openwrt/package/kernel/lantiq/ltq-vdsl-vr11-mei/patches/122-cp_linux-fix-compilation-warning.patch
Christian Marangi 717d482cd0
kernel: ltq-vdsl-vr11-mei: fix compilation warning
Fix compilation warning in variable length array msg and ret value not
handled.
Fix compilation warning:
/__w/openwrt/openwrt/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_chromium/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_api_intern.c: In function 'MEI_Internal_DumpMessage':
/__w/openwrt/openwrt/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_chromium/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_api_intern.c:441:4: error: ISO C90 forbids variable length array 'msg' [-Werror=vla]
  441 |    char msg[nMsgSize];
      |    ^~~~
/__w/openwrt/openwrt/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_chromium/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_api_intern.c:442:4: error: ISO C90 forbids array 'buf' whose size cannot be evaluated [-Werror=vla]
  442 |    char buf[nBufSize];
      |    ^~~~
cc1: all warnings being treated as errors

/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c: In function 'MEI_Ioctl':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c:1270:4: error: ignoring return value of 'copy_to_user' declared with attribute 'warn_unused_result' [-Werror=unused-result]
 1270 |    copy_to_user( ((IOCTL_MEI_arg_t *)nArgument), &local_args, retSize);
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c: In function 'MEI_IoctlMeiDbgAccessWr_Wrap':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c:3574:4: error: ignoring return value of 'copy_to_user' declared with attribute 'warn_unused_result' [-Werror=unused-result]
 3574 |    copy_to_user( (void *)&pUserArgument->count,
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 3575 |                  (void *)&pLocalArgument->count,
      |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 3576 |                  sizeof(pUserArgument->count) ) ;
      |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c: In function 'MEI_IoctlMeiDbgAccessRd_Wrap':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c:3603:7: error: ignoring return value of 'copy_to_user' declared with attribute 'warn_unused_result' [-Werror=unused-result]
 3603 |       copy_to_user( pUserBuf,
      |       ^~~~~~~~~~~~~~~~~~~~~~~
 3604 |                     pLocalArgument->pData_32,
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~
 3605 |                     pLocalArgument->count * sizeof(IFX_uint32_t) ) ;
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/dsl_cpe_mei-ugw_8.5.2.10/src/drv_mei_cpe_linux.c:3610:4: error: ignoring return value of 'copy_to_user' declared with attribute 'warn_unused_result' [-Werror=unused-result]
 3610 |    copy_to_user( (void *)&pUserArgument->count,
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 3611 |                  (void *)&pLocalArgument->count,
      |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 3612 |                  sizeof(pUserArgument->count) ) ;
      |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:45 +02:00

53 lines
2.0 KiB
Diff

--- a/src/drv_mei_cpe_linux.c
+++ b/src/drv_mei_cpe_linux.c
@@ -1267,7 +1267,9 @@ static long MEI_Ioctl( struct file *filp,
MEI_IOCTL_RETURN:
local_args.drv_ioctl.retCode = ret;
- copy_to_user( ((IOCTL_MEI_arg_t *)nArgument), &local_args, retSize);
+ if (copy_to_user( ((IOCTL_MEI_arg_t *)nArgument), &local_args, retSize))
+ PRN_ERR_USR_NL( MEI_DRV, MEI_DRV_PRN_LEVEL_ERR,
+ ("MEI_DRV[??] Error ioctl - copy_to_user failed!" MEI_DRV_CRLF));
return (ret < 0) ? -1 : 0;
}
@@ -3571,9 +3573,11 @@ static int MEI_IoctlMeiDbgAccessWr_Wrap(
ret = MEI_IoctlMeiDbgAccessWr( pMeiDynCntrl, pLocalArgument);
/* return arguments - count */
- copy_to_user( (void *)&pUserArgument->count,
+ if (copy_to_user( (void *)&pUserArgument->count,
(void *)&pLocalArgument->count,
- sizeof(pUserArgument->count) ) ;
+ sizeof(pUserArgument->count) ))
+ PRN_ERR_USR_NL( MEI_DRV, MEI_DRV_PRN_LEVEL_ERR,
+ ("MEI_DRV[??] Error ioctl - copy_to_user failed!" MEI_DRV_CRLF));
return ret;
}
@@ -3600,16 +3604,20 @@ static int MEI_IoctlMeiDbgAccessRd_Wrap(
if ( pLocalArgument->count )
{
/* return the buffer */
- copy_to_user( pUserBuf,
+ if (copy_to_user( pUserBuf,
pLocalArgument->pData_32,
- pLocalArgument->count * sizeof(IFX_uint32_t) ) ;
+ pLocalArgument->count * sizeof(IFX_uint32_t) ))
+ PRN_ERR_USR_NL( MEI_DRV, MEI_DRV_PRN_LEVEL_ERR,
+ ("MEI_DRV[??] Error ioctl - copy_to_user failed!" MEI_DRV_CRLF));
}
/* return count argument */
- copy_to_user( (void *)&pUserArgument->count,
+ if (copy_to_user( (void *)&pUserArgument->count,
(void *)&pLocalArgument->count,
- sizeof(pUserArgument->count) ) ;
+ sizeof(pUserArgument->count) ))
+ PRN_ERR_USR_NL( MEI_DRV, MEI_DRV_PRN_LEVEL_ERR,
+ ("MEI_DRV[??] Error ioctl - copy_to_user failed!" MEI_DRV_CRLF));
return ret;
}