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Message-ID: <202204070930.v6UQvVXJ-lkp@intel.com>
Date: Thu, 7 Apr 2022 09:25:10 +0800
From: kernel test robot <lkp@...el.com>
To: David Howells <dhowells@...hat.com>
Cc: kbuild-all@...ts.01.org,
GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:dhowells/linux-fs/netfs-maple 26/40]
fs/netfs/crypto.c:208:1: warning: the frame size of 1040 bytes is larger
than 1024 bytes
tree: https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-maple
head: 674eea41fc70a740ff83ec590f9833f805852464
commit: fc693b2e39df6567a0312f21bb9004e1d7983286 [26/40] netfs: Perform content encryption
config: powerpc-buildonly-randconfig-r004-20220406 (https://download.01.org/0day-ci/archive/20220407/202204070930.v6UQvVXJ-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/ammarfaizi2/linux-block/commit/fc693b2e39df6567a0312f21bb9004e1d7983286
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-maple
git checkout fc693b2e39df6567a0312f21bb9004e1d7983286
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash fs/netfs/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/kernel.h:26,
from arch/powerpc/include/asm/page.h:11,
from arch/powerpc/include/asm/thread_info.h:13,
from include/linux/thread_info.h:60,
from include/asm-generic/preempt.h:5,
from ./arch/powerpc/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:55,
from include/linux/wait.h:9,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from fs/netfs/crypto.c:8:
fs/netfs/crypto.c: In function 'netfs_xarray_to_sglist':
include/linux/minmax.h:20:35: warning: comparison of distinct pointer types lacks a cast
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
include/linux/minmax.h:26:18: note: in expansion of macro '__typecheck'
26 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
include/linux/minmax.h:36:31: note: in expansion of macro '__safe_cmp'
36 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
include/linux/minmax.h:45:25: note: in expansion of macro '__careful_cmp'
45 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
fs/netfs/crypto.c:76:31: note: in expansion of macro 'min'
76 | seg = min(len, PAGE_SIZE - offset);
| ^~~
fs/netfs/crypto.c: In function 'netfs_encrypt':
>> fs/netfs/crypto.c:208:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
208 | }
| ^
vim +208 fs/netfs/crypto.c
133
134 /*
135 * Prepare a write request for writing. We encrypt from wreq->buffer to
136 * wreq->buffer2.
137 */
138 bool netfs_encrypt(struct netfs_io_request *wreq)
139 {
140 struct netfs_i_context *ctx = netfs_i_context(wreq->inode);
141 struct scatterlist source_sg[16], dest_sg[16];
142 unsigned int n_source, n_dest;
143 size_t n, chunk, bsize = 1UL << ctx->crypto_bshift;
144 loff_t pos;
145 int ret;
146
147 _enter("");
148
149 trace_netfs_rreq(wreq, netfs_rreq_trace_encrypt);
150
151 pos = wreq->start;
152 n = wreq->len;
153 _debug("ENCRYPT %llx-%llx", pos, pos + n - 1);
154
155 for (; n > 0; n -= chunk, pos += chunk) {
156 chunk = min(n, bsize);
157
158 switch (wreq->buffering) {
159 case NETFS_ENC_BUFFER_TO_BOUNCE:
160 ret = netfs_xarray_to_sglist(&wreq->buffer, pos, chunk,
161 source_sg, ARRAY_SIZE(source_sg));
162 break;
163 case NETFS_ENC_DIRECT_TO_BOUNCE:
164 ret = netfs_iter_to_sglist(&wreq->direct_iter, chunk,
165 dest_sg, ARRAY_SIZE(dest_sg));
166 break;
167 case NETFS_COPY_ENC_BOUNCE:
168 ret = netfs_xarray_to_sglist(&wreq->bounce, pos, chunk,
169 source_sg, ARRAY_SIZE(source_sg));
170 break;
171 default:
172 BUG();
173 }
174 if (ret < 0)
175 goto error;
176 n_source = ret;
177
178 switch (wreq->buffering) {
179 case NETFS_ENC_BUFFER_TO_BOUNCE:
180 case NETFS_ENC_DIRECT_TO_BOUNCE:
181 ret = netfs_xarray_to_sglist(&wreq->bounce, pos, chunk,
182 dest_sg, ARRAY_SIZE(dest_sg));
183 break;
184 case NETFS_COPY_ENC_BOUNCE:
185 memcpy(dest_sg, source_sg, sizeof(dest_sg));
186 ret = n_source;
187 break;
188 default:
189 BUG();
190 }
191 if (ret < 0)
192 goto error;
193 n_dest = ret;
194
195 ret = ctx->ops->encrypt_block(wreq, pos, chunk,
196 source_sg, n_source, dest_sg, n_dest);
197 if (ret < 0)
198 goto error_failed;
199 }
200
201 return true;
202
203 error_failed:
204 trace_netfs_failure(wreq, NULL, ret, netfs_fail_encryption);
205 error:
206 wreq->error = ret;
207 return false;
> 208 }
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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