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Date: Wed, 12 Oct 2022 05:42:12 +0800
From: kernel test robot <lkp@...el.com>
To: Dan Williams <dan.j.williams@...el.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [djbw-nvdimm:libnvdimm-pending 15/24] drivers/dax/mapping.c:60:24:
error: 'PMD_ORDER' undeclared; did you mean 'MAX_ORDER'?
Hi Dan,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git libnvdimm-pending
head: 4a35ce1717f356ac1862763eef5c0220c043637a
commit: 0ad87c01088f4723666daf5e22873efec7b747c3 [15/24] devdax: Move address_space helpers to the DAX core
config: riscv-randconfig-r011-20221010
compiler: riscv64-linux-gcc (GCC) 12.1.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git/commit/?id=0ad87c01088f4723666daf5e22873efec7b747c3
git remote add djbw-nvdimm https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git
git fetch --no-tags djbw-nvdimm libnvdimm-pending
git checkout 0ad87c01088f4723666daf5e22873efec7b747c3
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
drivers/dax/mapping.c: In function 'dax_entry_order':
>> drivers/dax/mapping.c:60:24: error: 'PMD_ORDER' undeclared (first use in this function); did you mean 'MAX_ORDER'?
60 | return PMD_ORDER;
| ^~~~~~~~~
| MAX_ORDER
drivers/dax/mapping.c:60:24: note: each undeclared identifier is reported only once for each function it appears in
drivers/dax/mapping.c: In function 'dax_entry_waitqueue':
>> drivers/dax/mapping.c:128:27: error: 'PG_PMD_COLOUR' undeclared (first use in this function)
128 | index &= ~PG_PMD_COLOUR;
| ^~~~~~~~~~~~~
drivers/dax/mapping.c: In function 'dax_grab_mapping_entry':
drivers/dax/mapping.c:604:62: error: 'PG_PMD_COLOUR' undeclared (first use in this function)
604 | xas->xa_index & ~PG_PMD_COLOUR,
| ^~~~~~~~~~~~~
>> drivers/dax/mapping.c:605:45: error: 'PG_PMD_NR' undeclared (first use in this function); did you mean 'HPAGE_PMD_NR'?
605 | PG_PMD_NR, false);
| ^~~~~~~~~
| HPAGE_PMD_NR
drivers/dax/mapping.c: In function 'dax_insert_entry':
drivers/dax/mapping.c:868:63: error: 'PG_PMD_COLOUR' undeclared (first use in this function)
868 | unmap_mapping_pages(mapping, index & ~PG_PMD_COLOUR,
| ^~~~~~~~~~~~~
drivers/dax/mapping.c:869:41: error: 'PG_PMD_NR' undeclared (first use in this function); did you mean 'HPAGE_PMD_NR'?
869 | PG_PMD_NR, false);
| ^~~~~~~~~
| HPAGE_PMD_NR
drivers/dax/mapping.c: In function 'dax_writeback_one':
>> drivers/dax/mapping.c:980:17: error: implicit declaration of function 'pfn_mkclean_range' [-Werror=implicit-function-declaration]
980 | pfn_mkclean_range(pfn, count, index, vma);
| ^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for DAX
Depends on [n]: MMU [=n]
Selected by [m]:
- BLK_DEV_PMEM [=m] && LIBNVDIMM [=m]
vim +60 drivers/dax/mapping.c
56
57 static unsigned int dax_entry_order(void *entry)
58 {
59 if (xa_to_value(entry) & DAX_PMD)
> 60 return PMD_ORDER;
61 return 0;
62 }
63
64 static unsigned long dax_is_pmd_entry(void *entry)
65 {
66 return xa_to_value(entry) & DAX_PMD;
67 }
68
69 static bool dax_is_pte_entry(void *entry)
70 {
71 return !(xa_to_value(entry) & DAX_PMD);
72 }
73
74 static int dax_is_zero_entry(void *entry)
75 {
76 return xa_to_value(entry) & DAX_ZERO_PAGE;
77 }
78
79 static int dax_is_empty_entry(void *entry)
80 {
81 return xa_to_value(entry) & DAX_EMPTY;
82 }
83
84 /*
85 * true if the entry that was found is of a smaller order than the entry
86 * we were looking for
87 */
88 static bool dax_is_conflict(void *entry)
89 {
90 return entry == XA_RETRY_ENTRY;
91 }
92
93 /*
94 * DAX page cache entry locking
95 */
96 struct exceptional_entry_key {
97 struct xarray *xa;
98 pgoff_t entry_start;
99 };
100
101 struct wait_exceptional_entry_queue {
102 wait_queue_entry_t wait;
103 struct exceptional_entry_key key;
104 };
105
106 /**
107 * enum dax_wake_mode: waitqueue wakeup behaviour
108 * @WAKE_ALL: wake all waiters in the waitqueue
109 * @WAKE_NEXT: wake only the first waiter in the waitqueue
110 */
111 enum dax_wake_mode {
112 WAKE_ALL,
113 WAKE_NEXT,
114 };
115
116 static wait_queue_head_t *dax_entry_waitqueue(struct xa_state *xas, void *entry,
117 struct exceptional_entry_key *key)
118 {
119 unsigned long hash;
120 unsigned long index = xas->xa_index;
121
122 /*
123 * If 'entry' is a PMD, align the 'index' that we use for the wait
124 * queue to the start of that PMD. This ensures that all offsets in
125 * the range covered by the PMD map to the same bit lock.
126 */
127 if (dax_is_pmd_entry(entry))
> 128 index &= ~PG_PMD_COLOUR;
129 key->xa = xas->xa;
130 key->entry_start = index;
131
132 hash = hash_long((unsigned long)xas->xa ^ index, DAX_WAIT_TABLE_BITS);
133 return wait_table + hash;
134 }
135
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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