From: kernel test robot <lkp@intel.com> To: Rishabh Bhatnagar <rishabhb@codeaurora.org>, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: kbuild-all@lists.01.org, bjorn.andersson@linaro.org, mathieu.poirier@linaro.org, tsoni@codeaurora.org, psodagud@codeaurora.org, sidgup@codeaurora.org, Rishabh Bhatnagar <rishabhb@codeaurora.org> Subject: Re: [PATCH v5 2/3] remoteproc: Add inline coredump functionality Date: Wed, 24 Jun 2020 14:26:09 +0800 [thread overview] Message-ID: <202006241427.w0wMOEr7%lkp@intel.com> (raw) In-Reply-To: <1592961854-634-3-git-send-email-rishabhb@codeaurora.org> [-- Attachment #1: Type: text/plain, Size: 9363 bytes --] Hi Rishabh, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linux/master] [also build test WARNING on linus/master v5.8-rc2 next-20200623] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Rishabh-Bhatnagar/Extend-coredump-functionality/20200624-092759 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5e857ce6eae7ca21b2055cca4885545e29228fe2 config: arc-allyesconfig (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com> All warnings (new ones prefixed by >>): In file included from include/linux/device.h:15, from include/linux/devcoredump.h:8, from drivers/remoteproc/remoteproc_coredump.c:9: drivers/remoteproc/remoteproc_coredump.c: In function 'rproc_copy_segment': >> drivers/remoteproc/remoteproc_coredump.c:163:5: warning: format '%zu' expects argument of type 'size_t', but argument 3 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=] 163 | "invalid copy request (%zu, %zu)\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ >> drivers/remoteproc/remoteproc_coredump.c:162:4: note: in expansion of macro 'dev_err' 162 | dev_err(&rproc->dev, | ^~~~~~~ drivers/remoteproc/remoteproc_coredump.c:163:30: note: format string is defined here 163 | "invalid copy request (%zu, %zu)\n", | ~~^ | | | unsigned int | %llu drivers/remoteproc/remoteproc_coredump.c: In function 'rproc_coredump_read': >> drivers/remoteproc/remoteproc_coredump.c:186:15: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 186 | if (copy_sz < 0) | ^ vim +163 drivers/remoteproc/remoteproc_coredump.c > 9 #include <linux/devcoredump.h> 10 #include <linux/device.h> 11 #include <linux/kernel.h> 12 #include <linux/remoteproc.h> 13 #include "remoteproc_internal.h" 14 #include "remoteproc_elf_helpers.h" 15 16 struct rproc_coredump_state { 17 struct rproc *rproc; 18 void *header; 19 struct completion dump_done; 20 }; 21 22 /** 23 * rproc_coredump_cleanup() - clean up dump_segments list 24 * @rproc: the remote processor handle 25 */ 26 void rproc_coredump_cleanup(struct rproc *rproc) 27 { 28 struct rproc_dump_segment *entry, *tmp; 29 30 list_for_each_entry_safe(entry, tmp, &rproc->dump_segments, node) { 31 list_del(&entry->node); 32 kfree(entry); 33 } 34 } 35 36 /** 37 * rproc_coredump_add_segment() - add segment of device memory to coredump 38 * @rproc: handle of a remote processor 39 * @da: device address 40 * @size: size of segment 41 * 42 * Add device memory to the list of segments to be included in a coredump for 43 * the remoteproc. 44 * 45 * Return: 0 on success, negative errno on error. 46 */ 47 int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size) 48 { 49 struct rproc_dump_segment *segment; 50 51 segment = kzalloc(sizeof(*segment), GFP_KERNEL); 52 if (!segment) 53 return -ENOMEM; 54 55 segment->da = da; 56 segment->size = size; 57 58 list_add_tail(&segment->node, &rproc->dump_segments); 59 60 return 0; 61 } 62 EXPORT_SYMBOL(rproc_coredump_add_segment); 63 64 /** 65 * rproc_coredump_add_custom_segment() - add custom coredump segment 66 * @rproc: handle of a remote processor 67 * @da: device address 68 * @size: size of segment 69 * @dumpfn: custom dump function called for each segment during coredump 70 * @priv: private data 71 * 72 * Add device memory to the list of segments to be included in the coredump 73 * and associate the segment with the given custom dump function and private 74 * data. 75 * 76 * Return: 0 on success, negative errno on error. 77 */ 78 int rproc_coredump_add_custom_segment(struct rproc *rproc, 79 dma_addr_t da, size_t size, 80 void (*dumpfn)(struct rproc *rproc, 81 struct rproc_dump_segment *segment, 82 void *dest, size_t offset, 83 size_t size), 84 void *priv) 85 { 86 struct rproc_dump_segment *segment; 87 88 segment = kzalloc(sizeof(*segment), GFP_KERNEL); 89 if (!segment) 90 return -ENOMEM; 91 92 segment->da = da; 93 segment->size = size; 94 segment->priv = priv; 95 segment->dump = dumpfn; 96 97 list_add_tail(&segment->node, &rproc->dump_segments); 98 99 return 0; 100 } 101 EXPORT_SYMBOL(rproc_coredump_add_custom_segment); 102 103 /** 104 * rproc_coredump_set_elf_info() - set coredump elf information 105 * @rproc: handle of a remote processor 106 * @class: elf class for coredump elf file 107 * @machine: elf machine for coredump elf file 108 * 109 * Set elf information which will be used for coredump elf file. 110 * 111 * Return: 0 on success, negative errno on error. 112 */ 113 int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine) 114 { 115 if (class != ELFCLASS64 && class != ELFCLASS32) 116 return -EINVAL; 117 118 rproc->elf_class = class; 119 rproc->elf_machine = machine; 120 121 return 0; 122 } 123 EXPORT_SYMBOL(rproc_coredump_set_elf_info); 124 125 static void rproc_coredump_free(void *data) 126 { 127 struct rproc_coredump_state *dump_state = data; 128 129 complete(&dump_state->dump_done); 130 vfree(dump_state->header); 131 } 132 133 static void *rproc_coredump_find_segment(loff_t user_offset, 134 struct list_head *segments, 135 size_t *data_left) 136 { 137 struct rproc_dump_segment *segment; 138 139 list_for_each_entry(segment, segments, node) { 140 if (user_offset < segment->size) { 141 *data_left = segment->size - user_offset; 142 return segment; 143 } 144 user_offset -= segment->size; 145 } 146 147 *data_left = 0; 148 return NULL; 149 } 150 151 static void rproc_copy_segment(struct rproc *rproc, void *dest, 152 struct rproc_dump_segment *segment, 153 size_t offset, size_t size) 154 { 155 void *ptr; 156 157 if (segment->dump) { 158 segment->dump(rproc, segment, dest, offset, size); 159 } else { 160 ptr = rproc_da_to_va(rproc, segment->da + offset, size); 161 if (!ptr) { > 162 dev_err(&rproc->dev, > 163 "invalid copy request (%zu, %zu)\n", 164 segment->da + offset, size); 165 memset(dest, 0xff, size); 166 } else { 167 memcpy(dest, ptr, size); 168 } 169 } 170 } 171 172 static ssize_t rproc_coredump_read(char *buffer, loff_t offset, size_t count, 173 void *data, size_t header_sz) 174 { 175 size_t seg_data; 176 size_t copy_sz, bytes_left = count; 177 struct rproc_dump_segment *seg; 178 struct rproc_coredump_state *dump_state = data; 179 struct rproc *rproc = dump_state->rproc; 180 void *elfcore = dump_state->header; 181 182 /* Copy the vmalloc'ed header first. */ 183 if (offset < header_sz) { 184 copy_sz = memory_read_from_buffer(buffer, count, &offset, 185 elfcore, header_sz); > 186 if (copy_sz < 0) 187 return -EINVAL; 188 189 return copy_sz; 190 } 191 192 /* 193 * Find out the segment memory chunk to be copied based on offset. 194 * Keep copying data until count bytes are read. 195 */ 196 while (bytes_left) { 197 seg = rproc_coredump_find_segment(offset - header_sz, 198 &rproc->dump_segments, 199 &seg_data); 200 /* EOF check */ 201 if (!seg) { 202 dev_info(&rproc->dev, "Ramdump done, %lld bytes read", 203 offset); 204 break; 205 } 206 207 copy_sz = min_t(size_t, bytes_left, seg_data); 208 209 rproc_copy_segment(rproc, buffer, seg, seg->size - seg_data, 210 copy_sz); 211 212 offset += copy_sz; 213 buffer += copy_sz; 214 bytes_left -= copy_sz; 215 } 216 217 return count - bytes_left; 218 } 219 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org [-- Attachment #2: .config.gz --] [-- Type: application/gzip, Size: 64629 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com> To: kbuild-all@lists.01.org Subject: Re: [PATCH v5 2/3] remoteproc: Add inline coredump functionality Date: Wed, 24 Jun 2020 14:26:09 +0800 [thread overview] Message-ID: <202006241427.w0wMOEr7%lkp@intel.com> (raw) In-Reply-To: <1592961854-634-3-git-send-email-rishabhb@codeaurora.org> [-- Attachment #1: Type: text/plain, Size: 9631 bytes --] Hi Rishabh, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linux/master] [also build test WARNING on linus/master v5.8-rc2 next-20200623] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Rishabh-Bhatnagar/Extend-coredump-functionality/20200624-092759 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5e857ce6eae7ca21b2055cca4885545e29228fe2 config: arc-allyesconfig (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com> All warnings (new ones prefixed by >>): In file included from include/linux/device.h:15, from include/linux/devcoredump.h:8, from drivers/remoteproc/remoteproc_coredump.c:9: drivers/remoteproc/remoteproc_coredump.c: In function 'rproc_copy_segment': >> drivers/remoteproc/remoteproc_coredump.c:163:5: warning: format '%zu' expects argument of type 'size_t', but argument 3 has type 'dma_addr_t' {aka 'long long unsigned int'} [-Wformat=] 163 | "invalid copy request (%zu, %zu)\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ >> drivers/remoteproc/remoteproc_coredump.c:162:4: note: in expansion of macro 'dev_err' 162 | dev_err(&rproc->dev, | ^~~~~~~ drivers/remoteproc/remoteproc_coredump.c:163:30: note: format string is defined here 163 | "invalid copy request (%zu, %zu)\n", | ~~^ | | | unsigned int | %llu drivers/remoteproc/remoteproc_coredump.c: In function 'rproc_coredump_read': >> drivers/remoteproc/remoteproc_coredump.c:186:15: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 186 | if (copy_sz < 0) | ^ vim +163 drivers/remoteproc/remoteproc_coredump.c > 9 #include <linux/devcoredump.h> 10 #include <linux/device.h> 11 #include <linux/kernel.h> 12 #include <linux/remoteproc.h> 13 #include "remoteproc_internal.h" 14 #include "remoteproc_elf_helpers.h" 15 16 struct rproc_coredump_state { 17 struct rproc *rproc; 18 void *header; 19 struct completion dump_done; 20 }; 21 22 /** 23 * rproc_coredump_cleanup() - clean up dump_segments list 24 * @rproc: the remote processor handle 25 */ 26 void rproc_coredump_cleanup(struct rproc *rproc) 27 { 28 struct rproc_dump_segment *entry, *tmp; 29 30 list_for_each_entry_safe(entry, tmp, &rproc->dump_segments, node) { 31 list_del(&entry->node); 32 kfree(entry); 33 } 34 } 35 36 /** 37 * rproc_coredump_add_segment() - add segment of device memory to coredump 38 * @rproc: handle of a remote processor 39 * @da: device address 40 * @size: size of segment 41 * 42 * Add device memory to the list of segments to be included in a coredump for 43 * the remoteproc. 44 * 45 * Return: 0 on success, negative errno on error. 46 */ 47 int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size) 48 { 49 struct rproc_dump_segment *segment; 50 51 segment = kzalloc(sizeof(*segment), GFP_KERNEL); 52 if (!segment) 53 return -ENOMEM; 54 55 segment->da = da; 56 segment->size = size; 57 58 list_add_tail(&segment->node, &rproc->dump_segments); 59 60 return 0; 61 } 62 EXPORT_SYMBOL(rproc_coredump_add_segment); 63 64 /** 65 * rproc_coredump_add_custom_segment() - add custom coredump segment 66 * @rproc: handle of a remote processor 67 * @da: device address 68 * @size: size of segment 69 * @dumpfn: custom dump function called for each segment during coredump 70 * @priv: private data 71 * 72 * Add device memory to the list of segments to be included in the coredump 73 * and associate the segment with the given custom dump function and private 74 * data. 75 * 76 * Return: 0 on success, negative errno on error. 77 */ 78 int rproc_coredump_add_custom_segment(struct rproc *rproc, 79 dma_addr_t da, size_t size, 80 void (*dumpfn)(struct rproc *rproc, 81 struct rproc_dump_segment *segment, 82 void *dest, size_t offset, 83 size_t size), 84 void *priv) 85 { 86 struct rproc_dump_segment *segment; 87 88 segment = kzalloc(sizeof(*segment), GFP_KERNEL); 89 if (!segment) 90 return -ENOMEM; 91 92 segment->da = da; 93 segment->size = size; 94 segment->priv = priv; 95 segment->dump = dumpfn; 96 97 list_add_tail(&segment->node, &rproc->dump_segments); 98 99 return 0; 100 } 101 EXPORT_SYMBOL(rproc_coredump_add_custom_segment); 102 103 /** 104 * rproc_coredump_set_elf_info() - set coredump elf information 105 * @rproc: handle of a remote processor 106 * @class: elf class for coredump elf file 107 * @machine: elf machine for coredump elf file 108 * 109 * Set elf information which will be used for coredump elf file. 110 * 111 * Return: 0 on success, negative errno on error. 112 */ 113 int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine) 114 { 115 if (class != ELFCLASS64 && class != ELFCLASS32) 116 return -EINVAL; 117 118 rproc->elf_class = class; 119 rproc->elf_machine = machine; 120 121 return 0; 122 } 123 EXPORT_SYMBOL(rproc_coredump_set_elf_info); 124 125 static void rproc_coredump_free(void *data) 126 { 127 struct rproc_coredump_state *dump_state = data; 128 129 complete(&dump_state->dump_done); 130 vfree(dump_state->header); 131 } 132 133 static void *rproc_coredump_find_segment(loff_t user_offset, 134 struct list_head *segments, 135 size_t *data_left) 136 { 137 struct rproc_dump_segment *segment; 138 139 list_for_each_entry(segment, segments, node) { 140 if (user_offset < segment->size) { 141 *data_left = segment->size - user_offset; 142 return segment; 143 } 144 user_offset -= segment->size; 145 } 146 147 *data_left = 0; 148 return NULL; 149 } 150 151 static void rproc_copy_segment(struct rproc *rproc, void *dest, 152 struct rproc_dump_segment *segment, 153 size_t offset, size_t size) 154 { 155 void *ptr; 156 157 if (segment->dump) { 158 segment->dump(rproc, segment, dest, offset, size); 159 } else { 160 ptr = rproc_da_to_va(rproc, segment->da + offset, size); 161 if (!ptr) { > 162 dev_err(&rproc->dev, > 163 "invalid copy request (%zu, %zu)\n", 164 segment->da + offset, size); 165 memset(dest, 0xff, size); 166 } else { 167 memcpy(dest, ptr, size); 168 } 169 } 170 } 171 172 static ssize_t rproc_coredump_read(char *buffer, loff_t offset, size_t count, 173 void *data, size_t header_sz) 174 { 175 size_t seg_data; 176 size_t copy_sz, bytes_left = count; 177 struct rproc_dump_segment *seg; 178 struct rproc_coredump_state *dump_state = data; 179 struct rproc *rproc = dump_state->rproc; 180 void *elfcore = dump_state->header; 181 182 /* Copy the vmalloc'ed header first. */ 183 if (offset < header_sz) { 184 copy_sz = memory_read_from_buffer(buffer, count, &offset, 185 elfcore, header_sz); > 186 if (copy_sz < 0) 187 return -EINVAL; 188 189 return copy_sz; 190 } 191 192 /* 193 * Find out the segment memory chunk to be copied based on offset. 194 * Keep copying data until count bytes are read. 195 */ 196 while (bytes_left) { 197 seg = rproc_coredump_find_segment(offset - header_sz, 198 &rproc->dump_segments, 199 &seg_data); 200 /* EOF check */ 201 if (!seg) { 202 dev_info(&rproc->dev, "Ramdump done, %lld bytes read", 203 offset); 204 break; 205 } 206 207 copy_sz = min_t(size_t, bytes_left, seg_data); 208 209 rproc_copy_segment(rproc, buffer, seg, seg->size - seg_data, 210 copy_sz); 211 212 offset += copy_sz; 213 buffer += copy_sz; 214 bytes_left -= copy_sz; 215 } 216 217 return count - bytes_left; 218 } 219 --- 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: 64629 bytes --]
next prev parent reply other threads:[~2020-06-24 6:43 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-24 1:24 [PATCH v5 0/3] Extend coredump functionality Rishabh Bhatnagar 2020-06-24 1:24 ` [PATCH v5 1/3] remoteproc: Move coredump functionality to a new file Rishabh Bhatnagar 2020-06-24 1:24 ` [PATCH v5 2/3] remoteproc: Add inline coredump functionality Rishabh Bhatnagar 2020-06-24 6:26 ` kernel test robot [this message] 2020-06-24 6:26 ` kernel test robot 2020-06-24 10:26 ` kernel test robot 2020-06-24 10:26 ` kernel test robot 2020-06-25 18:33 ` kernel test robot 2020-06-25 18:33 ` kernel test robot 2020-06-24 1:24 ` [PATCH v5 3/3] remoteproc: Add coredump debugfs entry Rishabh Bhatnagar
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=202006241427.w0wMOEr7%lkp@intel.com \ --to=lkp@intel.com \ --cc=bjorn.andersson@linaro.org \ --cc=kbuild-all@lists.01.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-remoteproc@vger.kernel.org \ --cc=mathieu.poirier@linaro.org \ --cc=psodagud@codeaurora.org \ --cc=rishabhb@codeaurora.org \ --cc=sidgup@codeaurora.org \ --cc=tsoni@codeaurora.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
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.