Hi Alex, First bad commit (maybe != root cause): tree: https://github.com/ceph/ceph-client.git tls_logger head: cd1e899feeb6a7da55cbb74b9245c8bbb77f82ba commit: a85b831a9a8fcd3420c8a0b8c0c56b608acad771 [3/13] cephsan: moving libceph config: i386-buildonly-randconfig-001-20250213 (https://download.01.org/0day-ci/archive/20250213/202502131328.J5Q1ZaRE-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250213/202502131328.J5Q1ZaRE-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502131328.J5Q1ZaRE-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> net/ceph/ceph_san.c:100: warning: Function parameter or struct member 'pf' not described in 'cephsan_pagefrag_init' >> net/ceph/ceph_san.c:121: warning: Function parameter or struct member 'pf' not described in 'cephsan_pagefrag_alloc' >> net/ceph/ceph_san.c:162: warning: Function parameter or struct member 'pf' not described in 'cephsan_pagefrag_free' >> net/ceph/ceph_san.c:172: warning: Function parameter or struct member 'pf' not described in 'cephsan_pagefrag_deinit' vim +100 net/ceph/ceph_san.c 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 90 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 91 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 92 /** 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 93 * cephsan_pagefrag_init - Initialize the pagefrag allocator. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 94 * 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 95 * Allocates a 16KB contiguous buffer and resets head and tail pointers. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 96 * 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 97 * Return: 0 on success, negative error code on failure. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 98 */ a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 99 int cephsan_pagefrag_init(struct cephsan_pagefrag *pf) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 @100 { 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 101 pf->buffer = kmalloc(CEPHSAN_PAGEFRAG_SIZE, GFP_KERNEL); 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 102 if (!pf->buffer) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 103 return -ENOMEM; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 104 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 105 pf->head = 0; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 106 pf->tail = 0; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 107 return 0; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 108 } a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 109 EXPORT_SYMBOL(cephsan_pagefrag_init); 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 110 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 111 /** 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 112 * cephsan_pagefrag_alloc - Allocate bytes from the pagefrag buffer. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 113 * @n: number of bytes to allocate. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 114 * 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 115 * Allocates @n bytes if there is sufficient free space in the buffer. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 116 * Advances the head pointer by @n bytes (wrapping around if needed). 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 117 * 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 118 * Return: pointer to the allocated memory, or NULL if not enough space. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 119 */ a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 120 u64 cephsan_pagefrag_alloc(struct cephsan_pagefrag *pf, unsigned int n) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 @121 { 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 122 unsigned int used, free_space, remaining; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 123 void *ptr; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 124 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 125 /* Compute usage in the circular buffer */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 126 if (pf->head >= pf->tail) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 127 used = pf->head - pf->tail; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 128 else 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 129 used = CEPHSAN_PAGEFRAG_SIZE - pf->tail + pf->head; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 130 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 131 free_space = CEPHSAN_PAGEFRAG_SIZE - used; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 132 if (n > free_space) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 133 return 0; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 134 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 135 /* Check if allocation would wrap around buffer end */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 136 if (pf->head + n > CEPHSAN_PAGEFRAG_SIZE) { 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 137 /* Calculate bytes remaining until buffer end */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 138 remaining = CEPHSAN_PAGEFRAG_SIZE - pf->head; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 139 /* Move tail to start if needed */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 140 if (pf->tail < n - remaining) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 141 pf->tail = 0; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 142 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 143 /* Return pointer to new head at buffer start */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 144 ptr = pf->buffer; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 145 pf->head = n - remaining; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 146 } else { 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 147 /* No wrap around needed */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 148 ptr = (char *)pf->buffer + pf->head; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 149 pf->head += n; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 150 } 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 151 /* Return combined u64 with buffer index in lower 32 bits and size in upper 32 bits */ 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 152 return ((u64)(n) << 32) | (ptr - pf->buffer); 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 153 } a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 154 EXPORT_SYMBOL(cephsan_pagefrag_alloc); 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 155 /** 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 156 * cephsan_pagefrag_free - Free bytes in the pagefrag allocator. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 157 * @n: number of bytes to free. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 158 * 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 159 * Advances the tail pointer by @n bytes (wrapping around if needed). 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 160 */ a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 161 void cephsan_pagefrag_free(struct cephsan_pagefrag *pf, unsigned int n) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 @162 { 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 163 pf->tail = (pf->tail + n) % CEPHSAN_PAGEFRAG_SIZE; 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 164 } a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 165 EXPORT_SYMBOL(cephsan_pagefrag_free); 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 166 /** 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 167 * cephsan_pagefrag_deinit - Deinitialize the pagefrag allocator. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 168 * 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 169 * Frees the allocated buffer and resets the head and tail pointers. 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 170 */ a85b831a9a8fcd3 net/ceph/ceph_san.c Alex Markuze 2025-02-11 171 void cephsan_pagefrag_deinit(struct cephsan_pagefrag *pf) 04fa82972277cd8 fs/ceph/ceph_san.c Alex Markuze 2025-02-11 @172 { :::::: The code at line 100 was first introduced by commit :::::: 04fa82972277cd879d1bcb1efe97bbe1c53cd104 cephsan: a full string printout :::::: TO: Alex Markuze <amarkuze@xxxxxxxxxx> :::::: CC: Alex Markuze <amarkuze@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
