* [linusw-nomadik:ux500-golden-v5.18-rc1 1/2] drivers/gpu/drm/panel/panel-samsung-s6e63m0.c:755:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
@ 2022-04-07 1:14 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-04-07 1:14 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 32151 bytes --]
CC: llvm(a)lists.linux.dev
CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-arm-kernel(a)lists.infradead.org
TO: Linus Walleij <linus.walleij@linaro.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ux500-golden-v5.18-rc1
head: 5f95e0e02cd1bab6859714e9b499d1671f83b65a
commit: ed5a6c74c4dbf9cbf8254a6f5a45c9cd61f74060 [1/2] drm/panel: s6e63m0: Register ESD IRQ handler
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: arm-randconfig-c002-20220405 (https://download.01.org/0day-ci/archive/20220407/202204070929.GOmCSBy9-lkp(a)intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c4a1b07d0979e7ff20d7d541af666d822d66b566)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git/commit/?id=ed5a6c74c4dbf9cbf8254a6f5a45c9cd61f74060
git remote add linusw-nomadik https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
git fetch --no-tags linusw-nomadik ux500-golden-v5.18-rc1
git checkout ed5a6c74c4dbf9cbf8254a6f5a45c9cd61f74060
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
clang-analyzer warnings: (new ones prefixed by >>)
^~~~~~
fs/ext4/ioctl.c:1117:2: note: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11
memset(new_label + len, 0, EXT4_LABEL_MAX - len);
^~~~~~
fs/ext4/ioctl.c:1140:2: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memset(label, 0, sizeof(label));
^~~~~~
fs/ext4/ioctl.c:1140:2: note: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11
memset(label, 0, sizeof(label));
^~~~~~
fs/ext4/ioctl.c:1142:2: warning: Call to function 'strncpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'strncpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
strncpy(label, sbi->s_es->s_volume_name, EXT4_LABEL_MAX);
^~~~~~~
fs/ext4/ioctl.c:1142:2: note: Call to function 'strncpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'strncpy_s' in case of C11
strncpy(label, sbi->s_es->s_volume_name, EXT4_LABEL_MAX);
^~~~~~~
Suppressed 45 warnings (45 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
52 warnings generated.
drivers/crypto/sahara.c:453:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(dev->key_base, ctx->key, ctx->keylen);
^~~~~~
drivers/crypto/sahara.c:453:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(dev->key_base, ctx->key, ctx->keylen);
^~~~~~
drivers/crypto/sahara.c:576:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(dev->iv_base, req->iv, AES_KEYSIZE_128);
^~~~~~
drivers/crypto/sahara.c:576:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(dev->iv_base, req->iv, AES_KEYSIZE_128);
^~~~~~
drivers/crypto/sahara.c:611:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(ctx->key, key, keylen);
^~~~~~
drivers/crypto/sahara.c:611:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(ctx->key, key, keylen);
^~~~~~
drivers/crypto/sahara.c:937:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(rctx->rembuf, rctx->buf, rctx->buf_cnt);
^~~~~~
drivers/crypto/sahara.c:937:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(rctx->rembuf, rctx->buf, rctx->buf_cnt);
^~~~~~
drivers/crypto/sahara.c:1002:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(dev->context_base, rctx->context, rctx->context_size);
^~~~~~
drivers/crypto/sahara.c:1002:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(dev->context_base, rctx->context, rctx->context_size);
^~~~~~
drivers/crypto/sahara.c:1028:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(rctx->context, dev->context_base, rctx->context_size);
^~~~~~
drivers/crypto/sahara.c:1028:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(rctx->context, dev->context_base, rctx->context_size);
^~~~~~
drivers/crypto/sahara.c:1031:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(req->result, rctx->context, rctx->digest_size);
^~~~~~
drivers/crypto/sahara.c:1031:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(req->result, rctx->context, rctx->digest_size);
^~~~~~
drivers/crypto/sahara.c:1109:2: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memset(rctx, 0, sizeof(*rctx));
^~~~~~
drivers/crypto/sahara.c:1109:2: note: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11
memset(rctx, 0, sizeof(*rctx));
^~~~~~
drivers/crypto/sahara.c:1157:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(out, rctx, sizeof(struct sahara_sha_reqctx));
^~~~~~
drivers/crypto/sahara.c:1157:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(out, rctx, sizeof(struct sahara_sha_reqctx));
^~~~~~
drivers/crypto/sahara.c:1166:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(rctx, in, sizeof(struct sahara_sha_reqctx));
^~~~~~
drivers/crypto/sahara.c:1166:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(rctx, in, sizeof(struct sahara_sha_reqctx));
^~~~~~
Suppressed 42 warnings (42 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
42 warnings generated.
Suppressed 42 warnings (42 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
42 warnings generated.
Suppressed 42 warnings (42 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
42 warnings generated.
drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c:439:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT);
^~~~~~
drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c:439:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT);
^~~~~~
Suppressed 41 warnings (41 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
41 warnings generated.
Suppressed 41 warnings (41 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
42 warnings generated.
>> drivers/gpu/drm/panel/panel-samsung-s6e63m0.c:755:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = devm_request_threaded_irq(dev, irq, NULL,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/panel/panel-samsung-s6e63m0.c:755:3: note: Value stored to 'ret' is never read
ret = devm_request_threaded_irq(dev, irq, NULL,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 41 warnings (41 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
41 warnings generated.
Suppressed 41 warnings (41 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
41 warnings generated.
Suppressed 41 warnings (41 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
114 warnings generated.
drivers/staging/ks7010/ks_hostif.c:112:3: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memset(ap, 0, sizeof(struct local_ap));
^~~~~~
drivers/staging/ks7010/ks_hostif.c:112:3: note: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11
memset(ap, 0, sizeof(struct local_ap));
^~~~~~
drivers/staging/ks7010/ks_hostif.c:117:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(ap->ssid.body, priv->reg.ssid.body,
^~~~~~
drivers/staging/ks7010/ks_hostif.c:117:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(ap->ssid.body, priv->reg.ssid.body,
^~~~~~
drivers/staging/ks7010/ks_hostif.c:120:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(ap->rate_set.body, ap_info->rate_set.body,
^~~~~~
drivers/staging/ks7010/ks_hostif.c:120:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(ap->rate_set.body, ap_info->rate_set.body,
^~~~~~
drivers/staging/ks7010/ks_hostif.c:124:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(&ap->rate_set.body[ap->rate_set.size],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:124:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(&ap->rate_set.body[ap->rate_set.size],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:140:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(ap->rsn_ie.body, ap_info->rsn.body, size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:140:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(ap->rsn_ie.body, ap_info->rsn.body, size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:145:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(ap->wpa_ie.body, ap_info->rsn.body, size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:145:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(ap->wpa_ie.body, ap_info->rsn.body, size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:192:2: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(body, bp + 2, size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:192:2: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(body, bp + 2, size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:264:2: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memset(ap, 0, sizeof(struct local_ap));
^~~~~~
drivers/staging/ks7010/ks_hostif.c:264:2: note: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11
memset(ap, 0, sizeof(struct local_ap));
^~~~~~
drivers/staging/ks7010/ks_hostif.c:287:5: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(&ap->rate_set.body[ap->rate_set.size],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:287:5: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(&ap->rate_set.body[ap->rate_set.size],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:291:5: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(&ap->rate_set.body[ap->rate_set.size],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:291:5: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(&ap->rate_set.body[ap->rate_set.size],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:349:2: warning: Value stored to 'eth_proto' is never read [clang-analyzer-deadcode.DeadStores]
eth_proto = ntohs(eth_hdr->h_proto);
^
drivers/staging/ks7010/ks_hostif.c:349:2: note: Value stored to 'eth_proto' is never read
drivers/staging/ks7010/ks_hostif.c:368:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(&recv_mic[0],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:368:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
memcpy(&recv_mic[0],
^~~~~~
drivers/staging/ks7010/ks_hostif.c:400:4: warning: Call to function 'sprintf' is insecure as it does not provide bounding of the memory buffer or security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'sprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
sprintf(buf,
^~~~~~~
drivers/staging/ks7010/ks_hostif.c:400:4: note: Call to function 'sprintf' is insecure as it does not provide bounding of the memory buffer or security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'sprintf_s' in case of C11
sprintf(buf,
^~~~~~~
drivers/staging/ks7010/ks_hostif.c:405:4: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memset(&wrqu, 0, sizeof(wrqu));
^~~~~~
drivers/staging/ks7010/ks_hostif.c:405:4: note: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11
memset(&wrqu, 0, sizeof(wrqu));
^~~~~~
drivers/staging/ks7010/ks_hostif.c:549:3: warning: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
memcpy(priv->firmware_version, priv->rxp, priv->rx_size);
^~~~~~
drivers/staging/ks7010/ks_hostif.c:549:3: note: Call to function 'memcpy' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memcpy_s' in case of C11
vim +/ret +755 drivers/gpu/drm/panel/panel-samsung-s6e63m0.c
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 705
c2a61865baa45b Linus Walleij 2021-06-14 706 int s6e63m0_probe(struct device *dev, void *trsp,
c2a61865baa45b Linus Walleij 2021-06-14 707 int (*dcs_read)(struct device *dev, void *trsp, const u8 cmd, u8 *val),
c2a61865baa45b Linus Walleij 2021-06-14 708 int (*dcs_write)(struct device *dev, void *trsp, const u8 *data, size_t len),
435e06c06cb2e3 Linus Walleij 2020-08-09 709 bool dsi_mode)
994a08a266e3e6 Paweł Chmiel 2019-02-22 710 {
994a08a266e3e6 Paweł Chmiel 2019-02-22 711 struct s6e63m0 *ctx;
1f20bf5921de42 Linus Walleij 2020-12-14 712 u32 max_brightness;
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 713 int irq;
994a08a266e3e6 Paweł Chmiel 2019-02-22 714 int ret;
994a08a266e3e6 Paweł Chmiel 2019-02-22 715
994a08a266e3e6 Paweł Chmiel 2019-02-22 716 ctx = devm_kzalloc(dev, sizeof(struct s6e63m0), GFP_KERNEL);
994a08a266e3e6 Paweł Chmiel 2019-02-22 717 if (!ctx)
994a08a266e3e6 Paweł Chmiel 2019-02-22 718 return -ENOMEM;
994a08a266e3e6 Paweł Chmiel 2019-02-22 719
c2a61865baa45b Linus Walleij 2021-06-14 720 ctx->transport_data = trsp;
47b1adc1d2a3b3 Linus Walleij 2020-12-05 721 ctx->dsi_mode = dsi_mode;
91867ac7d6724c Linus Walleij 2020-08-09 722 ctx->dcs_read = dcs_read;
b7b23e4476872d Linus Walleij 2020-08-09 723 ctx->dcs_write = dcs_write;
b7b23e4476872d Linus Walleij 2020-08-09 724 dev_set_drvdata(dev, ctx);
994a08a266e3e6 Paweł Chmiel 2019-02-22 725
994a08a266e3e6 Paweł Chmiel 2019-02-22 726 ctx->dev = dev;
994a08a266e3e6 Paweł Chmiel 2019-02-22 727 ctx->enabled = false;
994a08a266e3e6 Paweł Chmiel 2019-02-22 728 ctx->prepared = false;
994a08a266e3e6 Paweł Chmiel 2019-02-22 729
1f20bf5921de42 Linus Walleij 2020-12-14 730 ret = device_property_read_u32(dev, "max-brightness", &max_brightness);
1f20bf5921de42 Linus Walleij 2020-12-14 731 if (ret)
1f20bf5921de42 Linus Walleij 2020-12-14 732 max_brightness = MAX_BRIGHTNESS;
1f20bf5921de42 Linus Walleij 2020-12-14 733 if (max_brightness > MAX_BRIGHTNESS) {
1f20bf5921de42 Linus Walleij 2020-12-14 734 dev_err(dev, "illegal max brightness specified\n");
1f20bf5921de42 Linus Walleij 2020-12-14 735 max_brightness = MAX_BRIGHTNESS;
1f20bf5921de42 Linus Walleij 2020-12-14 736 }
1f20bf5921de42 Linus Walleij 2020-12-14 737
994a08a266e3e6 Paweł Chmiel 2019-02-22 738 ctx->supplies[0].supply = "vdd3";
994a08a266e3e6 Paweł Chmiel 2019-02-22 739 ctx->supplies[1].supply = "vci";
994a08a266e3e6 Paweł Chmiel 2019-02-22 740 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
994a08a266e3e6 Paweł Chmiel 2019-02-22 741 ctx->supplies);
994a08a266e3e6 Paweł Chmiel 2019-02-22 742 if (ret < 0) {
5936b3bdaa8889 Sam Ravnborg 2020-08-15 743 dev_err(dev, "failed to get regulators: %d\n", ret);
994a08a266e3e6 Paweł Chmiel 2019-02-22 744 return ret;
994a08a266e3e6 Paweł Chmiel 2019-02-22 745 }
994a08a266e3e6 Paweł Chmiel 2019-02-22 746
994a08a266e3e6 Paweł Chmiel 2019-02-22 747 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
994a08a266e3e6 Paweł Chmiel 2019-02-22 748 if (IS_ERR(ctx->reset_gpio)) {
5936b3bdaa8889 Sam Ravnborg 2020-08-15 749 dev_err(dev, "cannot get reset-gpios %ld\n", PTR_ERR(ctx->reset_gpio));
994a08a266e3e6 Paweł Chmiel 2019-02-22 750 return PTR_ERR(ctx->reset_gpio);
994a08a266e3e6 Paweł Chmiel 2019-02-22 751 }
994a08a266e3e6 Paweł Chmiel 2019-02-22 752
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 753 irq = of_irq_get(dev->of_node, 0);
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 754 if (irq) {
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 @755 ret = devm_request_threaded_irq(dev, irq, NULL,
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 756 s6e63m0_esd_irq, IRQF_ONESHOT,
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 757 "s6e63m0-esd", ctx);
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 758 }
ed5a6c74c4dbf9 Linus Walleij 2020-11-17 759
9a2654c0f62a17 Laurent Pinchart 2019-09-04 760 drm_panel_init(&ctx->panel, dev, &s6e63m0_drm_funcs,
435e06c06cb2e3 Linus Walleij 2020-08-09 761 dsi_mode ? DRM_MODE_CONNECTOR_DSI :
9a2654c0f62a17 Laurent Pinchart 2019-09-04 762 DRM_MODE_CONNECTOR_DPI);
994a08a266e3e6 Paweł Chmiel 2019-02-22 763
1f20bf5921de42 Linus Walleij 2020-12-14 764 ret = s6e63m0_backlight_register(ctx, max_brightness);
994a08a266e3e6 Paweł Chmiel 2019-02-22 765 if (ret < 0)
994a08a266e3e6 Paweł Chmiel 2019-02-22 766 return ret;
994a08a266e3e6 Paweł Chmiel 2019-02-22 767
c3ee8c65f63799 Bernard Zhao 2020-08-01 768 drm_panel_add(&ctx->panel);
c3ee8c65f63799 Bernard Zhao 2020-08-01 769
c3ee8c65f63799 Bernard Zhao 2020-08-01 770 return 0;
994a08a266e3e6 Paweł Chmiel 2019-02-22 771 }
b7b23e4476872d Linus Walleij 2020-08-09 772 EXPORT_SYMBOL_GPL(s6e63m0_probe);
994a08a266e3e6 Paweł Chmiel 2019-02-22 773
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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2022-04-07 1:14 [linusw-nomadik:ux500-golden-v5.18-rc1 1/2] drivers/gpu/drm/panel/panel-samsung-s6e63m0.c:755:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] kernel test robot
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