* [intel-lts:5.10/yocto 2/2] drivers/mmc/core/block.c:1076:12: warning: Branch condition evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch]
@ 2022-02-12 18:17 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-02-12 18:17 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 16368 bytes --]
CC: kbuild-all(a)lists.01.org
TO: Ranjan Dutta <ranjan.dutta@intel.com>
tree: https://github.com/intel/linux-intel-lts.git 5.10/yocto
head: c1454bb2993a11fdcd48794cdd65569c3b33a5b0
commit: c1454bb2993a11fdcd48794cdd65569c3b33a5b0 [2/2] Merge branch 'my/v5.10.83' into lts2020/yocto
:::::: branch date: 9 weeks ago
:::::: commit date: 9 weeks ago
config: i386-randconfig-c001 (https://download.01.org/0day-ci/archive/20220212/202202122206.QadIzQek-lkp(a)intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project aa845d7a245d85c441d0bd44fc7b6c3be8f3de8d)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel/linux-intel-lts/commit/c1454bb2993a11fdcd48794cdd65569c3b33a5b0
git remote add intel-lts https://github.com/intel/linux-intel-lts.git
git fetch --no-tags intel-lts 5.10/yocto
git checkout c1454bb2993a11fdcd48794cdd65569c3b33a5b0
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 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 >>)
^~~~
drivers/mmc/core/block.c:884:35: note: Left side of '&&' is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
drivers/mmc/core/block.c:884:2: note: '?' condition is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:884:35: note: Left side of '&&' is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
drivers/mmc/core/block.c:884:2: note: '?' condition is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:884:2: note: Taking false branch
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:903:11: note: Storing uninitialized value
blocks = kmalloc(4, GFP_KERNEL);
^~~~~~~~~~~~~~~~~~~~~~
drivers/mmc/core/block.c:904:6: note: Assuming 'blocks' is non-null
if (!blocks)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/mmc/core/block.c:904:2: note: '?' condition is false
if (!blocks)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:904:7: note: 'blocks' is non-null
if (!blocks)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/mmc/core/block.c:904:2: note: '?' condition is false
if (!blocks)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:904:2: note: Taking false branch
if (!blocks)
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:911:11: note: 1st function call argument is an uninitialized value
result = ntohl(*blocks);
^
include/linux/byteorder/generic.h:140:18: note: expanded from macro 'ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~~~~
include/linux/byteorder/generic.h:136:21: note: expanded from macro '___ntohl'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~~~~
include/uapi/linux/byteorder/little_endian.h:40:26: note: expanded from macro '__be32_to_cpu'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/uapi/linux/swab.h:115:28: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^ ~~~~~~~~~~
>> drivers/mmc/core/block.c:1076:12: warning: Branch condition evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch]
op_mode = idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
^
drivers/mmc/core/block.c:1145:6: note: Assuming 'rpmb' is non-null
if (!rpmb)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/mmc/core/block.c:1145:2: note: '?' condition is false
if (!rpmb)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:1145:7: note: 'rpmb' is non-null
if (!rpmb)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/mmc/core/block.c:1145:2: note: '?' condition is false
if (!rpmb)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:1145:2: note: Taking false branch
if (!rpmb)
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:1149:6: note: Assuming 'idata' is non-null
if (!idata)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/mmc/core/block.c:1149:2: note: '?' condition is false
if (!idata)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:1149:7: note: 'idata' is non-null
if (!idata)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/mmc/core/block.c:1149:2: note: '?' condition is false
if (!idata)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:1149:2: note: Taking false branch
if (!idata)
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:1152:14: note: Assuming 'i' is < 'num_of_cmds'
for (i = 0; i < num_of_cmds; i++) {
vim +1076 drivers/mmc/core/block.c
5ec1239694c74e Linus Walleij 2017-05-19 1055
a85416e2755608 Tomas Winkler 2015-01-28 1056 static int mmc_blk_rpmb_process(struct mmc_blk_data *md,
a85416e2755608 Tomas Winkler 2015-01-28 1057 struct mmc_blk_ioc_data *idata[],
a85416e2755608 Tomas Winkler 2015-01-28 1058 u64 num_of_cmds)
a85416e2755608 Tomas Winkler 2015-01-28 1059 {
a85416e2755608 Tomas Winkler 2015-01-28 1060 struct mmc_card *card;
a85416e2755608 Tomas Winkler 2015-01-28 1061 struct mmc_queue *mq;
a85416e2755608 Tomas Winkler 2015-01-28 1062 int err = 0;
a85416e2755608 Tomas Winkler 2015-01-28 1063 struct request *req;
a85416e2755608 Tomas Winkler 2015-01-28 1064 int op_mode;
a85416e2755608 Tomas Winkler 2015-01-28 1065
a85416e2755608 Tomas Winkler 2015-01-28 1066 card = md->queue.card;
a85416e2755608 Tomas Winkler 2015-01-28 1067 if (IS_ERR(card)) {
a85416e2755608 Tomas Winkler 2015-01-28 1068 err = PTR_ERR(card);
a85416e2755608 Tomas Winkler 2015-01-28 1069 goto cmd_err;
a85416e2755608 Tomas Winkler 2015-01-28 1070 }
a85416e2755608 Tomas Winkler 2015-01-28 1071
a85416e2755608 Tomas Winkler 2015-01-28 1072 /*
a85416e2755608 Tomas Winkler 2015-01-28 1073 * Dispatch the ioctl()s into the block request queue.
a85416e2755608 Tomas Winkler 2015-01-28 1074 */
a85416e2755608 Tomas Winkler 2015-01-28 1075 mq = &md->queue;
a85416e2755608 Tomas Winkler 2015-01-28 @1076 op_mode = idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
a85416e2755608 Tomas Winkler 2015-01-28 1077 req = blk_get_request(mq->queue, op_mode, 0);
a85416e2755608 Tomas Winkler 2015-01-28 1078 if (IS_ERR(req)) {
a85416e2755608 Tomas Winkler 2015-01-28 1079 err = PTR_ERR(req);
a85416e2755608 Tomas Winkler 2015-01-28 1080 goto cmd_err;
a85416e2755608 Tomas Winkler 2015-01-28 1081 }
a85416e2755608 Tomas Winkler 2015-01-28 1082
a85416e2755608 Tomas Winkler 2015-01-28 1083 req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL_RPMB;
a85416e2755608 Tomas Winkler 2015-01-28 1084 req_to_mmc_queue_req(req)->drv_op_data = idata;
a85416e2755608 Tomas Winkler 2015-01-28 1085 req_to_mmc_queue_req(req)->ioc_count = num_of_cmds;
a85416e2755608 Tomas Winkler 2015-01-28 1086
a85416e2755608 Tomas Winkler 2015-01-28 1087 blk_execute_rq(mq->queue, NULL, req, 0);
a85416e2755608 Tomas Winkler 2015-01-28 1088
a85416e2755608 Tomas Winkler 2015-01-28 1089 err = req_to_mmc_queue_req(req)->drv_op_result;
a85416e2755608 Tomas Winkler 2015-01-28 1090
a85416e2755608 Tomas Winkler 2015-01-28 1091 blk_put_request(req);
a85416e2755608 Tomas Winkler 2015-01-28 1092
a85416e2755608 Tomas Winkler 2015-01-28 1093 cmd_err:
a85416e2755608 Tomas Winkler 2015-01-28 1094 return err;
a85416e2755608 Tomas Winkler 2015-01-28 1095 }
a85416e2755608 Tomas Winkler 2015-01-28 1096
:::::: The code at line 1076 was first introduced by commit
:::::: a85416e27556088f75f35fb5c464ece37d204591 mmc: block: register RPMB partition with the RPMB subsystem
:::::: TO: Tomas Winkler <tomas.winkler@intel.com>
:::::: CC: Dutta, Ranjan <ranjan.dutta@intel.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] 2+ messages in thread
* [intel-lts:5.10/yocto 2/2] drivers/mmc/core/block.c:1076:12: warning: Branch condition evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch]
@ 2022-01-17 23:19 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-01-17 23:19 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 16368 bytes --]
CC: kbuild-all(a)lists.01.org
TO: Ranjan Dutta <ranjan.dutta@intel.com>
tree: https://github.com/intel/linux-intel-lts.git 5.10/yocto
head: c1454bb2993a11fdcd48794cdd65569c3b33a5b0
commit: c1454bb2993a11fdcd48794cdd65569c3b33a5b0 [2/2] Merge branch 'my/v5.10.83' into lts2020/yocto
:::::: branch date: 6 weeks ago
:::::: commit date: 6 weeks ago
config: i386-randconfig-c001 (https://download.01.org/0day-ci/archive/20220118/202201180720.bU48Huqv-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c63a3175c2947e8c1a2d3bbe16a8586600705c54)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel/linux-intel-lts/commit/c1454bb2993a11fdcd48794cdd65569c3b33a5b0
git remote add intel-lts https://github.com/intel/linux-intel-lts.git
git fetch --no-tags intel-lts 5.10/yocto
git checkout c1454bb2993a11fdcd48794cdd65569c3b33a5b0
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 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 >>)
^~~~
drivers/mmc/core/block.c:884:35: note: Left side of '&&' is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
drivers/mmc/core/block.c:884:2: note: '?' condition is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:884:35: note: Left side of '&&' is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
drivers/mmc/core/block.c:884:2: note: '?' condition is false
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:884:2: note: Taking false branch
if (!mmc_host_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:903:11: note: Storing uninitialized value
blocks = kmalloc(4, GFP_KERNEL);
^~~~~~~~~~~~~~~~~~~~~~
drivers/mmc/core/block.c:904:6: note: Assuming 'blocks' is non-null
if (!blocks)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/mmc/core/block.c:904:2: note: '?' condition is false
if (!blocks)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:904:7: note: 'blocks' is non-null
if (!blocks)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/mmc/core/block.c:904:2: note: '?' condition is false
if (!blocks)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:904:2: note: Taking false branch
if (!blocks)
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:911:11: note: 1st function call argument is an uninitialized value
result = ntohl(*blocks);
^
include/linux/byteorder/generic.h:140:18: note: expanded from macro 'ntohl'
#define ntohl(x) ___ntohl(x)
^~~~~~~~~~~
include/linux/byteorder/generic.h:136:21: note: expanded from macro '___ntohl'
#define ___ntohl(x) __be32_to_cpu(x)
^~~~~~~~~~~~~~~~
include/uapi/linux/byteorder/little_endian.h:40:26: note: expanded from macro '__be32_to_cpu'
#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/uapi/linux/swab.h:115:28: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^ ~~~~~~~~~~
>> drivers/mmc/core/block.c:1076:12: warning: Branch condition evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch]
op_mode = idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
^
drivers/mmc/core/block.c:1145:6: note: Assuming 'rpmb' is non-null
if (!rpmb)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/mmc/core/block.c:1145:2: note: '?' condition is false
if (!rpmb)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:1145:7: note: 'rpmb' is non-null
if (!rpmb)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/mmc/core/block.c:1145:2: note: '?' condition is false
if (!rpmb)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:1145:2: note: Taking false branch
if (!rpmb)
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:1149:6: note: Assuming 'idata' is non-null
if (!idata)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/mmc/core/block.c:1149:2: note: '?' condition is false
if (!idata)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
drivers/mmc/core/block.c:1149:7: note: 'idata' is non-null
if (!idata)
^
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/mmc/core/block.c:1149:2: note: '?' condition is false
if (!idata)
^
include/linux/compiler.h:56:28: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^
include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value'
(cond) ? \
^
drivers/mmc/core/block.c:1149:2: note: Taking false branch
if (!idata)
^
include/linux/compiler.h:56:23: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^
drivers/mmc/core/block.c:1152:14: note: Assuming 'i' is < 'num_of_cmds'
for (i = 0; i < num_of_cmds; i++) {
vim +1076 drivers/mmc/core/block.c
5ec1239694c74e Linus Walleij 2017-05-19 1055
a85416e2755608 Tomas Winkler 2015-01-28 1056 static int mmc_blk_rpmb_process(struct mmc_blk_data *md,
a85416e2755608 Tomas Winkler 2015-01-28 1057 struct mmc_blk_ioc_data *idata[],
a85416e2755608 Tomas Winkler 2015-01-28 1058 u64 num_of_cmds)
a85416e2755608 Tomas Winkler 2015-01-28 1059 {
a85416e2755608 Tomas Winkler 2015-01-28 1060 struct mmc_card *card;
a85416e2755608 Tomas Winkler 2015-01-28 1061 struct mmc_queue *mq;
a85416e2755608 Tomas Winkler 2015-01-28 1062 int err = 0;
a85416e2755608 Tomas Winkler 2015-01-28 1063 struct request *req;
a85416e2755608 Tomas Winkler 2015-01-28 1064 int op_mode;
a85416e2755608 Tomas Winkler 2015-01-28 1065
a85416e2755608 Tomas Winkler 2015-01-28 1066 card = md->queue.card;
a85416e2755608 Tomas Winkler 2015-01-28 1067 if (IS_ERR(card)) {
a85416e2755608 Tomas Winkler 2015-01-28 1068 err = PTR_ERR(card);
a85416e2755608 Tomas Winkler 2015-01-28 1069 goto cmd_err;
a85416e2755608 Tomas Winkler 2015-01-28 1070 }
a85416e2755608 Tomas Winkler 2015-01-28 1071
a85416e2755608 Tomas Winkler 2015-01-28 1072 /*
a85416e2755608 Tomas Winkler 2015-01-28 1073 * Dispatch the ioctl()s into the block request queue.
a85416e2755608 Tomas Winkler 2015-01-28 1074 */
a85416e2755608 Tomas Winkler 2015-01-28 1075 mq = &md->queue;
a85416e2755608 Tomas Winkler 2015-01-28 @1076 op_mode = idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
a85416e2755608 Tomas Winkler 2015-01-28 1077 req = blk_get_request(mq->queue, op_mode, 0);
a85416e2755608 Tomas Winkler 2015-01-28 1078 if (IS_ERR(req)) {
a85416e2755608 Tomas Winkler 2015-01-28 1079 err = PTR_ERR(req);
a85416e2755608 Tomas Winkler 2015-01-28 1080 goto cmd_err;
a85416e2755608 Tomas Winkler 2015-01-28 1081 }
a85416e2755608 Tomas Winkler 2015-01-28 1082
a85416e2755608 Tomas Winkler 2015-01-28 1083 req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL_RPMB;
a85416e2755608 Tomas Winkler 2015-01-28 1084 req_to_mmc_queue_req(req)->drv_op_data = idata;
a85416e2755608 Tomas Winkler 2015-01-28 1085 req_to_mmc_queue_req(req)->ioc_count = num_of_cmds;
a85416e2755608 Tomas Winkler 2015-01-28 1086
a85416e2755608 Tomas Winkler 2015-01-28 1087 blk_execute_rq(mq->queue, NULL, req, 0);
a85416e2755608 Tomas Winkler 2015-01-28 1088
a85416e2755608 Tomas Winkler 2015-01-28 1089 err = req_to_mmc_queue_req(req)->drv_op_result;
a85416e2755608 Tomas Winkler 2015-01-28 1090
a85416e2755608 Tomas Winkler 2015-01-28 1091 blk_put_request(req);
a85416e2755608 Tomas Winkler 2015-01-28 1092
a85416e2755608 Tomas Winkler 2015-01-28 1093 cmd_err:
a85416e2755608 Tomas Winkler 2015-01-28 1094 return err;
a85416e2755608 Tomas Winkler 2015-01-28 1095 }
a85416e2755608 Tomas Winkler 2015-01-28 1096
:::::: The code at line 1076 was first introduced by commit
:::::: a85416e27556088f75f35fb5c464ece37d204591 mmc: block: register RPMB partition with the RPMB subsystem
:::::: TO: Tomas Winkler <tomas.winkler@intel.com>
:::::: CC: Dutta, Ranjan <ranjan.dutta@intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2022-02-12 18:17 [intel-lts:5.10/yocto 2/2] drivers/mmc/core/block.c:1076:12: warning: Branch condition evaluates to a garbage value [clang-analyzer-core.uninitialized.Branch] kernel test robot
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2022-01-17 23:19 kernel test robot
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