* [sbates130272-p2pmem:p2pdma_user_cmb_v7 20/21] include/linux/pci-p2pdma.h:99:1: error: non-void function does not return a value
@ 2022-06-09 23:21 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-06-09 23:21 UTC (permalink / raw)
To: Logan Gunthorpe; +Cc: llvm, kbuild-all, linux-kernel
tree: https://github.com/sbates130272/linux-p2pmem.git p2pdma_user_cmb_v7
head: 45dd3bf6fe468175153066cb70820a2b2edbc61b
commit: 54606cc552a950ad3eaa201cd8b1a2d1f2e6abd3 [20/21] PCI/P2PDMA: Introduce pci_mmap_p2pmem()
config: s390-randconfig-r005-20220608 (https://download.01.org/0day-ci/archive/20220610/202206100713.eqeobRjO-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 971e13d69e3e7b687213fef22952be6a328c426c)
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://github.com/sbates130272/linux-p2pmem/commit/54606cc552a950ad3eaa201cd8b1a2d1f2e6abd3
git remote add sbates130272-p2pmem https://github.com/sbates130272/linux-p2pmem.git
git fetch --no-tags sbates130272-p2pmem p2pdma_user_cmb_v7
git checkout 54606cc552a950ad3eaa201cd8b1a2d1f2e6abd3
# 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 drivers/nvme/target/
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 >>):
In file included from drivers/nvme/target/configfs.c:12:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/nvme/target/configfs.c:12:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/nvme/target/configfs.c:12:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
In file included from drivers/nvme/target/configfs.c:13:
>> include/linux/pci-p2pdma.h:99:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
}
^
12 warnings and 1 error generated.
--
In file included from drivers/nvme/target/core.c:10:
In file included from include/linux/pci-p2pdma.h:14:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/nvme/target/core.c:10:
In file included from include/linux/pci-p2pdma.h:14:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/nvme/target/core.c:10:
In file included from include/linux/pci-p2pdma.h:14:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
In file included from drivers/nvme/target/core.c:10:
>> include/linux/pci-p2pdma.h:99:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
}
^
In file included from drivers/nvme/target/core.c:14:
In file included from drivers/nvme/target/trace.h:165:
include/trace/define_trace.h:95:10: fatal error: './trace.h' file not found
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/define_trace.h:90:32: note: expanded from macro 'TRACE_INCLUDE'
# define TRACE_INCLUDE(system) __TRACE_INCLUDE(system)
^~~~~~~~~~~~~~~~~~~~~~~
include/trace/define_trace.h:87:34: note: expanded from macro '__TRACE_INCLUDE'
# define __TRACE_INCLUDE(system) __stringify(TRACE_INCLUDE_PATH/system.h)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/stringify.h:10:27: note: expanded from macro '__stringify'
#define __stringify(x...) __stringify_1(x)
^~~~~~~~~~~~~~~~
include/linux/stringify.h:9:29: note: expanded from macro '__stringify_1'
#define __stringify_1(x...) #x
^~
<scratch space>:87:1: note: expanded from here
"./trace.h"
^~~~~~~~~~~
12 warnings and 2 errors generated.
vim +99 include/linux/pci-p2pdma.h
18
19 #ifdef CONFIG_PCI_P2PDMA
20 int pci_p2pdma_add_resource(struct pci_dev *pdev, int bar, size_t size,
21 u64 offset);
22 int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients,
23 int num_clients, bool verbose);
24 bool pci_has_p2pmem(struct pci_dev *pdev);
25 struct pci_dev *pci_p2pmem_find_many(struct device **clients, int num_clients);
26 void *pci_alloc_p2pmem(struct pci_dev *pdev, size_t size);
27 void pci_free_p2pmem(struct pci_dev *pdev, void *addr, size_t size);
28 pci_bus_addr_t pci_p2pmem_virt_to_bus(struct pci_dev *pdev, void *addr);
29 struct scatterlist *pci_p2pmem_alloc_sgl(struct pci_dev *pdev,
30 unsigned int *nents, u32 length);
31 void pci_p2pmem_free_sgl(struct pci_dev *pdev, struct scatterlist *sgl);
32 void pci_p2pmem_publish(struct pci_dev *pdev, bool publish);
33 int pci_p2pdma_enable_store(const char *page, struct pci_dev **p2p_dev,
34 bool *use_p2pdma);
35 ssize_t pci_p2pdma_enable_show(char *page, struct pci_dev *p2p_dev,
36 bool use_p2pdma);
37 int pci_p2pdma_file_open(struct pci_dev *pdev, struct file *file);
38 void pci_p2pdma_file_release(struct file *file);
39 int pci_mmap_p2pmem(struct pci_dev *pdev, struct vm_area_struct *vma);
40 #else /* CONFIG_PCI_P2PDMA */
41 static inline int pci_p2pdma_add_resource(struct pci_dev *pdev, int bar,
42 size_t size, u64 offset)
43 {
44 return -EOPNOTSUPP;
45 }
46 static inline int pci_p2pdma_distance_many(struct pci_dev *provider,
47 struct device **clients, int num_clients, bool verbose)
48 {
49 return -1;
50 }
51 static inline bool pci_has_p2pmem(struct pci_dev *pdev)
52 {
53 return false;
54 }
55 static inline struct pci_dev *pci_p2pmem_find_many(struct device **clients,
56 int num_clients)
57 {
58 return NULL;
59 }
60 static inline void *pci_alloc_p2pmem(struct pci_dev *pdev, size_t size)
61 {
62 return NULL;
63 }
64 static inline void pci_free_p2pmem(struct pci_dev *pdev, void *addr,
65 size_t size)
66 {
67 }
68 static inline pci_bus_addr_t pci_p2pmem_virt_to_bus(struct pci_dev *pdev,
69 void *addr)
70 {
71 return 0;
72 }
73 static inline struct scatterlist *pci_p2pmem_alloc_sgl(struct pci_dev *pdev,
74 unsigned int *nents, u32 length)
75 {
76 return NULL;
77 }
78 static inline void pci_p2pmem_free_sgl(struct pci_dev *pdev,
79 struct scatterlist *sgl)
80 {
81 }
82 static inline void pci_p2pmem_publish(struct pci_dev *pdev, bool publish)
83 {
84 }
85 static inline int pci_p2pdma_enable_store(const char *page,
86 struct pci_dev **p2p_dev, bool *use_p2pdma)
87 {
88 *use_p2pdma = false;
89 return 0;
90 }
91 static inline ssize_t pci_p2pdma_enable_show(char *page,
92 struct pci_dev *p2p_dev, bool use_p2pdma)
93 {
94 return sprintf(page, "none\n");
95 }
96 static inline int pci_p2pdma_file_open(struct pci_dev *pdev,
97 struct file *file)
98 {
> 99 }
100 static inline void pci_p2pdma_file_release(struct file *file)
101 {
102 }
103 static inline int pci_mmap_p2pmem(struct pci_dev *pdev,
104 struct vm_area_struct *vma)
105 {
106 return -EOPNOTSUPP;
107 }
108 #endif /* CONFIG_PCI_P2PDMA */
109
110
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2022-06-09 23:22 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-09 23:21 [sbates130272-p2pmem:p2pdma_user_cmb_v7 20/21] include/linux/pci-p2pdma.h:99:1: error: non-void function does not return a value kernel test robot
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.