From: kernel test robot <lkp@intel.com>
To: Daniel Borkmann <daniel@iogearbox.net>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [cilium:pr/bpf-tproxy 8/8] drivers/net/ethernet/sfc/ef100_rx.c:176:3: warning: shift count is negative
Date: Fri, 17 Apr 2026 05:15:20 +0800 [thread overview]
Message-ID: <202604170525.XFv5pb6f-lkp@intel.com> (raw)
tree: https://github.com/cilium/linux.git pr/bpf-tproxy
head: 27d1eafb8d37f1b272a991077d3bd1bb312118a9
commit: 27d1eafb8d37f1b272a991077d3bd1bb312118a9 [8/8] bpf: Support SOCK_RCU_FREE sockets in bpf_sk_assign on egress
config: i386-buildonly-randconfig-003-20260416 (https://download.01.org/0day-ci/archive/20260417/202604170525.XFv5pb6f-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260417/202604170525.XFv5pb6f-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604170525.XFv5pb6f-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/net/ethernet/sfc/ef100_rx.c:11:
In file included from drivers/net/ethernet/sfc/net_driver.h:28:
In file included from include/net/busy_poll.h:18:
In file included from include/net/ip.h:29:
In file included from include/net/inet_sock.h:24:
include/net/request_sock.h:117:29: error: use of undeclared identifier 'sock_pfree_ref'; did you mean 'sock_kfree_s'?
117 | skb->destructor == sock_pfree_ref;
| ^~~~~~~~~~~~~~
| sock_kfree_s
include/net/sock.h:1901:6: note: 'sock_kfree_s' declared here
1901 | void sock_kfree_s(struct sock *sk, void *mem, int size);
| ^
>> drivers/net/ethernet/sfc/ef100_rx.c:176:3: warning: shift count is negative [-Wshift-count-negative]
176 | EFX_QWORD_FIELD(*p_event, ESF_GZ_EV_RXPKTS_NUM_PKT);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:231:26: note: expanded from macro 'EFX_QWORD_FIELD'
231 | #define EFX_QWORD_FIELD EFX_QWORD_FIELD32
| ^
drivers/net/ethernet/sfc/bitfield.h:183:2: note: expanded from macro 'EFX_QWORD_FIELD32'
183 | EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
184 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:163:4: note: expanded from macro 'EFX_EXTRACT_QWORD32'
163 | EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:128:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
128 | (native_element) >> ((low) - (min)) : \
| ^ ~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100_rx.c:176:3: warning: shift count >= width of type [-Wshift-count-overflow]
176 | EFX_QWORD_FIELD(*p_event, ESF_GZ_EV_RXPKTS_NUM_PKT);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:231:26: note: expanded from macro 'EFX_QWORD_FIELD'
231 | #define EFX_QWORD_FIELD EFX_QWORD_FIELD32
| ^
drivers/net/ethernet/sfc/bitfield.h:183:2: note: expanded from macro 'EFX_QWORD_FIELD32'
183 | EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
184 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:163:4: note: expanded from macro 'EFX_EXTRACT_QWORD32'
163 | EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:129:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
129 | (native_element) << ((min) - (low)))
| ^ ~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/ef100_rx.c:205:3: warning: shift count is negative [-Wshift-count-negative]
205 | EFX_POPULATE_QWORD_1(*rxd, ESF_GZ_RX_BUF_ADDR, rx_buf->dma_addr);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:440:2: note: expanded from macro 'EFX_POPULATE_QWORD_1'
440 | EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:438:2: note: expanded from macro 'EFX_POPULATE_QWORD_2'
438 | EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:436:2: note: expanded from macro 'EFX_POPULATE_QWORD_3'
436 | EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 21 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/net/ethernet/sfc/bitfield.h:258:3: note: expanded from macro 'EFX_INSERT_NATIVE'
258 | EFX_INSERT_NATIVE64(min, max, low, high, value) : \
| ^
drivers/net/ethernet/sfc/bitfield.h:247:21: note: expanded from macro 'EFX_INSERT_NATIVE64'
247 | (((u64) (value)) << (low - min)) : \
| ^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__cpu_to_le32'
34 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/net/ethernet/sfc/ef100_rx.c:205:3: warning: shift count is negative [-Wshift-count-negative]
205 | EFX_POPULATE_QWORD_1(*rxd, ESF_GZ_RX_BUF_ADDR, rx_buf->dma_addr);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:440:2: note: expanded from macro 'EFX_POPULATE_QWORD_1'
440 | EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:438:2: note: expanded from macro 'EFX_POPULATE_QWORD_2'
438 | EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:436:2: note: expanded from macro 'EFX_POPULATE_QWORD_3'
436 | EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 21 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/net/ethernet/sfc/bitfield.h:259:3: note: expanded from macro 'EFX_INSERT_NATIVE'
259 | EFX_INSERT_NATIVE32(min, max, low, high, value))
| ^
drivers/net/ethernet/sfc/bitfield.h:253:21: note: expanded from macro 'EFX_INSERT_NATIVE32'
253 | (((u32) (value)) << (low - min)) : \
| ^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__cpu_to_le32'
34 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/net/ethernet/sfc/ef100_rx.c:205:3: warning: shift count >= width of type [-Wshift-count-overflow]
205 | EFX_POPULATE_QWORD_1(*rxd, ESF_GZ_RX_BUF_ADDR, rx_buf->dma_addr);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:440:2: note: expanded from macro 'EFX_POPULATE_QWORD_1'
440 | EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:438:2: note: expanded from macro 'EFX_POPULATE_QWORD_2'
438 | EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:436:2: note: expanded from macro 'EFX_POPULATE_QWORD_3'
436 | EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 21 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/net/ethernet/sfc/bitfield.h:259:3: note: expanded from macro 'EFX_INSERT_NATIVE'
259 | EFX_INSERT_NATIVE32(min, max, low, high, value))
| ^
drivers/net/ethernet/sfc/bitfield.h:254:21: note: expanded from macro 'EFX_INSERT_NATIVE32'
254 | (((u32) (value)) >> (min - low))))
| ^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__cpu_to_le32'
34 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/net/ethernet/sfc/ef100_rx.c:205:3: warning: shift count is negative [-Wshift-count-negative]
205 | EFX_POPULATE_QWORD_1(*rxd, ESF_GZ_RX_BUF_ADDR, rx_buf->dma_addr);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:440:2: note: expanded from macro 'EFX_POPULATE_QWORD_1'
440 | EFX_POPULATE_QWORD_2(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:438:2: note: expanded from macro 'EFX_POPULATE_QWORD_2'
438 | EFX_POPULATE_QWORD_3(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:436:2: note: expanded from macro 'EFX_POPULATE_QWORD_3'
436 | EFX_POPULATE_QWORD_4(qword, EFX_DUMMY_FIELD, 0, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 21 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/net/ethernet/sfc/bitfield.h:258:3: note: expanded from macro 'EFX_INSERT_NATIVE'
258 | EFX_INSERT_NATIVE64(min, max, low, high, value) : \
--
In file included from drivers/net/ethernet/sfc/mcdi_port.c:12:
In file included from drivers/net/ethernet/sfc/efx.h:12:
In file included from drivers/net/ethernet/sfc/net_driver.h:28:
In file included from include/net/busy_poll.h:18:
In file included from include/net/ip.h:29:
In file included from include/net/inet_sock.h:24:
include/net/request_sock.h:117:29: error: use of undeclared identifier 'sock_pfree_ref'; did you mean 'sock_kfree_s'?
117 | skb->destructor == sock_pfree_ref;
| ^~~~~~~~~~~~~~
| sock_kfree_s
include/net/sock.h:1901:6: note: 'sock_kfree_s' declared here
1901 | void sock_kfree_s(struct sock *sk, void *mem, int size);
| ^
>> drivers/net/ethernet/sfc/mcdi_port.c:41:9: warning: shift count >= width of type [-Wshift-count-overflow]
41 | return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/mcdi.h:257:2: note: expanded from macro 'MCDI_DWORD'
257 | EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:187:2: note: expanded from macro 'EFX_DWORD_FIELD'
187 | EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
188 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:168:3: note: expanded from macro 'EFX_EXTRACT_DWORD'
168 | EFX_MASK32((high) + 1 - (low)))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:73:16: note: expanded from macro 'EFX_MASK32'
73 | (((((u32) 1) << (width))) - 1))
| ^ ~~~~~~~
1 warning and 1 error generated.
--
In file included from drivers/net/ethernet/sfc/ef100.c:12:
In file included from drivers/net/ethernet/sfc/net_driver.h:28:
In file included from include/net/busy_poll.h:18:
In file included from include/net/ip.h:29:
In file included from include/net/inet_sock.h:24:
include/net/request_sock.h:117:29: error: use of undeclared identifier 'sock_pfree_ref'; did you mean 'sock_kfree_s'?
117 | skb->destructor == sock_pfree_ref;
| ^~~~~~~~~~~~~~
| sock_kfree_s
include/net/sock.h:1901:6: note: 'sock_kfree_s' declared here
1901 | void sock_kfree_s(struct sock *sk, void *mem, int size);
| ^
>> drivers/net/ethernet/sfc/ef100.c:118:8: warning: shift count >= width of type [-Wshift-count-overflow]
118 | bar = EFX_OWORD_FIELD32(entry, ESF_GZ_CFGBAR_CONT_CAP_BAR);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:179:2: note: expanded from macro 'EFX_OWORD_FIELD32'
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
180 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:155:4: note: expanded from macro 'EFX_EXTRACT_OWORD32'
155 | ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:128:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
128 | (native_element) >> ((low) - (min)) : \
| ^ ~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100.c:118:8: warning: shift count is negative [-Wshift-count-negative]
118 | bar = EFX_OWORD_FIELD32(entry, ESF_GZ_CFGBAR_CONT_CAP_BAR);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:179:2: note: expanded from macro 'EFX_OWORD_FIELD32'
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
180 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:155:4: note: expanded from macro 'EFX_EXTRACT_OWORD32'
155 | ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:129:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
129 | (native_element) << ((min) - (low)))
| ^ ~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100.c:118:8: warning: shift count >= width of type [-Wshift-count-overflow]
118 | bar = EFX_OWORD_FIELD32(entry, ESF_GZ_CFGBAR_CONT_CAP_BAR);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:179:2: note: expanded from macro 'EFX_OWORD_FIELD32'
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
180 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:156:4: note: expanded from macro 'EFX_EXTRACT_OWORD32'
156 | EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:128:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
128 | (native_element) >> ((low) - (min)) : \
| ^ ~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100.c:118:8: warning: shift count is negative [-Wshift-count-negative]
118 | bar = EFX_OWORD_FIELD32(entry, ESF_GZ_CFGBAR_CONT_CAP_BAR);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:179:2: note: expanded from macro 'EFX_OWORD_FIELD32'
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
180 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:156:4: note: expanded from macro 'EFX_EXTRACT_OWORD32'
156 | EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:129:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
129 | (native_element) << ((min) - (low)))
| ^ ~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100.c:118:8: warning: shift count is negative [-Wshift-count-negative]
118 | bar = EFX_OWORD_FIELD32(entry, ESF_GZ_CFGBAR_CONT_CAP_BAR);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:179:2: note: expanded from macro 'EFX_OWORD_FIELD32'
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
180 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:158:4: note: expanded from macro 'EFX_EXTRACT_OWORD32'
158 | EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:128:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
128 | (native_element) >> ((low) - (min)) : \
| ^ ~~~~~~~~~~~~~~~
>> drivers/net/ethernet/sfc/ef100.c:118:8: warning: shift count >= width of type [-Wshift-count-overflow]
118 | bar = EFX_OWORD_FIELD32(entry, ESF_GZ_CFGBAR_CONT_CAP_BAR);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:179:2: note: expanded from macro 'EFX_OWORD_FIELD32'
179 | EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
180 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:158:4: note: expanded from macro 'EFX_EXTRACT_OWORD32'
158 | EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:143:2: note: expanded from macro 'EFX_EXTRACT32'
143 | EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:129:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
129 | (native_element) << ((min) - (low)))
| ^ ~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/ef100.c:120:11: warning: shift count >= width of type [-Wshift-count-overflow]
120 | offset = EFX_OWORD_FIELD64(entry, ESF_GZ_CFGBAR_CONT_CAP_OFFSET) <<
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:171:2: note: expanded from macro 'EFX_OWORD_FIELD64'
171 | EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
172 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:146:4: note: expanded from macro 'EFX_EXTRACT_OWORD64'
146 | ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:136:2: note: expanded from macro 'EFX_EXTRACT64'
136 | EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:128:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
128 | (native_element) >> ((low) - (min)) : \
| ^ ~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/ef100.c:120:11: warning: shift count is negative [-Wshift-count-negative]
120 | offset = EFX_OWORD_FIELD64(entry, ESF_GZ_CFGBAR_CONT_CAP_OFFSET) <<
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:171:2: note: expanded from macro 'EFX_OWORD_FIELD64'
171 | EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
172 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:146:4: note: expanded from macro 'EFX_EXTRACT_OWORD64'
146 | ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:136:2: note: expanded from macro 'EFX_EXTRACT64'
136 | EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:129:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
129 | (native_element) << ((min) - (low)))
| ^ ~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/ef100.c:120:11: warning: shift count is negative [-Wshift-count-negative]
120 | offset = EFX_OWORD_FIELD64(entry, ESF_GZ_CFGBAR_CONT_CAP_OFFSET) <<
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:171:2: note: expanded from macro 'EFX_OWORD_FIELD64'
171 | EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
172 | EFX_HIGH_BIT(field))
| ~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:147:4: note: expanded from macro 'EFX_EXTRACT_OWORD64'
147 | EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:136:2: note: expanded from macro 'EFX_EXTRACT64'
136 | EFX_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/sfc/bitfield.h:129:20: note: expanded from macro 'EFX_EXTRACT_NATIVE'
129 | (native_element) << ((min) - (low)))
| ^ ~~~~~~~~~~~~~~~
9 warnings and 1 error generated.
..
vim +176 drivers/net/ethernet/sfc/ef100_rx.c
8e57daf70671e4 Edward Cree 2020-08-03 171
8e57daf70671e4 Edward Cree 2020-08-03 172 void efx_ef100_ev_rx(struct efx_channel *channel, const efx_qword_t *p_event)
8e57daf70671e4 Edward Cree 2020-08-03 173 {
8e57daf70671e4 Edward Cree 2020-08-03 174 struct efx_rx_queue *rx_queue = efx_channel_get_rx_queue(channel);
8e57daf70671e4 Edward Cree 2020-08-03 175 unsigned int n_packets =
8e57daf70671e4 Edward Cree 2020-08-03 @176 EFX_QWORD_FIELD(*p_event, ESF_GZ_EV_RXPKTS_NUM_PKT);
8e57daf70671e4 Edward Cree 2020-08-03 177 int i;
8e57daf70671e4 Edward Cree 2020-08-03 178
8e57daf70671e4 Edward Cree 2020-08-03 179 WARN_ON_ONCE(!n_packets);
8e57daf70671e4 Edward Cree 2020-08-03 180 if (n_packets > 1)
8e57daf70671e4 Edward Cree 2020-08-03 181 ++channel->n_rx_merge_events;
8e57daf70671e4 Edward Cree 2020-08-03 182
8e57daf70671e4 Edward Cree 2020-08-03 183 channel->irq_mod_score += 2 * n_packets;
8e57daf70671e4 Edward Cree 2020-08-03 184
8e57daf70671e4 Edward Cree 2020-08-03 185 for (i = 0; i < n_packets; ++i) {
8e57daf70671e4 Edward Cree 2020-08-03 186 ef100_rx_packet(rx_queue,
8e57daf70671e4 Edward Cree 2020-08-03 187 rx_queue->removed_count & rx_queue->ptr_mask);
8e57daf70671e4 Edward Cree 2020-08-03 188 ++rx_queue->removed_count;
8e57daf70671e4 Edward Cree 2020-08-03 189 }
8e57daf70671e4 Edward Cree 2020-08-03 190 }
8e57daf70671e4 Edward Cree 2020-08-03 191
:::::: The code at line 176 was first introduced by commit
:::::: 8e57daf70671e482209b5d231a181f04845cf73e sfc_ef100: RX path for EF100
:::::: TO: Edward Cree <ecree@solarflare.com>
:::::: CC: David S. Miller <davem@davemloft.net>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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