From e00cc83ecc3dc4ac9bd9db4f2d6f927d6f43bfd0 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 9 Sep 2019 04:28:14 -0300 Subject: [PATCH] media: hantro: h264: Rename POC_CMP() into HANTRO_CMP() And use it for all native type comparisons, even if it's not strictly required. By doing that we make the code more consistent and prevent from potential incorrect results in case of overflow or when the the values being compared are both negative. Signed-off-by: Boris Brezillon Tested-by: Francois Buergisser Reviewed-by: Tomasz Figa Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/hantro/hantro_h264.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c index 648c8a81efa8..4557f148583a 100644 --- a/drivers/staging/media/hantro/hantro_h264.c +++ b/drivers/staging/media/hantro/hantro_h264.c @@ -22,7 +22,7 @@ #define POC_BUFFER_SIZE 34 #define SCALING_LIST_SIZE (6 * 16 + 6 * 64) -#define POC_CMP(p0, p1) ((p0) < (p1) ? -1 : 1) +#define HANTRO_CMP(a, b) ((a) < (b) ? -1 : 1) /* Data structure describing auxiliary buffer format. */ struct hantro_h264_dec_priv_tbl { @@ -353,9 +353,9 @@ static int p_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) * ascending order. */ if (!(a->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)) - return b->frame_num - a->frame_num; + return HANTRO_CMP(b->frame_num, a->frame_num); - return a->pic_num - b->pic_num; + return HANTRO_CMP(a->pic_num, b->pic_num); } static int b0_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) @@ -381,7 +381,7 @@ static int b0_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) /* Long term pics in ascending pic num order. */ if (a->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) - return a->pic_num - b->pic_num; + return HANTRO_CMP(a->pic_num, b->pic_num); poca = builder->pocs[idxa]; pocb = builder->pocs[idxb]; @@ -392,11 +392,11 @@ static int b0_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) * order. */ if ((poca < builder->curpoc) != (pocb < builder->curpoc)) - return POC_CMP(poca, pocb); + return HANTRO_CMP(poca, pocb); else if (poca < builder->curpoc) - return POC_CMP(pocb, poca); + return HANTRO_CMP(pocb, poca); - return POC_CMP(poca, pocb); + return HANTRO_CMP(poca, pocb); } static int b1_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) @@ -422,7 +422,7 @@ static int b1_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) /* Long term pics in ascending pic num order. */ if (a->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) - return a->pic_num - b->pic_num; + return HANTRO_CMP(a->pic_num, b->pic_num); poca = builder->pocs[idxa]; pocb = builder->pocs[idxb]; @@ -433,11 +433,11 @@ static int b1_ref_list_cmp(const void *ptra, const void *ptrb, const void *data) * order. */ if ((poca < builder->curpoc) != (pocb < builder->curpoc)) - return POC_CMP(pocb, poca); + return HANTRO_CMP(pocb, poca); else if (poca < builder->curpoc) - return POC_CMP(pocb, poca); + return HANTRO_CMP(pocb, poca); - return POC_CMP(poca, pocb); + return HANTRO_CMP(poca, pocb); } static void