From abf9d005375d6c6160cc9c17e5dcac32e412c8dc Mon Sep 17 00:00:00 2001 From: Gianluca Gennari Date: Tue, 6 Mar 2012 09:47:45 -0300 Subject: [PATCH] [media] as102: add __packed attribute to structs defined inside packed structs This patch fixes a regression in kernel 3.3 due to this patch: http://patchwork.linuxtv.org/patch/8332/ That patch changes "#pragma pack(1)" with "__packed" attributes, but it is not complete. In fact, in the as102 driver there are a lot of structs/unions defined inside other structs/unions. When the "__packed" attribute is applied only on the external struct, it will not affect the internal struct definitions. So the regression is fixed by specifiying the "__packed" attribute also on the internal structs. This patch should go into 3.3, as it fixes a regression introduced in the new kernel version. Signed-off-by: Gianluca Gennari Signed-off-by: Ryley Angus Cc: stable@kernel.org # for v3.3 Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/as102/as102_fw.h | 2 +- drivers/staging/media/as102/as10x_cmd.h | 80 +++++++++++------------ drivers/staging/media/as102/as10x_types.h | 2 +- 3 files changed, 42 insertions(+), 42 deletions(-) diff --git a/drivers/staging/media/as102/as102_fw.h b/drivers/staging/media/as102/as102_fw.h index bd21f0554392..4bfc6849d95a 100644 --- a/drivers/staging/media/as102/as102_fw.h +++ b/drivers/staging/media/as102/as102_fw.h @@ -29,7 +29,7 @@ struct as10x_fw_pkt_t { union { unsigned char request[2]; unsigned char length[2]; - } u; + } __packed u; struct as10x_raw_fw_pkt raw; } __packed; diff --git a/drivers/staging/media/as102/as10x_cmd.h b/drivers/staging/media/as102/as10x_cmd.h index 4ea249e7adab..e21ec6c702a9 100644 --- a/drivers/staging/media/as102/as10x_cmd.h +++ b/drivers/staging/media/as102/as10x_cmd.h @@ -99,14 +99,14 @@ union as10x_turn_on { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_turn_off { @@ -114,14 +114,14 @@ union as10x_turn_off { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* error */ uint8_t err; - } rsp; + } __packed rsp; } __packed; union as10x_set_tune { @@ -131,14 +131,14 @@ union as10x_set_tune { uint16_t proc_id; /* tune params */ struct as10x_tune_args args; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* response error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_get_tune_status { @@ -146,7 +146,7 @@ union as10x_get_tune_status { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -155,7 +155,7 @@ union as10x_get_tune_status { uint8_t error; /* tune status */ struct as10x_tune_status sts; - } rsp; + } __packed rsp; } __packed; union as10x_get_tps { @@ -163,7 +163,7 @@ union as10x_get_tps { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -172,7 +172,7 @@ union as10x_get_tps { uint8_t error; /* tps details */ struct as10x_tps tps; - } rsp; + } __packed rsp; } __packed; union as10x_common { @@ -180,14 +180,14 @@ union as10x_common { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* response error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_add_pid_filter { @@ -201,7 +201,7 @@ union as10x_add_pid_filter { uint8_t stream_type; /* PID index in filter table */ uint8_t idx; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -210,7 +210,7 @@ union as10x_add_pid_filter { uint8_t error; /* Filter id */ uint8_t filter_id; - } rsp; + } __packed rsp; } __packed; union as10x_del_pid_filter { @@ -220,14 +220,14 @@ union as10x_del_pid_filter { uint16_t proc_id; /* PID to remove */ uint16_t pid; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* response error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_start_streaming { @@ -235,14 +235,14 @@ union as10x_start_streaming { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_stop_streaming { @@ -250,14 +250,14 @@ union as10x_stop_streaming { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_get_demod_stats { @@ -265,7 +265,7 @@ union as10x_get_demod_stats { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -274,7 +274,7 @@ union as10x_get_demod_stats { uint8_t error; /* demod stats */ struct as10x_demod_stats stats; - } rsp; + } __packed rsp; } __packed; union as10x_get_impulse_resp { @@ -282,7 +282,7 @@ union as10x_get_impulse_resp { struct { /* request identifier */ uint16_t proc_id; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -291,7 +291,7 @@ union as10x_get_impulse_resp { uint8_t error; /* impulse response ready */ uint8_t is_ready; - } rsp; + } __packed rsp; } __packed; union as10x_fw_context { @@ -305,7 +305,7 @@ union as10x_fw_context { uint16_t tag; /* context request type */ uint16_t type; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -316,7 +316,7 @@ union as10x_fw_context { uint16_t type; /* error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_set_register { @@ -328,14 +328,14 @@ union as10x_set_register { struct as10x_register_addr reg_addr; /* register content */ struct as10x_register_value reg_val; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; union as10x_get_register { @@ -345,7 +345,7 @@ union as10x_get_register { uint16_t proc_id; /* register description */ struct as10x_register_addr reg_addr; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -354,7 +354,7 @@ union as10x_get_register { uint8_t error; /* register content */ struct as10x_register_value reg_val; - } rsp; + } __packed rsp; } __packed; union as10x_cfg_change_mode { @@ -364,14 +364,14 @@ union as10x_cfg_change_mode { uint16_t proc_id; /* mode */ uint8_t mode; - } req; + } __packed req; /* response */ struct { /* response identifier */ uint16_t proc_id; /* error */ uint8_t error; - } rsp; + } __packed rsp; } __packed; struct as10x_cmd_header_t { @@ -394,7 +394,7 @@ union as10x_dump_memory { struct as10x_register_addr reg_addr; /* nb blocks to read */ uint16_t num_blocks; - } req; + } __packed req; /* response */ struct { /* response identifier */ @@ -408,8 +408,8 @@ union as10x_dump_memory { uint8_t data8[DUMP_BLOCK_SIZE]; uint16_t data16[DUMP_BLOCK_SIZE / sizeof(uint16_t)]; uint32_t data32[DUMP_BLOCK_SIZE / sizeof(uint32_t)]; - } u; - } rsp; + } __packed u; + } __packed rsp; } __packed; union as10x_dumplog_memory { @@ -418,7 +418,7 @@ union as10x_dumplog_memory { uint16_t proc_id; /* dump memory type request */ uint8_t dump_req; - } req; + } __packed req; struct { /* request identifier */ uint16_t proc_id; @@ -428,7 +428,7 @@ union as10x_dumplog_memory { uint8_t dump_rsp; /* dump data */ uint8_t data[DUMP_BLOCK_SIZE]; - } rsp; + } __packed rsp; } __packed; union as10x_raw_data { @@ -437,14 +437,14 @@ union as10x_raw_data { uint16_t proc_id; uint8_t data[64 - sizeof(struct as10x_cmd_header_t) - 2 /* proc_id */]; - } req; + } __packed req; /* response */ struct { uint16_t proc_id; uint8_t error; uint8_t data[64 - sizeof(struct as10x_cmd_header_t) - 2 /* proc_id */ - 1 /* rc */]; - } rsp; + } __packed rsp; } __packed; struct as10x_cmd_t { @@ -469,7 +469,7 @@ struct as10x_cmd_t { union as10x_dump_memory dump_memory; union as10x_dumplog_memory dumplog_memory; union as10x_raw_data raw_data; - } body; + } __packed body; } __packed; struct as10x_token_cmd_t { diff --git a/drivers/staging/media/as102/as10x_types.h b/drivers/staging/media/as102/as10x_types.h index fde8140ae88b..af26e057d9a2 100644 --- a/drivers/staging/media/as102/as10x_types.h +++ b/drivers/staging/media/as102/as10x_types.h @@ -181,7 +181,7 @@ struct as10x_register_value { uint8_t value8; /* 8 bit value */ uint16_t value16; /* 16 bit value */ uint32_t value32; /* 32 bit value */ - } u; + } __packed u; } __packed; struct as10x_register_addr {