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| author |   Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2019-11-28 15:55:45 +0100 |
|---|---|---|
| committer |   Li Yang <leoyang.li@nxp.com> | 2019-12-09 13:54:36 -0600 |
| commit | 611780a6aa500345360bcda8a6dfdcd0666d4695 (patch) | |
| tree | 1ae51f7f74485ffa42338828af55fa3a1b27934b /include/soc/fsl | |
| parent | soc: fsl: qe: refactor cpm_muram_alloc_common to prevent BUG on error path (diff) | |
| download | wireguard-linux-611780a6aa500345360bcda8a6dfdcd0666d4695.tar.xz wireguard-linux-611780a6aa500345360bcda8a6dfdcd0666d4695.zip | |
soc: fsl: qe: avoid IS_ERR_VALUE in ucc_slow.c
When trying to build this for a 64-bit platform, one gets warnings
from using IS_ERR_VALUE on something which is not sizeof(long).
Instead, change the various *_offset fields to store a signed integer,
and simply check for a negative return from qe_muram_alloc(). Since
qe_muram_free() now accepts and ignores a negative argument, we only
need to make sure these fields are initialized with -1, and we can
just unconditionally call qe_muram_free() in ucc_slow_free().
Note that the error case for us_pram_offset failed to set that field
to 0 (which, as noted earlier, is anyway a bogus sentinel value).
Reviewed-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Diffstat (limited to 'include/soc/fsl')
| -rw-r--r-- | include/soc/fsl/qe/ucc_slow.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/soc/fsl/qe/ucc_slow.h b/include/soc/fsl/qe/ucc_slow.h index 8696fdea2ae9..d187a6be83bc 100644 --- a/include/soc/fsl/qe/ucc_slow.h +++ b/include/soc/fsl/qe/ucc_slow.h @@ -185,7 +185,7 @@ struct ucc_slow_private { struct ucc_slow_info *us_info; struct ucc_slow __iomem *us_regs; /* Ptr to memory map of UCC regs */ struct ucc_slow_pram *us_pram; /* a pointer to the parameter RAM */ - u32 us_pram_offset; + s32 us_pram_offset; int enabled_tx; /* Whether channel is enabled for Tx (ENT) */ int enabled_rx; /* Whether channel is enabled for Rx (ENR) */ int stopped_tx; /* Whether channel has been stopped for Tx @@ -194,8 +194,8 @@ struct ucc_slow_private { struct list_head confQ; /* frames passed to chip waiting for tx */ u32 first_tx_bd_mask; /* mask is used in Tx routine to save status and length for first BD in a frame */ - u32 tx_base_offset; /* first BD in Tx BD table offset (In MURAM) */ - u32 rx_base_offset; /* first BD in Rx BD table offset (In MURAM) */ + s32 tx_base_offset; /* first BD in Tx BD table offset (In MURAM) */ + s32 rx_base_offset; /* first BD in Rx BD table offset (In MURAM) */ struct qe_bd *confBd; /* next BD for confirm after Tx */ struct qe_bd *tx_bd; /* next BD for new Tx request */ struct qe_bd *rx_bd; /* next BD to collect after Rx */ |