_info *info,
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  364  			  struct sk_buff *skb)
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  365  {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  366  	struct ethhdr *mac_hdr = (struct ethhdr *)skb_mac_header(skb);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  367  	u16 vlan_tci;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  368  	u8 sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  369  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  370  	if (!__vlan_get_tag(skb, &vlan_tci)) {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  371  		u8 pcp = OPA_VNIC_VLAN_PCP(vlan_tci);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  372  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  373  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @374  			sc = info->vport.pcp_to_sc_mc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  375  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @376  			sc = info->vport.pcp_to_sc_uc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  377  	} else {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  378  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  379  			sc = info->vport.non_vlan_sc_mc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  380  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  381  			sc = info->vport.non_vlan_sc_uc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  382  	}
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  383  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @384  	return sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  385  }
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  386  

:::::: The code at line 374 was first introduced by commit
:::::: 7d6f728c677e9d01b42d3cc9eb9ef40a2de92ea3 IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev

:::::: TO: Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>
:::::: CC: Doug Ledford <dledford@redhat.com>

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

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
@ 2021-06-23  1:01 kernel test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kernel test robot @ 2021-06-23  1:01 UTC (permalink / raw)
  To: kbuild

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0c18f29aae7ce3dadd26d8ee3505d07cc982df75
commit: d991bb1c8da842a2a0b9dc83b1005e655783f861 include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
date:   8 weeks ago
:::::: branch date: 7 hours ago
:::::: commit date: 8 weeks ago
config: x86_64-randconfig-m001-20210622 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 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/infiniband/ulp/opa_vnic/opa_vnic_encap.c:374 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_mc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:376 opa_vnic_get_sc() warn: potential spectre issue 'info->vport.pcp_to_sc_uc' [r]
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c:384 opa_vnic_get_sc() warn: possible spectre second half.  'sc'
drivers/infiniband/sw/siw/iwarp.h:114 __ddp_get_version() warn: mask and shift to zero

vim +374 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c

7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  361  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  362  /* opa_vnic_get_sc - return the service class */
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  363  static u8 opa_vnic_get_sc(struct __opa_veswport_info *info,
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  364  			  struct sk_buff *skb)
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  365  {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  366  	struct ethhdr *mac_hdr = (struct ethhdr *)skb_mac_header(skb);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  367  	u16 vlan_tci;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  368  	u8 sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  369  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  370  	if (!__vlan_get_tag(skb, &vlan_tci)) {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  371  		u8 pcp = OPA_VNIC_VLAN_PCP(vlan_tci);
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  372  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  373  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @374  			sc = info->vport.pcp_to_sc_mc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  375  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @376  			sc = info->vport.pcp_to_sc_uc[pcp];
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  377  	} else {
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  378  		if (is_multicast_ether_addr(mac_hdr->h_dest))
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  379  			sc = info->vport.non_vlan_sc_mc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  380  		else
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  381  			sc = info->vport.non_vlan_sc_uc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  382  	}
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  383  
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12 @384  	return sc;
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  385  }
7d6f728c677e9d Vishwanathapura, Niranjana 2017-04-12  386  

:::::: The code at line 374 was first introduced by commit
:::::: 7d6f728c677e9d01b42d3cc9eb9ef40a2de92ea3 IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdev

:::::: TO: Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com>
:::::: CC: Doug Ledford <dledford@redhat.com>

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

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^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-02-07 14:26 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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