* arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-07-03 13:01 ` Dan Carpenter
0 siblings, 0 replies; 10+ messages in thread
From: kernel test robot @ 2021-07-03 2:05 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 7930 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Rob Herring <robh@kernel.org>
CC: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
CC: Thiago Jung Bauermann <bauerman@linux.ibm.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d6b63b5b7d7f363c6a54421533791e9849adf2e0
commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
date: 4 months ago
:::::: branch date: 4 hours ago
:::::: commit date: 4 months ago
config: arm64-randconfig-m031-20210702 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 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:
arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
3751e728cef290 AKASHI Takahiro 2019-12-16 75
108aa503657ee2 Benjamin Gwin 2020-11-03 76 /*
108aa503657ee2 Benjamin Gwin 2020-11-03 77 * Tries to add the initrd and DTB to the image. If it is not possible to find
108aa503657ee2 Benjamin Gwin 2020-11-03 78 * valid locations, this function will undo changes to the image and return non
108aa503657ee2 Benjamin Gwin 2020-11-03 79 * zero.
108aa503657ee2 Benjamin Gwin 2020-11-03 80 */
52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 92
52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
52b2a8af743604 AKASHI Takahiro 2018-11-15 96
3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
3751e728cef290 AKASHI Takahiro 2019-12-16 104
3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
3751e728cef290 AKASHI Takahiro 2019-12-16 112
3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 121
3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
3751e728cef290 AKASHI Takahiro 2019-12-16 125
52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
52b2a8af743604 AKASHI Takahiro 2018-11-15 137
52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
52b2a8af743604 AKASHI Takahiro 2018-11-15 142
52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
52b2a8af743604 AKASHI Takahiro 2018-11-15 146
52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
:::::: The code at line 152 was first introduced by commit
:::::: 52b2a8af7436044cfcb27e4b0f72c2ce1f3890da arm64: kexec_file: load initrd and device-tree
:::::: TO: AKASHI Takahiro <takahiro.akashi@linaro.org>
:::::: CC: Will Deacon <will.deacon@arm.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: 38475 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-07-03 13:01 ` Dan Carpenter
0 siblings, 0 replies; 10+ messages in thread
From: Dan Carpenter @ 2021-07-03 13:01 UTC (permalink / raw)
To: kbuild, Rob Herring
Cc: lkp, kbuild-all, linux-kernel, Lakshmi Ramasubramanian,
Thiago Jung Bauermann
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d6b63b5b7d7f363c6a54421533791e9849adf2e0
commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
config: arm64-randconfig-m031-20210702 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 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:
arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 92
52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
52b2a8af743604 AKASHI Takahiro 2018-11-15 96
3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
3751e728cef290 AKASHI Takahiro 2019-12-16 104
3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
3751e728cef290 AKASHI Takahiro 2019-12-16 112
3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 121
3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
3751e728cef290 AKASHI Takahiro 2019-12-16 125
52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
52b2a8af743604 AKASHI Takahiro 2018-11-15 137
52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
52b2a8af743604 AKASHI Takahiro 2018-11-15 142
52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
52b2a8af743604 AKASHI Takahiro 2018-11-15 146
52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
^^^^^^^^^^^^^
Set the error code here? (The kbuild bot chopped of the rest of the
function. :P)
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
^ permalink raw reply [flat|nested] 10+ messages in thread
* arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-07-03 13:01 ` Dan Carpenter
0 siblings, 0 replies; 10+ messages in thread
From: Dan Carpenter @ 2021-07-03 13:01 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 7025 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d6b63b5b7d7f363c6a54421533791e9849adf2e0
commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
config: arm64-randconfig-m031-20210702 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 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:
arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 92
52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
52b2a8af743604 AKASHI Takahiro 2018-11-15 96
3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
3751e728cef290 AKASHI Takahiro 2019-12-16 104
3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
3751e728cef290 AKASHI Takahiro 2019-12-16 112
3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 121
3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
3751e728cef290 AKASHI Takahiro 2019-12-16 125
52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
52b2a8af743604 AKASHI Takahiro 2018-11-15 137
52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
52b2a8af743604 AKASHI Takahiro 2018-11-15 142
52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
52b2a8af743604 AKASHI Takahiro 2018-11-15 146
52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
^^^^^^^^^^^^^
Set the error code here? (The kbuild bot chopped of the rest of the
function. :P)
---
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] 10+ messages in thread
* Re: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
2021-12-06 20:31 ` Rob Herring
@ 2021-12-06 20:33 ` Lakshmi Ramasubramanian
-1 siblings, 0 replies; 10+ messages in thread
From: Lakshmi Ramasubramanian @ 2021-12-06 20:33 UTC (permalink / raw)
To: Rob Herring, Dan Carpenter
Cc: kbuild, lkp, kbuild-all, linux-kernel, Thiago Jung Bauermann
Yes Rob - will do it this week.
thanks,
-lakshmi
On 12/6/2021 12:31 PM, Rob Herring wrote:
> On Wed, Dec 1, 2021 at 5:47 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
>>
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
>> commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
>> config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp@intel.com/config)
>> compiler: aarch64-linux-gcc (GCC) 11.2.0
>>
>> 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:
>> arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
>
> Lakshmi, Can you please prepare a fix for this. It's been reported since July.
>
>>
>> vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
>>
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
>> 108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
>> 108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 92
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 96
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 104
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 112
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 121
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 125
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
>> c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 137
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 142
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
>> 51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 146
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
>> ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
>> ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
>> ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
>> ^^^^^^^^^^^^^
>> This needs an error code.
>>
>> ---
>> 0-DAY CI Kernel Test Service, Intel Corporation
>> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>>
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-12-06 20:33 ` Lakshmi Ramasubramanian
0 siblings, 0 replies; 10+ messages in thread
From: Lakshmi Ramasubramanian @ 2021-12-06 20:33 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 8446 bytes --]
Yes Rob - will do it this week.
thanks,
-lakshmi
On 12/6/2021 12:31 PM, Rob Herring wrote:
> On Wed, Dec 1, 2021 at 5:47 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
>>
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
>> commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
>> config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp(a)intel.com/config)
>> compiler: aarch64-linux-gcc (GCC) 11.2.0
>>
>> 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:
>> arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
>
> Lakshmi, Can you please prepare a fix for this. It's been reported since July.
>
>>
>> vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
>>
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
>> 108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
>> 108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 92
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 96
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 104
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 112
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 121
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
>> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
>> 3751e728cef290 AKASHI Takahiro 2019-12-16 125
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
>> c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 137
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 142
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
>> 51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 146
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
>> ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
>> ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
>> ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
>> 52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
>> ^^^^^^^^^^^^^
>> This needs an error code.
>>
>> ---
>> 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] 10+ messages in thread
* Re: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
2021-12-01 11:46 ` Dan Carpenter
@ 2021-12-06 20:31 ` Rob Herring
-1 siblings, 0 replies; 10+ messages in thread
From: Rob Herring @ 2021-12-06 20:31 UTC (permalink / raw)
To: Dan Carpenter, Lakshmi Ramasubramanian
Cc: kbuild, lkp, kbuild-all, linux-kernel, Thiago Jung Bauermann
On Wed, Dec 1, 2021 at 5:47 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
> commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
> config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp@intel.com/config)
> compiler: aarch64-linux-gcc (GCC) 11.2.0
>
> 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:
> arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
Lakshmi, Can you please prepare a fix for this. It's been reported since July.
>
> vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
>
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
> 108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
> 108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 92
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 96
> 3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
> 3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
> 3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
> 3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
> 3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
> 3751e728cef290 AKASHI Takahiro 2019-12-16 104
> 3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
> 3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 112
> 3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
> 3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 121
> 3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
> 3751e728cef290 AKASHI Takahiro 2019-12-16 125
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
> c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 137
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 142
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
> 51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 146
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
> ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
> ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
> ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
> ^^^^^^^^^^^^^
> This needs an error code.
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-12-06 20:31 ` Rob Herring
0 siblings, 0 replies; 10+ messages in thread
From: Rob Herring @ 2021-12-06 20:31 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 8241 bytes --]
On Wed, Dec 1, 2021 at 5:47 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
> commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
> config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp(a)intel.com/config)
> compiler: aarch64-linux-gcc (GCC) 11.2.0
>
> 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:
> arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
Lakshmi, Can you please prepare a fix for this. It's been reported since July.
>
> vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
>
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
> 108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
> 108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 92
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 96
> 3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
> 3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
> 3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
> 3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
> 3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
> 3751e728cef290 AKASHI Takahiro 2019-12-16 104
> 3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
> 3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 112
> 3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
> 3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
> 3751e728cef290 AKASHI Takahiro 2019-12-16 121
> 3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
> 7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
> 3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
> 3751e728cef290 AKASHI Takahiro 2019-12-16 125
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
> c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 137
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 142
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
> 51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 146
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
> ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
> ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
> ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
> 52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
> ^^^^^^^^^^^^^
> This needs an error code.
>
> ---
> 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] 10+ messages in thread
* arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-12-01 11:46 ` Dan Carpenter
0 siblings, 0 replies; 10+ messages in thread
From: Dan Carpenter @ 2021-12-01 11:46 UTC (permalink / raw)
To: kbuild, Rob Herring
Cc: lkp, kbuild-all, linux-kernel, Lakshmi Ramasubramanian,
Thiago Jung Bauermann
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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:
arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 92
52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
52b2a8af743604 AKASHI Takahiro 2018-11-15 96
3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
3751e728cef290 AKASHI Takahiro 2019-12-16 104
3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
3751e728cef290 AKASHI Takahiro 2019-12-16 112
3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 121
3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
3751e728cef290 AKASHI Takahiro 2019-12-16 125
52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
52b2a8af743604 AKASHI Takahiro 2018-11-15 137
52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
52b2a8af743604 AKASHI Takahiro 2018-11-15 142
52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
52b2a8af743604 AKASHI Takahiro 2018-11-15 146
52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
^^^^^^^^^^^^^
This needs an error code.
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
^ permalink raw reply [flat|nested] 10+ messages in thread
* arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-12-01 11:46 ` Dan Carpenter
0 siblings, 0 replies; 10+ messages in thread
From: Dan Carpenter @ 2021-12-01 11:46 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 7035 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp(a)intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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:
arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 92
52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
52b2a8af743604 AKASHI Takahiro 2018-11-15 96
3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
3751e728cef290 AKASHI Takahiro 2019-12-16 104
3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
3751e728cef290 AKASHI Takahiro 2019-12-16 112
3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 121
3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
3751e728cef290 AKASHI Takahiro 2019-12-16 125
52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
52b2a8af743604 AKASHI Takahiro 2018-11-15 137
52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
52b2a8af743604 AKASHI Takahiro 2018-11-15 142
52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
52b2a8af743604 AKASHI Takahiro 2018-11-15 146
52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
^^^^^^^^^^^^^
This needs an error code.
---
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] 10+ messages in thread
* arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
@ 2021-12-01 11:46 ` Dan Carpenter
0 siblings, 0 replies; 10+ messages in thread
From: kernel test robot @ 2021-11-27 20:07 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 8004 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Rob Herring <robh@kernel.org>
CC: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
CC: Thiago Jung Bauermann <bauerman@linux.ibm.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5
commit: ac10be5cdbfa852139658d52c2f1c608782ce992 arm64: Use common of_kexec_alloc_and_setup_fdt()
date: 9 months ago
:::::: branch date: 23 hours ago
:::::: commit date: 9 months ago
config: arm64-randconfig-m031-20211127 (https://download.01.org/0day-ci/archive/20211128/202111280304.FL2314qf-lkp(a)intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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:
arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret'
vim +/ret +152 arch/arm64/kernel/machine_kexec_file.c
3751e728cef290 AKASHI Takahiro 2019-12-16 75
108aa503657ee2 Benjamin Gwin 2020-11-03 76 /*
108aa503657ee2 Benjamin Gwin 2020-11-03 77 * Tries to add the initrd and DTB to the image. If it is not possible to find
108aa503657ee2 Benjamin Gwin 2020-11-03 78 * valid locations, this function will undo changes to the image and return non
108aa503657ee2 Benjamin Gwin 2020-11-03 79 * zero.
108aa503657ee2 Benjamin Gwin 2020-11-03 80 */
52b2a8af743604 AKASHI Takahiro 2018-11-15 81 int load_other_segments(struct kimage *image,
52b2a8af743604 AKASHI Takahiro 2018-11-15 82 unsigned long kernel_load_addr,
52b2a8af743604 AKASHI Takahiro 2018-11-15 83 unsigned long kernel_size,
52b2a8af743604 AKASHI Takahiro 2018-11-15 84 char *initrd, unsigned long initrd_len,
52b2a8af743604 AKASHI Takahiro 2018-11-15 85 char *cmdline)
52b2a8af743604 AKASHI Takahiro 2018-11-15 86 {
52b2a8af743604 AKASHI Takahiro 2018-11-15 87 struct kexec_buf kbuf;
3751e728cef290 AKASHI Takahiro 2019-12-16 88 void *headers, *dtb = NULL;
108aa503657ee2 Benjamin Gwin 2020-11-03 89 unsigned long headers_sz, initrd_load_addr = 0, dtb_len,
108aa503657ee2 Benjamin Gwin 2020-11-03 90 orig_segments = image->nr_segments;
52b2a8af743604 AKASHI Takahiro 2018-11-15 91 int ret = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 92
52b2a8af743604 AKASHI Takahiro 2018-11-15 93 kbuf.image = image;
52b2a8af743604 AKASHI Takahiro 2018-11-15 94 /* not allocate anything below the kernel */
52b2a8af743604 AKASHI Takahiro 2018-11-15 95 kbuf.buf_min = kernel_load_addr + kernel_size;
52b2a8af743604 AKASHI Takahiro 2018-11-15 96
3751e728cef290 AKASHI Takahiro 2019-12-16 97 /* load elf core header */
3751e728cef290 AKASHI Takahiro 2019-12-16 98 if (image->type == KEXEC_TYPE_CRASH) {
3751e728cef290 AKASHI Takahiro 2019-12-16 99 ret = prepare_elf_headers(&headers, &headers_sz);
3751e728cef290 AKASHI Takahiro 2019-12-16 100 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 101 pr_err("Preparing elf core header failed\n");
3751e728cef290 AKASHI Takahiro 2019-12-16 102 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 103 }
3751e728cef290 AKASHI Takahiro 2019-12-16 104
3751e728cef290 AKASHI Takahiro 2019-12-16 105 kbuf.buffer = headers;
3751e728cef290 AKASHI Takahiro 2019-12-16 106 kbuf.bufsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 107 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
3751e728cef290 AKASHI Takahiro 2019-12-16 108 kbuf.memsz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 109 kbuf.buf_align = SZ_64K; /* largest supported page size */
3751e728cef290 AKASHI Takahiro 2019-12-16 110 kbuf.buf_max = ULONG_MAX;
3751e728cef290 AKASHI Takahiro 2019-12-16 111 kbuf.top_down = true;
3751e728cef290 AKASHI Takahiro 2019-12-16 112
3751e728cef290 AKASHI Takahiro 2019-12-16 113 ret = kexec_add_buffer(&kbuf);
3751e728cef290 AKASHI Takahiro 2019-12-16 114 if (ret) {
3751e728cef290 AKASHI Takahiro 2019-12-16 115 vfree(headers);
3751e728cef290 AKASHI Takahiro 2019-12-16 116 goto out_err;
3751e728cef290 AKASHI Takahiro 2019-12-16 117 }
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 118 image->elf_headers = headers;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 119 image->elf_load_addr = kbuf.mem;
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 120 image->elf_headers_sz = headers_sz;
3751e728cef290 AKASHI Takahiro 2019-12-16 121
3751e728cef290 AKASHI Takahiro 2019-12-16 122 pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
7b558cc3564e6c Lakshmi Ramasubramanian 2021-02-21 123 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);
3751e728cef290 AKASHI Takahiro 2019-12-16 124 }
3751e728cef290 AKASHI Takahiro 2019-12-16 125
52b2a8af743604 AKASHI Takahiro 2018-11-15 126 /* load initrd */
52b2a8af743604 AKASHI Takahiro 2018-11-15 127 if (initrd) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 128 kbuf.buffer = initrd;
52b2a8af743604 AKASHI Takahiro 2018-11-15 129 kbuf.bufsz = initrd_len;
c19d050f808812 Bhupesh Sharma 2019-07-11 130 kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
52b2a8af743604 AKASHI Takahiro 2018-11-15 131 kbuf.memsz = initrd_len;
52b2a8af743604 AKASHI Takahiro 2018-11-15 132 kbuf.buf_align = 0;
52b2a8af743604 AKASHI Takahiro 2018-11-15 133 /* within 1GB-aligned window of up to 32GB in size */
52b2a8af743604 AKASHI Takahiro 2018-11-15 134 kbuf.buf_max = round_down(kernel_load_addr, SZ_1G)
52b2a8af743604 AKASHI Takahiro 2018-11-15 135 + (unsigned long)SZ_1G * 32;
52b2a8af743604 AKASHI Takahiro 2018-11-15 136 kbuf.top_down = false;
52b2a8af743604 AKASHI Takahiro 2018-11-15 137
52b2a8af743604 AKASHI Takahiro 2018-11-15 138 ret = kexec_add_buffer(&kbuf);
52b2a8af743604 AKASHI Takahiro 2018-11-15 139 if (ret)
52b2a8af743604 AKASHI Takahiro 2018-11-15 140 goto out_err;
52b2a8af743604 AKASHI Takahiro 2018-11-15 141 initrd_load_addr = kbuf.mem;
52b2a8af743604 AKASHI Takahiro 2018-11-15 142
52b2a8af743604 AKASHI Takahiro 2018-11-15 143 pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
51075e0cb759a7 Łukasz Stelmach 2020-04-30 144 initrd_load_addr, kbuf.bufsz, kbuf.memsz);
52b2a8af743604 AKASHI Takahiro 2018-11-15 145 }
52b2a8af743604 AKASHI Takahiro 2018-11-15 146
52b2a8af743604 AKASHI Takahiro 2018-11-15 147 /* load dtb */
ac10be5cdbfa85 Rob Herring 2021-02-21 148 dtb = of_kexec_alloc_and_setup_fdt(image, initrd_load_addr,
ac10be5cdbfa85 Rob Herring 2021-02-21 149 initrd_len, cmdline, 0);
ac10be5cdbfa85 Rob Herring 2021-02-21 150 if (!dtb) {
52b2a8af743604 AKASHI Takahiro 2018-11-15 151 pr_err("Preparing for new dtb failed\n");
52b2a8af743604 AKASHI Takahiro 2018-11-15 @152 goto out_err;
:::::: The code at line 152 was first introduced by commit
:::::: 52b2a8af7436044cfcb27e4b0f72c2ce1f3890da arm64: kexec_file: load initrd and device-tree
:::::: TO: AKASHI Takahiro <takahiro.akashi@linaro.org>
:::::: CC: Will Deacon <will.deacon@arm.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] 10+ messages in thread
end of thread, other threads:[~2021-12-06 20:33 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-03 2:05 arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret' kernel test robot
2021-07-03 13:01 ` Dan Carpenter
2021-07-03 13:01 ` Dan Carpenter
2021-12-01 11:46 Dan Carpenter
2021-11-27 20:07 ` kernel test robot
2021-12-01 11:46 ` Dan Carpenter
2021-12-06 20:31 ` Rob Herring
2021-12-06 20:31 ` Rob Herring
2021-12-06 20:33 ` Lakshmi Ramasubramanian
2021-12-06 20:33 ` Lakshmi Ramasubramanian
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